# Single-digit clubbing revealing an occult fracture

## TL;DR

A rare case of toe clubbing was found to be caused by an undetected fracture.

## Contribution

This case report adds an occult fracture as a novel cause of single-digit clubbing.

## Key findings

- Single-digit clubbing can be caused by an occult fracture.
- The case involved a toe with solitary digital clubbing due to an underlying fracture.

## Abstract

Single-digit clubbing is a rare physical sign, with only a few cases reported in the literature. The causes of single-digit clubbing are myxoid cyst, osteoid osteoma, enchondromas, myxochondromas, superficial acral fibromyxoma, sarcoidosis, median, and ulnar nerve injury. We hereby report a case of solitary digital clubbing of the toe due to an underlying occult fracture.