Study Guide Flashcards
Which epithelial neoplasms require histo to determine bio behavior
Mammary tumor
Hepatocellular tumor
Most common tumor in dog
Cutaneous adnexal neoplasms?
Two Types of perianal neoplasms
Cytology vs bio behavior
Cirumanal/perianal gland (look like hepatocytes) benign androgen driven
Anal sac adenocarcioma via appocrine gland (look neuroendocrine) malignant behavior
Two defining features of thyroid neoplasms
Colloid and tyrosine granules
Thyroid tumors in cats
Benign and functional
Thyroid tumors in dogs
Non functional and malignant
Breed overrepresented for nonchromaffin chemoreceptor tumors
Brachycephalic
Neuroendocrine tumor that can be incidental and often seen with other concurrent neoplasms
Pheochromocytoma
Behavior of Apocrine gland tumor in ear of cat vs dog
Cat most malignant
Dog 50/50
Type of inflammation often present with SCC
Neutrophillic
Which mesynchimal tumors require histo to set bio behavior
Muscle (leiomyoma/sarcoma, myxoma/sarcoma)
cartilage (chondroma/sarcoma)
Spread of mesynchimal tumors (sarcomas)
Hematongeous
What masses can fell like lipoma
Mast cell tumors and perivascular wall tumors
Cell population that may be found in injection site sarcomas
Lymphocytes
What other tumor must synovial cell sarcoma be distinguished from
Histiocytic sarcoma
Lipoma sig site bio
Dog trunk proximal limbs
Liposarcoma sig site bio
Rate older dogs centrum and extremities
Equine sarcoid sig site bio
Common, ass w/bovine papilloma virus HISTO DXN
Perivascular wall tumors sig site bio
Common in dogs with predilection for extremities
Fibrosarcoma sig site bio
No inflammation
Vaccine associated in cats
infiltrating
Slow to met
Hemangiosarcoma sig site bio
LArge dogs
Spleen liver r atrium retroperitoneal bone dermis
Synovial cell sarcoma sig site bio
Uncommon large breed DOG
Elbow stifle shoulder
Locally invasive may met
Osteosarcoma sig site bio
Large breed
Away elbow towards knee
Metaphasis
Rapid hematogenous spread
6 categories of round cell tumors
Lymphoma Plasma cell Histiocytoma/histiosytic sarcima TVT Mast cell Melanoma
Defining feature of plasma cells
Perineuclear clear zone (golgi)
Round eccentric neucleus
Multineucleated
Anisokarysosos
Histyocytoma vs histiocytic sarcoma
Hiatocytoma: young dog pink hairless head trunk bending regress on own
Histiocytic sarcoma: Bermese golden flat coated retriever spleen skin LN lung BM meningies
