{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,4]],"date-time":"2026-03-04T17:20:37Z","timestamp":1772644837724,"version":"3.50.1"},"reference-count":12,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2026,2,16]]},"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:p>Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS), is a rare subtype of non-Hodgkin lymphoma that frequently presents with multiorgan involvement. We report a diagnostically challenging case of a female in her late 40s presenting with otomastoiditis, brain abscess and bilateral cavitary lung lesions. A positive serum galactomannan led to empiric antifungal therapy for presumed disseminated aspergillosis. However, tissue biopsies were negative for infection, and histopathology ultimately confirmed PTCL-NOS. This case highlights a rare presentation of PTCL-NOS, involving both the lungs and central nervous system, mimicking invasive fungal disease.<\/jats:p>","DOI":"10.1136\/bcr-2025-268805","type":"journal-article","created":{"date-parts":[[2026,3,4]],"date-time":"2026-03-04T13:40:21Z","timestamp":1772631621000},"page":"e268805","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Peripheral T-cell lymphoma-NOS presenting with cavitary lung lesions mimicking invasive aspergillosis"],"prefix":"10.1136","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5929-0303","authenticated-orcid":false,"given":"Jose","family":"Lopez Ventosa","sequence":"first","affiliation":[{"name":"Internal Medicine, Universidad de Puerto Rico Recinto de Ciencias M\u00e9dicas, San Juan, Puerto Rico, 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