Keratoacanthoma

A symmetric crater in the skin filled with keratin (really low power, slide held over condenser)

With peripheral 'lipping' of keratinocytes

Usually in elderly, face-head-neck region, the crater is visible on gross. It is the smooth roundish outline of the lesion that distinguishes it from a squamous carcinoma (plus that there's no dysplasia in spite of cell enlargement towards the center)

Papillary carcinoma

Follicular variant

Finding one odd looking focus in a nodular goiter

Vague papillary-follicular architecture

Blank, overlapping nuclei; lining follicles with scalloped colloid

Cellular details; blank chromatin, crowding, but forming little follicles

Encapsulated papillary

Hepatitis C with cirrhosis

Cirrhosis in a patient with Hepatitis C

CT

FNAC - ? hepatocytes

Cirrhotic nodules with dense lymphoid infiltrate

Apoptotic cells

Steatosis

Basal cell carcinoma

Growth over cheeks; palisading and retraction artifacts; small round cells in nodules