Fig. 1

Grossly after opening of the segment of rectum, there was an exophytic mass with lobulated surface (a). On microscopic low power, a submucosal neoplasm arranged in sheets, alveolar and rhabdoid patterns was seen (b). The neoplastic cells were pleomorphic having abundant eosinophilic cytoplasm, enlarged hyperchromatic eccentric nuclei and prominent nucleoli (c). IHC stains were positive for PAX8 (d)