Case Report

Poorly Differentiated Neuroendocrine Tumor of the Rectum Coexistent with Giant Rectal Villous Adenoma Presenting as McKittrick-Wheelock Syndrome

Figure 4

(a) Microscopic appearance of rectum mass biopsy revealing villous adenoma with focal high-grade dysplasia (H&E, ×20). (b) Microscopic appearance of liver mass biopsy revealing metastatic poorly differentiated neuroendocrine carcinoma of rectum (H&E, ×20).
(a)
(b)