IHC Markers

Question 1

What are the IHC markers for Melanoma?

Answer 1

Melan-A, S-100, PNL2, tyrosinase

Question 2

IHC marker for Thyroid carcinoma (epithelial)

Answer 2

Thyroglobulin (+)

Question 3

IHC marker for Thyroid carcinoma (c-cell)

Answer 3

Synaptophysin (+) chromogranin (+) thyroglobulin (-)

Question 4

IHC markers for MCT?

Answer 4

Vimentin (+)
Tryptase and CD117 (KIT) (+)
+/- chymase, MCP-1, and IL-8 (+)

Question 5

Which IHC stain can differentiate between canine urinary bladder transitional cell carcinoma and other carcinomas?

Answer 5

Uroplakin III

Question 6

Which IHC marker can confirm a diagnosis of hemophagocytic histiocytic sarcoma?

Answer 6

CD11d

Question 7

Which IHC markers are positive with hemangiosacoma?

Answer 7

Factor 8 (vWF), CD31

Question 8

GIST IHC markers?

Answer 8

CD117 (KIT), CD34, DOG-1, and S-100

Question 9

Which IHC markers are used to distinguish pheochromocytoma from adrenocortical carcinoma?

Answer 9

chromogranin A and synaptophysin

Question 10

Markers for Feline progressive histiocytosis?

Answer 10

CD1a, CD11c/CD18, CD5, Iba-1, CD204