Synchronous double primary lung cancers via p53 pathway induced by heavy smoking
Annals of Saudi Medicine. 2010; 30 (3): 236-238
em Inglês
| IMEMR
| ID: emr-98768
ABSTRACT
Differences in the histological manifestation of synchronous lung cancers are rare. Synchronous multiple primary lung cancers [SMPLC] are associated with long-term tobacco use, which could independently lead to mutations in the p53 and K-ras genes. We present the case of an 82-year-old man who smoked 30 cigarettes daily for the past 60 years. CT of the chest showed a right upper lobe mass. Bronchoscopy revealed an intra-lumen nodular lesion in the right lower lobe bronchus. The diagnoses of small cell lung carcinoma [SCLC] of the right upper lobe and non-small cell lung carcinoma [NSCLC] of the right lower lobe were confirmed by the morphologic features and the detected immunoreactivity. Immunohistochemical analyses showed a strong positive reaction for p53 in samples of the SCLC and NSCLC. The cancers had a different phenotype, but similar genetic abnormalities may have developed due to the carcinogens in the cigarettes
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Índice:
IMEMR (Mediterrâneo Oriental)
Assunto principal:
Fumar
/
Carcinoma Pulmonar de Células não Pequenas
/
Carcinoma de Pequenas Células do Pulmão
Tipo de estudo:
Relato de Casos
Limite:
Idoso
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Ann. Saudi Med.
Ano de publicação:
2010
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