Pulmonary MALT lymphoma – when an opacity persists too long: a case report and literature review

ABSTRACT Mucosa-associated lymphoid tissue (MALT) lymphoma is an extranodal lymphoma arising in a number of epithelial tissues, including stomach, salivary gland and the lung. Pulmonary MALT lymphoma originates in the parenchyma and/or bronchi and is a rare disease, representing 0.5-1% of primary p...

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Bibliographic Details
Main Authors: Rebeca Martins Natal, Gonçalo Cintrão Samouco, Marcos Oliveira, Luís Vaz Rodrigues
Format: Article
Language:English
Published: Sociedade Galega de Medicina Interna 2019-07-01
Series:Galicia Clínica
Subjects:
Online Access:https://galiciaclinica.info/publicacion.asp?f=1765
Description
Summary:ABSTRACT Mucosa-associated lymphoid tissue (MALT) lymphoma is an extranodal lymphoma arising in a number of epithelial tissues, including stomach, salivary gland and the lung. Pulmonary MALT lymphoma originates in the parenchyma and/or bronchi and is a rare disease, representing 0.5-1% of primary pulmonary malignancies. Although the time to diagnosis can be delayed because most patients are asymptomatic and investigations are usually driven by the accidental finding of abnormal lung imaging studies, it has an indolent course and a good prognosis. Here we report the case of an asymptomatic female patient with a nodular lung opacity that was found to persist five months after an episode of community-acquired pneumonia. A final diagnosis of pulmonary MALT lymphoma was obtained after an extensive diagnostic work-up. RESUMO: O linfoma do tecido linfóide associado à mucosa (MALT) é um linfoma extranodal que surge em vários tecidos epiteliais, incluindo o estômago, as glândulas salivares e o pulmão. O linfoma MALT pulmonar tem origem no parênquima e/ou brônquios e é raro, representando 0.5-1% dos tumors primários do pulmão. Pode haver um atraso no tempo até ao diagnóstico porque a maioria dos pacientes é assintomática, sendo as investigações geralmente conduzidas pelo achado acidental de exames de imagem pulmonares alterados. Este linfoma tem um curso indolente e um bom prognóstico. Aqui expomos o caso de uma paciente assintomática com uma opacidade nodular que persistiu 5 meses após um episódio de pneumonia adquirida na comunidade. O diagnóstico final de linfoma MALT pulmonar foi obtido após uma investigação diagnóstica extensa.
ISSN:0304-4866
1989-3922