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Patients who are undergoing extensive antibiotic treatment may develop inflammation and pseudomembranes of the colonic mucosa. What infectious agent will the pathologist identify?

G cells are those that secrete

Nail clippings are typically received for _____________.

You receive at the bench a segmentectomy specimen involving only the functional bare area of the liver.  Which segments have you received? 

Cirrhosis of the liver can be the result from sarcoidosis.

Dolly was diagnosed was squamous cell carcinoma of the vaginal canal.  The cervix and entire vaginal canal are removed and submitted to the pathology gross room. At the bench the PA notes that the mass is 0.3cm from the distal resection margin, and 9.7cm from the proximal resection margin.  Based on these finds, which of the following structures could potential be involved by the pathology?

Which of the following would be an identifiable characteristic of the transition between jejunum and ileum.

A 57-year-old woman noticed red pruritic lesion on her left labium.  The biopsy shows large atypical cells lying singly or in small clusters within epidermis.  These cells are positive for cytokeratin and negative for melanoma markers.  What is the most likely diagnosis?

The Surface Mucus cells of the stomach are represented in the image below by which letter?

You receive an appendectomy for acute appendicitis. Which of the following is NOT in your grossing procedure?