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Not all that shines is cancer: pulmonary cryptococcosis mimicking lymphoma in [(18)] F fluoro-2-deoxy-D-glucose positron emission tomography / Nem tudo o que brilha é câncer: criptococose pulmonar mimetizando linfoma na tomografia por emissão de pósitrons com [(18)] F fluoro-2-desoxi-D-glicose
Hamerschlak, Nelson; Pasternak, Jacyr; Wagner, Jairo; Perini, Guilherme Fleury.
  • Hamerschlak, Nelson; Hospital Israelita Albert Einstein. São Paulo. BR
  • Pasternak, Jacyr; Hospital Israelita Albert Einstein. São Paulo. BR
  • Wagner, Jairo; Hospital Israelita Albert Einstein. São Paulo. BR
  • Perini, Guilherme Fleury; Hospital Israelita Albert Einstein. São Paulo. BR
Einstein (Säo Paulo) ; 10(4): 502-504, Oct.-Dec. 2012. ilus
Article in English | LILACS | ID: lil-662477
ABSTRACT
We report of a case of pulmonary cryptococcosis mimicking lymphoma in a positron emission tomography (FDG-PET) scan. A 62-year old man with diffuse large B-cell lymphoma had complete resolution of abdominal and pulmonary lesions after three cycles of rituximab-based chemotherapy (R-CHOP). However, FDG-PET showed new pulmonary nodules, suggesting active lymphoma. Chronic inflammatory granuloma was seen in the histopathological exam, with round-shaped structures compatible with fungus, later identified as Cryptococcus neoformans on culture. The lesions disappeared after 6 weeks of fluconazole therapy, and the patient could continue chemotherapy without further infectious complications.
RESUMO
Relato de caso de criptococose pulmonar mimetizando linfoma num exame de tomografia por emissão de pósitrons (PET-scan). Homem de 62 anos com resolução completa, ao PET-scan, de seu linfoma não Hodgkin de células B, lesões abdominais e pulmonares, após três ciclos de quimioterapia baseada em ritoximabe (R-CHOP). Entretanto, o mesmo exame mostrou também novos nódulos pulmonares, sugestivos de lesões do linfoma. Granuloma inflamatório crônico foi observado no exame anatomopatológico, com estruturas circulares compatíveis com fungo. Cultura revelou Cryptococcus neoformans. As lesões desapareceram após 6 semanas de fluconazol, e o paciente pôde continuar a quimioterapia sem complicações infecciosas.
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Full text: Available Index: LILACS (Americas) Main subject: Cryptococcosis / Positron-Emission Tomography / Lung Diseases, Fungal / Lymphoma Type of study: Diagnostic study / Prognostic study Limits: Humans / Male Language: English Journal: Einstein (Säo Paulo) Journal subject: Medicine Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Israelita Albert Einstein/BR

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Full text: Available Index: LILACS (Americas) Main subject: Cryptococcosis / Positron-Emission Tomography / Lung Diseases, Fungal / Lymphoma Type of study: Diagnostic study / Prognostic study Limits: Humans / Male Language: English Journal: Einstein (Säo Paulo) Journal subject: Medicine Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Israelita Albert Einstein/BR