Extrapulmonary Small Cell Carcinoma of the Anal Canal: A Case Report and Review of the Literature
Figure 1
Histologic section of the inguinal lymph node (a) and anal canal lesion (b) demonstrating small to intermediate malignant cells with little cytoplasm, nuclear molding, necrosis, and apoptosis. Both showed positive immunoreactivity for keratin AE1/3, synaptophysin and were negative for p63 (H&E 400x).
