Shared Flashcard Set

Details

AHT 113 Neoplasia
Cancers
35
Veterinary Medicine
Not Applicable
03/15/2009

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Cards

Term
What is chemotherapy?
Definition
The use of chemicals to selectively destroy cancerous tissue.
Term
What is a lymphoma/lymphosarcoma?
Definition
Colonal expansion of malignant lymphocytes in lymphoid tissues such as bone marrow, lymph nodes, and visceral organs.
Term
What percent of cats with lymphoma also have FeLV and/or FIV?
Definition
70%
Term
What causes lymphoma in dogs?
Definition
Idiopathic
Term
What is the remission rate for dogs and for cats on chemo for lymphoma?
Definition
Dogs:80-90%
Cats:20%
Term
What is a contributing factor for mammary neoplasia?
Definition
Hormonal influences on the mammary tissue.
Term
What percentage of mammary tumors are malignant in Queens and Bitches?
Definition
Queens: most are malignant.
Bitches: about 50%
Term
What is a mast cell tumor?
Definition
Tumor arising from mast cells.
Term
What does a mast cell tumor usually look like?
Definition
A dome shaped, alopecic mass.
Term
What secondary sign is often seen with mast cell tumors?
Definition
Stomach uleration
Term
What type of tumor can mast cell tumors mimic?
Definition
Subcutaneous lipomas
Term
What is squamous cell carcinoma?
Definition
Malignant tumor of squamous epithelium.
Term
What are 2 causes of squamous cell carcinomas?
Definition
Lack of pigment (pink skinned animals), UV light/sun exposure.
Term
What 2 areas of the skin are most commonly effected with squamous cell carcinoma?
Definition
The nose and ears.
Term
What are 3 clinical signs of squamous cell carcinoma?
Definition
Ulcers, crusts or masses on the skin.
Term
What is a melanoma?
Definition
Tumor of pigment producing cells.
Term
What are 4 signs related to oral melanomas?
Definition
ptyalism, halitosis, dysphagia, and weight loss.
Term
What are 2 treatments for melanoma?
Definition
Surgical excision and adjunctive radiation.
Term
What is papillomatosis?
Definition
Canine oral warts.
Term
What causes papillomatosis?
Definition
The papilloma virus
Term
When would surgery be attempted for papillomatosis?
Definition
If it blocks the airway or causes dysphagia.
Term
What is a perianal gland tumor?
Definition
Tumor of glands that encircle the anus. NOT THE ANAL GLANDS
Term
What are 3 treatments for perianal gland tumors?
Definition
Castration, surgical excision, adjunctive radiation.
Term
What is a sertoli cell tumor?
Definition
Testicular tumors of the sertoli cells.
Term
What are 2 clinical signs of sertoli cell tumors?
Definition
unilateral large testicles and feminization.
Term
What is a lipoma?
Definition
Benign tumor of adipose tissue.
Term
What causes lipomas?
Definition
Idiopathic
Term
How are lipomas diagnosed?
Definition
Fine needle aspirate
Term
When would surgery be preformed on a lipoma?
Definition
If it impedes movement.
Term
What is an epulis?
Definition
Tumor of the peridontal connective tissue.
Term
What are 4 clinical signs of an epulis?
Definition
Can be asymptomatic, halitosis, dysphagia, ptyalism.
Term
What is the treatment for epuli?
Definition
Surgical removal.
Term
What is a histiocytoma?
Definition
Benign tumor of monocytes/macrophages/histeocytes.
Term
What does a histiocytoma look like?
Definition
A small, strawberry colored, firm, alopecic mass.
Term
What type of dog is usually effected by histiocytomas?
Definition
Young dogs.
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