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Ross S3 WBC 1
Arya
22
Pathology
Professional
11/10/2009

Additional Pathology Flashcards

 


 

Cards

Term
A decrease in circulating WBCs
Definition
Leukopenia
Term
A decrease in neutrophils
Definition
Neutropenia or Granulocytopenia
Term
A decrease in lymphocytes
Definition
Lymphocytopenia
Term
List 6 causes of Neutropenia
Definition

1. Inadequte/ineffective erythropoiesis

2. DNA problems

3. Increased destruction

4. Spenic sequestration

5. Increased peripheral utilization (bacterial)

6. Drugs (sulfonamides)

Term
A patient arrives with malaise, chills, fever, weakness, fatigue and with ulcers in his mouth. You also notice that he has swollen lymph nodes. What do you suspect is the problem?
Definition
Neutropenia. Note that this can progress to agranulocytosis which ends in death.
Term

What sounds better to you?

 

ANC < 1000 or ANC < 500?

Definition
An absolute neutrophil count below 1000 is worrisome. An ANC below 500 is an emergency.
Term
What is botryomycosis?
Definition
Botryomycosis is essentially an uninhibited bacterial growth where they grow in colonies with no WBC response.
Term
What could be some causes of lymphopenia?
Definition
Corticosteroids, cyclophosphamide, SLE, Di George, AIDS, SCID, Cushings
Term
Endotoxemia, acute infection, hypoxia, corticosteroids, epi, inflammation and myeloproliferative disorders can all lead to what?
Definition
Neutrophilic leukocytosis
Term
A 55 year old chronic smoker comes in with an acute MI. Hb and platelets are normal. WBC 15,500. WBC Diff: 80% neutrophils, 10% band neutrophils, 7% lymphocytes, 3% reactive lymphocytes. What is it called when you see these blood levels?
Definition
Neutrophilia aka Neutrophilic leukocytosis. Note that the WBC count, neutrophil percentage, and band neutrophil percentages are all INCREASED.
Term
[image]
Definition
Neutrophilic Leukocytosis
Term
[image]
Definition
Toxic Granulation. The Neutrophil on the right is mature. You will see in the cytoplasm all of the toxic granules. The neut on the left is a band form. It is becoming mature and the nucleus is more curved rather than lobed.
Term

This is seen in patients suffering from sepsis, acute appendicitis (ruptured), whooping cough, mono, or severe hemorrhage.

 

Leukocyte Count > 30,000

Benign

Definition
Leukemoid Reaction, also goes by Transient Myeloproliferative Disorder
Term
What differential do you do on a WBC count to determine if the patient has a reactive process or chronic myelonegous leukemia?
Definition

Leukocyte Alkaline Phosphates (LAP) score.

 

A low score in most things is life sucks, so it does here too. A low LAP score means cancer. A high score is just a leukemoid reaction.

Term
[image]
Definition

Auer rods, better not even THINK about anything but AML.

 

Don't forget blast count will be >20%, usually see hepatosplenomegaly, and bone pain.

Term
Terd Ferguson enters your office in a fit of madness, rattling on about how he's not sure if his really big hat has Acute or Chronic Leukemia. How do you explain the differentiation between the two?
Definition
Acute have have onset with aggressive course, and usually show very immature cells (Blast count > 20%). Chronic have slow onset (hence occur later in life) and usually show more mature cells in BM and periphery (Blasts < 20%).
Term
A firstie in obvious dire concern confronts you regarding his recent lapse of memory in genetics. He desperately pleads for you to share your infinite wisdom and inform him a genetic cause of Acute Promyelocytic Leukemia (and heck, while you're at it, look really good and tell him the FAB classification along with it).
Definition
t(15:17) AML M3
Term
During lecture, Dr. Arya shoves a microphone in your face and asks you the characteristic cells that are found in AML M3. You hesitate at first, but manage to get the words out.

She then follows up saying the patient an increase of D-Dimers and peripheral bleeding. What common occurence are they suffering from?
Definition
Dr. Arya was trying to remind the class about Faggot cells, promyelocytes with many Auer rods and cytoplasmic granules.

The patient is experience DIC!
Term
If the question stem says AML, what two CD markers does Arya desperately want you to remember?
Definition
CD13 and CD33

Bless those lil three's
Term
What would you treat a patient with AML M3 with? with hopes of doing what?
Definition
Treat with ATRA (all-trans retinoic acid) to overcome the maturation block and cause maturation.
Term
What type of ALL has the best prognosis? And what marker will it be positive for?

Which has the worst?
Definition
Early pre B-cell has the best prognosis; CD10

T-ALL has the worst prognosis!
Term
[image]
Definition
Typical ALL slide.  Notice the Lymphoblasts with condensed nuclear chromatin, small nucleoli, and scant agranular cytoplasm.
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