# Unusual presentation of metastatic melanoma

## TL;DR

A rare case of melanoma affecting both the colon and bladder is reported, highlighting the need for better diagnostic and treatment guidelines.

## Contribution

The paper presents a unique clinical case to emphasize the rarity and challenges of diagnosing metastatic melanoma in atypical locations.

## Key findings

- Melanoma involving both the colon and urinary bladder is exceptionally rare and difficult to diagnose.
- The case involved a 55-year-old female presenting with hematuria as the primary symptom.
- Standardized protocols and clinical trials are urgently needed for managing this rare condition.

## Abstract

Urinary bladder with concurrent colonic melanoma is an exceptionally uncommon occurrence, posing a diagnostic challenge for clinicians. While rare, it warrants consideration as a potential differential diagnosis, particularly in patients without a history of melanoma who present with persistent hematuria due to its aggressive nature. We present a case of a 55-year-old female with malignant melanoma involving the colon and urinary bladder presenting with hematuria. Given the scarcity of cases and variability in clinical management approaches, there is a pressing need for research efforts to establish standardized protocols and conduct trials to guide clinical practice in this rare entity.