CTICasesPhanerochaete Sordida Infection with Bird's Nest Sign
Imaging findings
CT in a neutropenic AML patient shows bilateral lung masses, with the right lower lobe lesion demonstrating a classic 'bird's nest' sign of a thick consolidative rind surrounding internal mesh-like lines. Culture grew the rare fungus Phanerochaete sordida.
Key takeaways
Phanerochaete sordida is a rare filamentous basidiomycete fungus that can cause opportunistic infections in immunocompromised hosts. In the lungs, it can present as an invasive mass with a 'bird's nest' sign, resembling mucormycosis.
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