# The need for vigilance: melioidosis mimicking tuberculosis

**Authors:** Sushree Sarathi, Pragya Agarwala, Padma Das, Vinay R. Pandit

PMC · DOI: 10.1128/asmcr.00018-25 · ASM Case Reports · 2025-07-31

## TL;DR

A case of melioidosis mistaken for tuberculosis highlights the need for accurate diagnosis in endemic regions.

## Contribution

The paper presents a clinical case emphasizing the importance of considering melioidosis in differential diagnosis.

## Key findings

- Melioidosis was misdiagnosed as tuberculosis despite anti-tuberculosis treatment failing.
- B. pseudomallei was identified through culture and biochemical tests.
- The patient improved after treatment with ceftazidime and cotrimoxazole.

## Abstract

Melioidosis, caused by Burkholderia pseudomallei, is often misdiagnosed due to its clinical similarity with tuberculosis and broad-spectrum clinical manifestations. The infection is particularly prevalent in endemic areas, and a high index of suspicion is required for timely diagnosis and treatment.

We report a 50-year-old male construction worker from central India initially diagnosed with presumptive smear-negative tubercular lymphadenitis. Despite anti-tuberculosis treatment, his condition worsened, prompting further investigation. Culture and biochemical tests identified B. pseudomallei, confirming melioidosis. The patient was started on intravenous ceftazidime and later transitioned to oral cotrimoxazole. He showed significant clinical improvement after treatment.

This case underscores the importance of considering melioidosis in the differential diagnosis of patients with lymphadenitis, particularly in areas where the pathogen is endemic. Timely identification and appropriate treatment are crucial for effective management. Heightened awareness of melioidosis is essential to avoid misdiagnosis and ensure optimal outcomes for patients.

## Linked entities

- **Chemicals:** ceftazidime (PubChem CID 5481173), cotrimoxazole (PubChem CID 358641)
- **Diseases:** melioidosis (MONDO:0017775), tuberculosis (MONDO:0018076), lymphadenitis (MONDO:0002052)
- **Species:** Burkholderia pseudomallei (taxon 28450)

## Full-text entities

- **Diseases:** infection (MESH:D007239), Melioidosis (MESH:D008554), lymphadenitis (MESH:D008199), tuberculosis (MESH:D014376)
- **Chemicals:** cotrimoxazole (MESH:D015662), ceftazidime (MESH:D002442)
- **Species:** Burkholderia pseudomallei (species) [taxon 28450], Homo sapiens (human, species) [taxon 9606]

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC12530253/full.md

## Figures

4 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12530253/full.md

## References

13 references — full list in the complete paper: https://tomesphere.com/paper/PMC12530253/full.md

---
Source: https://tomesphere.com/paper/PMC12530253