Philippine Journal of Pathology 2024;9(2):65-68

doi:https://doi.org/10.21141/PJP.2024.11

Mucosal schwann cell hamartoma mimicking a colon polyp: Pathologic insights

Marissa Krizelda Santos 1 ; Kathleen Adryon Tan 1

Affiliations

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Keywords

Colorectal

Country

Philippines

Language

English

Abstract

A rectal polyp is found during a routine colonoscopy of a 34-year-old male. He has no known significant family history of inherited disorder. Endoscopic findings reveal a 5-mm JNET 2A polyp in the rectum which is removed via forceps polypectomy. The microscopic examination shows a polypoid colonic mucosa with fairly circumscribed proliferation of low-grade spindle cells in the lamina propria, separating the crypts. The individual spindle cells are uniform in size with abundant eosinophilic cytoplasm. No mitotic figures, nuclear atypia, pleomorphism and necrosis are noted. Likewise, the crypts do not exhibit serrated architecture.