# Pulmonary Actinomycosis Mimicking Pulmonary Tuberculosis: A Diagnostic Challenge

## TL;DR

This paper discusses a rare case where a lung infection was mistaken for tuberculosis, emphasizing the need for accurate diagnostic methods.

## Contribution

The paper presents a case highlighting the diagnostic challenge of distinguishing pulmonary actinomycosis from tuberculosis.

## Key findings

- Pulmonary actinomycosis can closely resemble tuberculosis in symptoms and imaging.
- Histopathological examination and anaerobic culture are crucial for accurate diagnosis when tuberculosis treatment fails.

## Abstract

Pulmonary actinomycosis is a rare chronic infection that can closely mimic pulmonary tuberculosis (PTB) in both clinical presentation and radiological appearance, particularly in tuberculosis-endemic regions. Delayed or missed diagnosis may result in prolonged inappropriate therapy and disease progression.

We report a case of pulmonary actinomycosis in a diabetic patient initially treated empirically for pulmonary tuberculosis, highlighting the importance of histopathological examination and anaerobic culture in patients with poor response to anti-tubercular therapy.