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Medical Terminology
Medical Terms and Definitions
270
Other
Professional
07/18/2011

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Term
therm-
Definition
heat
Term
myo-
Definition
muscle
Term
card-
Definition
heart
Term
-itis
Definition
inflammation
Term
peri-
Definition
outer
Term
endo-
Definition
inner
Term
-osis
Definition
abnormal condition
Term
-ectomy
Definition
to cut out; remove
Term
-otomy
Definition
to cut into
Term
-ostomy
Definition
to make a "mouth"
Term
a/an
Definition
without, none
Term
micro
Definition
small
Term
macro
Definition
large
Term
mega- / -megaly
Definition
enlarged
Term
-scopy / -scopic
Definition
to look, observe
Term
-graphy / -graph
Definition
recording an image
Term
-gram
Definition
the image (x-ray)
Term
-ology / -ologist
Definition
study, specialize in
Term
stomato
Definition
mouth
Term
dento
Definition
teeth
Term
glosso/linguo
Definition
tongue
Term
gingivo
Definition
gums
Term
encephalo
Definition
brain
Term
gastro
Definition
stomach
Term
entero
Definition
intestine
Term
colo
Definition
large intestine
Term
procto
Definition
anus/rectum
Term
hepato
Definition
liver
Term
nephro/rene
Definition
kidney
Term
orchido
Definition
testis
Term
oophoro
Definition
ovary
Term
hystero/metro
Definition
uterus
Term
salpingo
Definition
uterine tubes
Term
dermo
Definition
skin
Term
masto/mammo
Definition
breast
Term
osteo
Definition
bones
Term
cardio
Definition
heart
Term
cysto
Definition
bladder
Term
rhino
Definition
nose
Term
phlebo/veno
Definition
veins
Term
pneumo/pulmo
Definition
lung
Term
hemo/emia
Definition
blood
Term
Four things present to define inflammation
Definition
pain, redness, heat, swelling
Term
leuk/o
Definition
white
Term
melan/o
Definition
black
Term
cyan/o
Definition
blue
Term
xanth/o
Definition
yellow
Term
aden/o
Definition
gland
Term
lip/o
Definition
fat
Term
my/o
Definition
muscle
Term
lymph/o
Definition
lymph tissue
Term
carcin/o
Definition
malignant
Term
osteo/o
Definition
bone
Term
endo
Definition
within, inside of
Term
peri
Definition
around
Term
circum
Definition
around
Term
retro
Definition
behind
Term
epi
Definition
upon, on top
Term
trans
Definition
through
Term
intra
Definition
within
Term
sub
Definition
below
Term
symptom
Definition
something you observe and complain about to the physician
Term
sign
Definition
something the physician notices and can measure
Term
cardi/o
Definition
heart
Term
brady
Definition
slow
Term
tachy
Definition
fast
Term
angi/o
Definition
vessel
Term
veno/phlebo
Definition
vein
Term
-stasis
Definition
to stop
Term
-cyte
Definition
cell
Term
hem/o, -emia
Definition
blood
Term
Atherosclerosis
Definition
literally, "hardening of the fatty stuff"
Term
Myocardial infarction
Definition
blockage of blood flow in the heart resulting in the death of muscle tissue
Term
stenosis
Definition
"a narrowing"
Term
Mitral prolapse
Definition
"a falling forward" of a valve in the heart
Term
regurgitation (in context of the heart)
Definition
backward flow
Term
angina pectoris
Definition
"pain in the chest"
Term
Arrhythmia/dysrhythmia
Definition
"no rhythm" and "abnormal rhythm"
Term
ischemia
Definition
"not quite enough blood"
Term
cardiologist
Definition
a physician specializing in the diagnosis and treatment of diseases in the circulatory system, especially the heart
Term
hematologist
Definition
a physician specializing in diseases of the blood
Term
Electrocardiogram (ECG/EKG)
Definition
a printout recording of the electrical activity of the heart
Term
echocardiography
Definition
using ultra high frequency sound waves to form an image of the inside of the heart
Term
cardiac catheterization
Definition
a long hollow tube (catheter) threaded into an artery up into the heart, followed by a material opaque to x-rays to allow imaging of coronary arteries to ID blockages
Term
phlebotomis/venipuncturist
Definition
trained nurse or technician that draws blood for tests and may also start IVs
Term
eryth
Definition
red
Term
cephal/o
Definition
head
Term
encephal/o
Definition
inside the head (brain)
Term
mening/o
Definition
membranes surrounding the brain and spinal cord
Term
myel/o
Definition
spinal cord
Term
neur/o
Definition
nerve
Term
dys
Definition
difficult, painful, abnormal
Term
-cele
Definition
hernia, abnormal protrusion of structure out of normal anatomical position
Term
-pathy
Definition
disease, abnormality
Term
-plasia
Definition
development, formation, growth
Term
-plegia
Definition
paralysis
Term
Multiple Sclerosis (MS)
Definition
literally, "many hardenings," disease of unknown origin that manifests as multiple hard plaques of degeneration of the insulating layer of nervous fibers in the CNS
Term
Cerebrovascular accident (CVA)
Definition
a stroke; many causes, patient may suffer paralysis, loss of speech, and/or loss of vision
Term
Transient Ischemic Attack (TIA)
Definition
a short period (less than 24 hrs) of insufficient blood supply to the brain
Term
epilepsy
Definition
Greek word for "seizure," a specific condition where seizures are intense and recur with some frequency
Term
aphasia
Definition
loss of speech
Term
neurologist
Definition
a physician specializing in diseases of the brain, spinal cord, and nerves
Term
Lumbar (spinal) puncture or tap (LP)
Definition
introducing a needle between the lower bony vertebrae of our spinal column in order to sample the fluid there
Term
Brain scan
Definition
introducing a radioactive element into the blood so as to image possible tumors in the brain
Term
Electroencephalography (EEG)
Definition
an image (written recording) of the brain's electrical activity
Term
Computed tomography (CT)
Definition
a specialized X-ray machine that takes multiple images of the body area from different angles and integrates the images into "slices" via a computer
Term
Magnetic Resonance Imaging (MRI)
Definition
patient's body is placed within strong magnetic field; radio pulses affect the resonance of atoms in the tissues; a computer analyzes this info to show high resolution images of soft tissues
Term
gastr/o
Definition
stomach
Term
hepat/o
Definition
liver
Term
chol/e
Definition
gall, bile
Term
cyst/o
Definition
bladder, sac
Term
emes/o
Definition
vomit
Term
lith/o
Definition
stone
Term
lapar/o
Definition
abdominal wall
Term
-centesis
Definition
to puncture
Term
-tripsy
Definition
to crush
Term
-rrhea
Definition
flow, discharge
Term
-iasis, -osis
Definition
abnormal condition
Term
Gastroesophageal Reflux Disease (GERD)
Definition
severe heartburn; weakness of the valve between the esophagus and stomach that allows stomach acid to reflux into the esophagus and irritate and inflame the lining, causing chest pain
Term
Jaundice
Definition
literally "yellow" in French; yellowing of the skin and whites of the eyes from a backup of bile metabolic by-products from the blood into body tissues
Term
Diverticulosis/diverticulitis
Definition
small pouches may form along the walls of the large intestine called "diverticuli" which if symptomatic, causing discomfort to the patient, is diverticulosis. These abnormal outpocketings may collect and not be able to empty fecal material which can lean to inflammation (diverticulitis)
Term
Cirrhosis
Definition
literally "orange-yellow" in Greek; a degenerative disease of the liver often developing in chronic alcoholics but with other known causes
Term
Portal hypertension
Definition
a potential complication of chronic alcoholism resulting in liver damage and obstruction of venous blood blow through the liver. The rising pressure in the veins causes an engorgement about the navel; the characteristic radiating pattern of veins is called a "caput medusae"
Term
Esophageal varices
Definition
bulging, engorged veins in the walls of the esophagus (often a complication of chronic alcoholism). The thin-walled, swollen veins are at a high risk of tearing, resulting in severe and/or fatal bleeding
Term
dysphagia
Definition
difficulty swallowing. May be related to GERD
Term
Crohn's Disease
Definition
a chronic inflammatory disease primarily of the bowel. Typical symptoms are abdominal pain, weight loss, diarrhea, rectal bleeding.
Term
Peritonitis
Definition
inflammation of the lining of the abdominal cavity. Symptoms include tender abdomen, rebound pain, rigidity of abdominal muscles, no bowel sounds
Term
gastroenterologist
Definition
a physician specializing in diseases of the digestive system including the esophagus, stomach, and intestines
Term
proctologist
Definition
a physician specializing in diseases of the rectum and anus
Term
Guaiac Test (Hemoccult, Fecult)
Definition
a special chemical test to identify blood in the stool (feces)
Term
Upper GI series
Definition
a series of x-rays of the esophagus and stomach and small intestines having the patient swallow a "milkshake" of barium. Used to ID problems with swallowing, stomach ulcers, and twisting of the small intestines
Term
Lower GI series
Definition
a series of X-rays using a barium enema to show the large intestine and rectum. Used to ID problems such as diverticulitis/diverticulosis, and tumors
Term
endoscopy
Definition
use of a flexible fiberoptic instrument attached to a video camera that can be used to directly visualize the esophagus, stomach, and large bowel
Term
ultrasonography (ultrasound)
Definition
a procedure using high frequency sound waves to visualize internal organs. Primary used to visualize abdominal and pelvic organs
Term
rhin/o
Definition
nose
Term
laryng/o
Definition
larynx, "voice box"
Term
trache/o
Definition
trachea, "windpipe"
Term
bronch/o
Definition
lung air passageways
Term
pne/u, -pnea
Definition
breath, air, lung
Term
pulmo/o
Definition
lung
Term
-ptysis
Definition
spitting (coughing)
Term
-plasty
Definition
reconstruction
Term
Adam's apple
Definition
laryngeal prominence, cartilage in the larynx
Term
Pneumoconiosis
Definition
literally, "an abnormal condition of dust in the lungs." Generic name for toxic particles caught in the lungs
Term
Epistaxis
Definition
nosebleed
Term
Cystic fibrosis
Definition
inheritable disease affecting mucous-producing systems of the body (lungs, digestive systems) due to body's digestive abnormalities related to abnormal mucous production
Term
Emphysema (COPD)
Definition
Chronic Obstructive Pulmonary Disease, of which emphysema is one of, results in progressive destruction of the air sacs in the lungs and loss of respiratory membrane for oxygen exchange
Term
Atelectasis
Definition
a collapsed lung, literally "an imperfect expansion" in Greek
Term
Pulmonologist
Definition
a physician specializing in diseases of the lungs
Term
Respiratory Therapist
Definition
a specially trained technician who administers, among other treatments, inhalation therapy to patients with lung disease
Term
Pulmonary angiography
Definition
special x-rays of the vessels of the lungs
Term
Laryngoscopy
Definition
visual examination of the larynx
Term
Endotracheal intubation
Definition
passing a special air-tube into the trachea so oxygen can be reliably supplied directly to the lungs without risk of inhaling vomit from the stomach
Term
nephr/o, ren/o
Definition
kidney
Term
hydro/o
Definition
water
Term
cyst/o
Definition
bladder
Term
pyel/o
Definition
renal collecting ducts
Term
ur/o, -uria
Definition
urine
Term
olig/o
Definition
scanty, less than normal
Term
-pexy
Definition
to surgically reattach, fix in normal position
Term
Nephrosis
Definition
a noninflammatory disease of the kidneys
Term
Nephrolith
Definition
a kidney stone
Term
Urethritis
Definition
inflammation of the urethra
Term
Nocturia
Definition
frequently getting up and urinating during the night
Term
Enuresis
Definition
involuntary release of urine, most often in reference to "bedwetting"
Term
Nephrologist
Definition
a physician specializing in diseases of the kidneys
Term
Urologist
Definition
a physician specializing in diseases of the lower urinary tract (bladder and urethra). Also male equivalent of gynecologist
Term
Cystoscopy
Definition
looking into the urinary bladder with a fiberoptic instrument
Term
Intravenous pyelogram
Definition
special X-rays showing the drainage pattern of the kidneys; dye opaque to x-rays inserted into bloodstream will eventually show details of the urethra, bladder, & kidneys
Term
Retrograde pyelogram
Definition
procedure where dye opaque to x-rays is flushed backwards up the urethra and bladder and up to ureters to the kidneys
Term
Voiding cystourethrogram
Definition
an imaging technique displaying the urethra and bladder while urinating
Term
Dialysis
Definition
a procedure for cleansing the blood of waste products in individuals with complete kidney failure or who have had their kidneys removed. Blood is circulated and filtered through a machine to remove waste products; blood then returned to patient
Term
Lithotripsy
Definition
crushing kidney stones with sound waves
Term
orchid/o, test/o
Definition
testes (male gonad)
Term
balan/o
Definition
head of the penis
Term
andr/o
Definition
male
Term
prostat/o
Definition
prostate
Term
vas/o
Definition
vessel, duct
Term
-rrhaphy
Definition
to suture
Term
Hypospadias
Definition
literally, "below the fleshy spike." A condition in which the external urinary meatus (opening) opens anywhere below the tip of the penis rather than at the tip
Term
Hydrocele
Definition
a fluid filled sac partially surrounding the testis
Term
Varicocele
Definition
dilated and twisted veins of the testis; sort of "hemorrhoids" of the scrotum
Term
Cryptorchidism
Definition
literally "hidden testicle." a condition of lack of descent of one or both testes into the scrotum
Term
Benign prostatic hypertrophy (BPH)
Definition
swelling of the prostate gland which surrounds the base of the male bladder and urethra causing difficulty urinating, dribbling, and bedwetting.
Term
Transurethral resection of the prostate (TURP)
Definition
the surgical cure for BPH. An instrument is inserted through the penile urethra to partially cut away the prostate to relieve obstruction of the urinary tract
Term
Prostate Specific Antigen (PSA)
Definition
PSA is a marker protein for prostate cell secretions which can be detected with a lab test. A rising PSA may be an early sign of prostate cancer.
Term
Hymen
Definition
membrane surrounding entrance of vagina
Term
Aphrodisiac
Definition
a chemical purported to stimulate sexual desire
Term
Venereal disease (VD)
Definition
a sexually transmitted infectious disease
Term
Hermaphroditism
Definition
a condition where both ovarian and testicular tissue are found in the same individual
Term
Priapism
Definition
a continuous, painful erection
Term
Satyriasis
Definition
a condition of compulsive sexual desire in men
Term
hyster/o, metr/
Definition
uterus
Term
salping/o, salpinx
Definition
uterine tube
Term
colp/o
Definition
vagina
Term
oophor/o
Definition
ovary
Term
men/o
Definition
menstruation
Term
mamm/o, mast/o
Definition
breast
Term
-pareunia, coitus
Definition
intercourse
Term
Endometriosis
Definition
a condition involving colonization of the abdominal/pelvic cavity with islands of endometrial tissue
Term
Pelvic inflammatory disease (PID)
Definition
female abdominal cavity is open to the outside world; baceria make their way up the vagina, through the uterus, and traverse through the uterine tubes which open into the abdominal cavity. Inflammation of the lining of the peritoneal cavity causes abdominal pain. Many causes, one example is gonorrheal infections.
Term
Prolapsed uterus
Definition
the uterus is almost directly above the vagina; the cervix actually extends into the upper vagina. Ligaments hold the uterus in place so that it does not prolapse or herniate into the vagina. Severe prolapse can result in the uterus protruding from the vaginal opening. Surgery is required to correct.
Term
Obstetrician
Definition
literally, "midwife" in Latin. A physician specializing in the diagnosis and management of pregnancy and delivering babies
Term
Gynecologist
Definition
a physician specializing in diseases of the female reproductive system and surgery of this area.
Term
Episiotomy
Definition
a surgical procedure cutting into the perineal area, the area between the vagina and anus in order to prevent tearing of tissues when the baby's head traverses the vaginal opening
Term
Hysterosalpingogram
Definition
special x-rays of the uterus and uterine tubes involving passing an opaque dye backwards up through the uterus to determine if the tubes are patent. Since the uterine tubes are open into the abdominal cavity, if patent, dye should spill out and be seen on the x-ray
Term
Colposcopy
Definition
using a magnifying instrument to inspect the interior of the vagina and cervix, the entrance to the uterus
Term
Dilatation and curettage (D&C)
Definition
dilating the cervix and passing instruments that enable scraping off superficial layers of the endometrium. May be done as a therapeutic abortion, or following a normal pregnancy to remove residual tissue from the uterus, or may be done as a diagnostic procedure to examing lining tissue of the uterus
Term
Mammoplasty
Definition
surgical reconstruction of the breast; may involve breast enlargement or reduction or cosmetic reconstruction after mastectomy
Term
Pudendal block
Definition
an anesthetic administered to block sensation around the lower vagina and perineum. This facilitates performing an episiotomy. (Random fact: pudendal means "that which we should be ashamed of" in Latin.
Term
-gravida
Definition
pregnancy
Term
-para
Definition
live birth
Term
part/o, toc/o
Definition
labor/birth/delivery
Term
Abruptio placentae
Definition
"breaking off" in Latin. Premature separation of a normally implanted placenta before full term. Occurs in 1% of pregnancies, but has 20-40% fetal mortality & contributes greatly to maternal mortality.
Term
Placenta previa
Definition
"leading the way" in Latin. A placenta implanted over the cervical region of the uterus blocking the entrance to the birth canal. Occurs in <1% of pregnancies but can cause significant bleeding and require a complicated delivery
Term
Eclampsia
Definition
toxemia of pregancy; a serious and life-threatening condition that may develop during pregnancy involving hypertension, convulsions, and coma.
Term
Ectopic pregnancy
Definition
"out of place" in Greek; a pregnancy implanted anywhere outside of the uterus. The Fallopian tube is the most common location, often called tubal pregnancy. Surgical emergency when it occurs; if allowed to expand, uterine tube will rupture and could case fatal hemorrhaging.
Term
Dyspareunia
Definition
painful, difficult, or abnormal intercourse
Term
oste/o
Definition
bone
Term
chondr/o
Definition
cartilage
Term
arthr/o
Definition
joint
Term
myel/o
Definition
bone marrow
Term
ten/o, tendin/o
Definition
tendon (binds muscle to bone)
Term
ligament/o
Definition
ligament (binds bone to bone)
Term
burs/o
Definition
bursa, "bag" (shock absorber between tendons and bones)
Term
my/o, myos/o
Definition
muscle
Term
-malacia
Definition
softening
Term
-porosis
Definition
porous
Term
-asthenia
Definition
weakness, loss of strength
Term
-trophy
Definition
development, stimulation, maintenance
Term
-algia, algesia
Definition
pain
Term
Arthritis
Definition
As we age, our joint tissues become less resilient to wear and tear and start to degenerate, manifesting in swelling, pain, and oftentimes, loss of mobility of joints
Term
Osteoarthritis
Definition
arthritis in both joint soft tissues and the opposing bones
Term
Rheumatoid arthritis
Definition
autoimmune disease wherein the body produces antibodies against joint tissues causing chronic inflammation resulting in severe joint damage, pain, & immobility
Term
Osteoporosis
Definition
"porous bone," common to the elderly and especially women. Hardness of bone is proportional to calcium levels; when too much is dissolved and/or not enough replaced, bones lose density and are easily fractured. Estrogen helps maintain proper calcium levels in bones, thus why osteoporosis is more common in women (due to menopause). A collapse of bony vertebrae of the spinal column results in loss of height & stooped posture. Hip fractures are common.
Term
Osteomalacia
Definition
"soft bones." If not enough calcium is deposited during early childhood development, the bones do not become rock-hard, but rubbery. Another name for this condition is "rickets." This disease was common before vitamin supplementation to milk. Classic symptom is bowed legs.
Term
Carpal tunnel syndrome
Definition
Tingling and/or pain in the thumb, index and middle fingers, along with weakness of movements of the thumb, especially grasping an object. Main nerve for finely controlled thumb movements passes through a bony/ligamentous canal on the bottom of the wrist. Repetitive flexing movements may inflame and thicken the ligament over the "tunnel" through the carpal (wrist) bones trapping and compressing the nerve
Term
Tendonitis
Definition
repeated strain on a tendon, attachment of a muscle to bone, can inflame the tendon resulting in pain and difficulty with movement involving the muscle. Tendons have poor blood supply, therefore they typically take six weeks or more to heal
Term
Rotator cuff tear
Definition
A tearing of one of the tendons involved in muscle movement surrounding the shoulder joint; hard & fast movements can tear one of these tendons, causing pain & decreased mobility of the shoulder. Surgery may be needed to repair.
Term
Bursitis
Definition
a bursa is a small, closed back with a minimum amount of lubricatory fluid that serves as a shock absorber where bones make close contact and to minimize trauma and friction where tendons cross bones and joints. Inflammation leads to pain and immobility in a joint area.
Term
Muscular dystrophy
Definition
Inherited disease; leads to degeneration and weakness of muscles manifesting at birth. Condition may be recognized very early as "floppy baby syndrome." Child is later delayed in achieving motor milestones such as crawling, walking, etc.
Term
Myasthenia gravis
Definition
"Muscular weakness, profound." Autoimmune disease that involves the production of antibodies that interfere with nerves stimulating muscle contractions. Face & neck muscles are most obviously affected, manifesting as drooping eyelids, double vision, difficulty swallowing, and general fatigue. NO actual paralysis of muscles, but rapid fatiguing of function.
Term
Lupus erythematosus
Definition
Autoimmune disease wherein the body produces antibodies against a variety of organs, especially connective tissues of skin and joints. Mild lupus may involve a distinctive butterfly-shaped rash over the nose and cheeks. Mild lupus may also involve myalagia nad arthralgia. Severe or Systemic Lupus (SLE) involves inflammation of multiple organ systems such as the heart, lungs, or kidneys.
Term
Orthopaedist
Definition
"to straighten up children." Surgical subspecialty that historically devoted its time to treating musculoskeletal deformities in children. Nowadays, they still treat children with spine and limb deformities but also adults with complicated bone fractures, damaged tendons or ligaments, or needing surgery to replace a damaged hip or knee joint
Term
Rheumatologist
Definition
"to study the flux of fluids." Physician who treats joint diseases such as the various forms of arthritis; also evaluates and treats osteoporosis, tendonitis, gout, and lupus among many other chronic musculoskeletal pain disorders.
Term
Osteopath/Osteopathic Physician (D.O.)
Definition
A D.O. is not a physician; they make use of osteopathic manipulation (bones, ligaments, joints) along with medication, surgery, and all other medical treatments used by MD physicians. Preventative care is a large part of this kind of care.
Term
Podiatrists
Definition
"foot doctors." Surgical subspecialists in diseases and structural problems of the feet. Provide care for corns, calluses, ingrown toenails, and heel spurs; also treat foot and ankle injuries, deformities, and diseases. Also can prescribe special shoes and inserts to treat chronic foot pain and walking problems
Term
Physical therapist
Definition
rehab specialists treating a multitude of medical problems including patients recovering from joint surgery, limb amputation, a stroke, heart attack, and suffering with chronic neuromuscular diseases
Term
Arthroscopy
Definition
a fiberoptic instrument is introduced into a joint cavity in order to visualize surfaces of bones entering into a joint, find tears in internal joint structures and evaluate sources of inflammation
Term
Bone scan
Definition
a radioactive element in very small amounts is introduced into the blood stream. The specially selected element accumulates in bone and using a much more sophisticated version of the old Geiger Counter instrument, the distribution of the element is used to diagnore potential bone tumors & other bone pathologies
Term
Electromyography
Definition
a recording of muscle electrical activity. fine needles are introduced into muscles in order to make recordings of contractile activity. Useful in evaluating causes of paralysis, diagnosing muscular dystrophy, and other neuromuscular disorders
Term
Muscle biopsy
Definition
cutting out a small tissue sample of muscle in order to examine it under a microscope. Useful in diagnosing muscular dystrophy and other neuromuscular disorders
Term
Malignant
Definition
literally "evil." a tumor/cancer that is invasive (spreads into surrounding organs) and metastasizing (traveling to other areas of the body to form new tumors). Invasiveness results in penetration, compression, and destruction of surrounding tissue causing such problems as loss of organ function, difficulty breathing, obstruction, possible catastrophic bleeding and severe pain
Term
Benign
Definition
non-threatening tumor/cancer
Term
Carcinoma
Definition
most common form of cancer. Develops from sheets of cells that cover a surface (example: skin) or line a body cavity (lining of stomach).
Term
Sarcoma
Definition
rare form of cancer arising from connective and supportive tissues. Examples: bone, fat, muscle, and other connective tissues
Term
Grading and staging
Definition
In reference to tumors; Grading: Grade I to Grade IV, used to describe tissue differentiation, Tumors that are well differentiated (still looks like original source tissue) usually have a good clinical outcome.
Staging: uses T, N, M in conjunction with Grading. "T" indicates size of tumor, "N" whether the cancer has spread into lymph nodes, "M" whether cancer cells have metastasized into other organs and areas.
Term
Causes of cancer
Definition
1) Any injury to DNA may result in the loss of cell cycle control, leading to uninhibited cell division. 2) Carcinogens (known cancer causing agents, including radiation, chemicals, drugs, and viruses) 3) Environmental chemicals found in tobacco smoke, automotive exhaust, toxic emissions from factories and asbestos
Term
Tumor Markers
Definition
substances produced by tumors or the body's response to presence of a tumor
Term
Radiosensitive
Definition
cancer degenerates in response to radiation
Term
Radioresistant
Definition
cancer that has a partial response to radiation or doesn't respond at all
Term
Fractionation
Definition
a treatment radiation dose is broken down into multiple exposures over several weeks to minimize side effects
Term
Chemotheraphy
Definition
wide category of anti-cancer drugs; works by systemically killing any rapidly dividing cell, which causes many side effects such as hair loss, nausea/heartburn from death of stomach lining cells, fatigue and anemia from myelosuppression (suppression of bone marrow cells). Also at high risk of infection due to death of leucocytes
Term
Adjuvant therapy
Definition
surgery with follow up such as chemo, radiation therapy, or both
Term
cryosurgery
Definition
destroying malignant tissue by freezing it with a cold probe. often used for soft tissues like liver or kidney
Term
Fulguration
Definition
"lightning" in Latin. Malignant tissue is destroyed with an electrocautery instrument (electric current)
Term
Excisional biopsy
Definition
simultaneous tissue sampling and removal of a tumor with a safe margin of normal tissue. Frequently done with suspicious skin lesions
Term
Resect
Definition
to cut and remove a segment of an organ containing a tumor
Term
En bloc resection
Definition
removal of the tumor and any surrounding organs or tissues that may be involved. often necessary for large abdominal sarcomas
Term
Palliative treatment
Definition
gives relief of symptoms of cancer, but does not cure and is reserved for advanced malignancy
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