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Vol. 12. Issue 3.
Pages 269-274 (May - June 2006)
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Vol. 12. Issue 3.
Pages 269-274 (May - June 2006)
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Tumor glómico do pulmão: Apresentação de um caso pouco frequente
Glomic tumor: Presentation of an infrequent case
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Vítor Sousa*, Lina Carvalho**, Fernanda Xavier da Cunha***
* Assistente Hospitalar e Assistente Estagiário de Anatomia Patológica, Hospitais da Universidade de Coimbra
** Chefe de Serviço e Professora Associada de Anatomia Patológica, Hospitais da Universidade de Coimbra
*** Hospitais da Universidade de Coimbra. Serviço de Anatomia Patológica
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Resumo

Os tumores glómicos são tumores perivasculares cujas células se assemelham a células musculares lisas modificadas do corpo glómico. São mais frequentes na região subungueal e raros no pulmão.

Os autores apresentam um caso de uma doente de 62 anos, com toracalgia esquerda e dispneia para grandes esforços. Apresentava nódulo solitário localizado ao segmento basal-externo do LIE, com 1,9cm de diâmetro, de limites bem definidos, consistência firme e superfície de secção nodular e branco-rosada.

Os tumores glómicos são geralmente benignos. Podem ter origem em células glómicas ectópicas ou diferenciarem-se a partir de células não glómicas. Devem ser classificados em tumor glómico, glomangioma ou glomangiomioma de acordo com a abundância relativa de células glómicas, do componente vascular e muscular. Estão descritas metástases pulmonares de tumores glómicos malignos, sendo necessário excluir origem primária extra-pulmonar nesses casos.

O diagnóstico diferencial dos tumores glómicos do pulmão inclui o carcinóide, hemangiopericitoma, tumores musculares lisos (leiomioma epitelióide) e o paraganglioma.

Palavras-chave:
Tumores do pulmão
tumores perivasculares
tumores glómicos
Abstract

Glomic tumours are perivascular tumours whose cells resemble modified smooth muscular cells of the glomic body.

They are more frequent in the subungueal region and rare in the lung.

The authors present a case of a 62 year old women with left thoracic pain and great enforces dyspnoea. She presented a solitary nodule in the external basal segment of the LLL, 1.9cm diameter, circumscribed, firm and with nodular whitish rose cut surface.

Glomic tumours are generally benign. They may origin in ectopic glomic cells or be differentiated from non glomic cells. They should be classified as glomic tumor, glomangioma and glomangiomioma according to the relative abundance of glomic cells and of the vascular and muscular components. Pulmonary metastasis of malignant glomic tumours have been described. In these cases an extra pulmonary primary origin must be excluded. The differential diagnosis of glomic tumours of the lung includes the carcinoid, hemangioperycitoma, smooth muscle tumours (epithelioid leyomioma) and the paraganglioma.

Key-words:
Lung tumours
perivasculars tumours
glomic tumours
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Copyright © 2006. Sociedade Portuguesa de Pneumologia
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