# Basosquamous Carcinoma: A Rare Entity With an Atypical Presentation

## TL;DR

This paper presents a rare case of basosquamous carcinoma, a type of skin cancer, found on the fingertip and diagnosed through histology.

## Contribution

The novelty lies in reporting a rare case with an unusual location on the finger pulp.

## Key findings

- The case was confirmed as basosquamous carcinoma through histological examination.
- No locoregional or general extension of the tumor was found.
- Surgical resection was performed as the treatment.

## Abstract

Basosquamous carcinoma (BSC) is a rare entity of basal cell carcinomas. It is described as being nosologically at the border between a squamous cell carcinoma and a basal cell carcinoma, thus sharing characteristics of both entities. The frequency of this pathology remains low with a few cases reported in the literature. We report the observation of a basosquamous carcinoma with a particular topography on the pulp of the left fifth finger. A histological examination confirmed the diagnosis. Locoregional and general extension studies were negative. Management consisted of surgical resection.