Case Illustration
The 75-year-old female presented with nodul in the perianal region that
has been present for several months. DX was atheroma and excision of the
tumor was performed. Pathology report confirmed MIXED
ADENONEUROENDOCRINE CARCINOMA-MANEC. Additional immunohistochemistry
analysis was performed on the examined sample: Synaptophysin-positive,
CK 20-positive, CK AE1 / AE3-positive, CK7-negative, CA 125-negative.
(Figure 1 )