# Unexpected Digit: Isolated Acrometastasis to the Fifth Finger in Advanced Lung Cancer

## TL;DR

This paper reports a rare case of lung cancer spreading to the fifth finger, highlighting treatment strategies and the need for a multidisciplinary approach.

## Contribution

The novelty lies in presenting an isolated acrometastasis case without additional bone metastases in advanced lung cancer.

## Key findings

- Isolated acrometastasis occurred in the fifth finger without other bone metastases in a stage IV lung cancer patient.
- Multidisciplinary management combining surgery, radiation, and systemic treatment is emphasized for such cases.
- The paper discusses potential mechanisms behind acrometastatic spread in lung cancer.

## Abstract

Acrometastasis is a rare manifestation of metastatic disease that affects the distal extremities and can occur as a complication of non-small-cell lung cancer. It is often associated with advanced disease and may coincide with other skeletal or systemic metastases. Management options typically include a combination of surgical intervention, radiation therapy, and systemic treatment. This report presents a case of an isolated acrometastatic lesion in the fifth digit of a patient with stage IV squamous cell carcinoma, without evidence of additional metastatic bone involvement. We explore diagnostic and therapeutic strategies for such presentations and emphasize the importance of a multidisciplinary approach in optimizing patient care. We also address the underlying pathophysiology and potential mechanisms contributing to acrometastatic spread.