Giant Fibrovascular Polyp – Amending Knowledge About a Rare Entity from a Known Benign to an Unknown Malignant Behavior

Abstract

A giant fibrovascular polyp is a non-epithelial tumor of esophagus. It usually arises from the proximal esophagus behind the cricoid cartilage from the upper esophageal sphincter. These polyps were previously considered as benign non neoplastic intraluminal masses. However, with continuous studies and advanced testing by FISH (Fluorescence in situ hybridization) done in multiple cases worldwide, it has now been established that this entity is synonymous with well differentiated liposarcoma. Being proven to be a malignant entity now, care should be taken while treating such cases, as these will require an adequate resection margin during its surgical removal.

This case report aims at enlightening the treating clinicians along with reporting radiologists and pathologists about this rare entity and to emphasize on correct management for patients’ benefit as it is known for recurrence and dedifferentiation. Also, being a sarcomatous lesion, it may lead to local and distant spread and prove fatal to the patient.

Keywords: Giant fibrovascular polyp, liposarcoma, esophageal polyp