# Reactive Angioendotheliomatosis in Association with Ulcerative Colitis

## TL;DR

This paper reports a rare case of a benign skin condition called reactive angioendotheliomatosis in a patient with ulcerative colitis.

## Contribution

The novelty is the first documented association between reactive angioendotheliomatosis and ulcerative colitis.

## Key findings

- A 46-year-old man with a history of ulcerative colitis was diagnosed with reactive angioendotheliomatosis.
- Histopathology and immunostaining confirmed the presence of reactive angioendotheliomatosis.
- This case suggests a possible link between ulcerative colitis and reactive angioendotheliomatosis.

## Abstract

Reactive angioendotheliomatosis (RAE) is a rare benign skin condition characterized histologically by the proliferation of dermal vessels and endothelial cells that occurs secondary to an underlying disease such as infections or lymphoproliferative disorders. To our knowledge, no previous cases of RAE associated with ulcerative colitis (UC) were reported in the literature. Therefore, we report the case of a 46-year-old man with a history of UC presenting with RAE confirmed on histopathology and immunostaining.