# A Rare Case of Terminal Ileum Gastrointestinal Stromal Tumor in a Young Caucasian Adult

## TL;DR

A young adult with no prior health issues was diagnosed with a rare gastrointestinal tumor in the terminal ileum, highlighting the need for careful evaluation of unusual gastrointestinal symptoms.

## Contribution

This paper presents a rare case of terminal ileum GIST in a young Caucasian adult, emphasizing diagnostic challenges and multidisciplinary management.

## Key findings

- A 7.4 cm pelvic mass in the terminal ileum was identified in a young male with gastrointestinal symptoms.
- Histopathological analysis confirmed a low-grade mixed-type GIST following surgical resection.
- The case highlights the importance of thorough evaluation for atypical gastrointestinal bleeding in young patients.

## Abstract

Gastrointestinal stromal tumors (GISTs) are rare in young individuals and typically affect older adults. We present the case of a previously healthy male who presented with severe hematochezia, fatigue, and dizziness. Colonoscopy did not demonstrate any colonic mass. CT of the pelvis with contrast revealed a pelvic mass measuring 7.4 cm. Biopsy confirmed a low-grade mixed-type GIST of the terminal ileum. Surgical resection was successfully performed. Histopathological analysis further characterized the tumor, and the patient was discharged with consideration of adjuvant imatinib therapy. This case underscores the importance of thorough diagnostic evaluation and multidisciplinary management for atypical presentations of gastrointestinal bleeding in young patients.