CTICasesPulmonary mycobacterial spindle cell pseudotumor
[...]. Pulmonary mycobacterial spindle cell pseudotumor. CTICases. Published October 25, 2018. https://cticases.com/c/hq5hr
Imaging findings
Chest CT shows an endoluminal soft tissue mass in the bronchus intermedius causing complete obstruction and collapse of the right middle lobe. Histopathology revealed a spindle cell proliferation rich in acid-fast bacilli, confirming a mycobacterial spindle cell pseudotumor.
Key takeaways
Mycobacterial spindle cell pseudotumor is a rare, tumor-like reaction to atypical mycobacteria, typically occurring in immunocompromised patients (such as those with HIV). It pathologically mimics a spindle cell neoplasm but is diagnostic on acid-fast staining.
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