adenocarcinoma

75-year-old male with abdominal pain and signs of acute appendicitis.

Procedure: Open appendectomy.

Gross: 11 cm. long apendix with dilated distal segment and solid proximal segment.

55-year-old female with jaundice. Diagnostic radiology reveals double duct sign, irregular pancreatic head, ampullary mass, distal bile duct obstruction.

55-year-old female with jaundice. Diagnostic radiology reveals double duct sign, irregular pancreatic head, ampullary mass, distal bile duct obstruction.

22-year-old female with gross hematuria.

Cystoscopic exam shows a very large mass at the dome of the bladder.

An elderly white man with a growing mass in his eyelid.

Procedure: excisional biopsy.

Frozen section consultation diagnosis: mucinous carcinoma, R/O metastatic colon adenocarcinoma.

Mirco: se

This is a papillary clear cell carcinoma with a high degree of vascularity. The CD-10, vimentin, cytokeratin (AE 1/3), and EMA all stain positively.