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Vol. 35. Issue 5.
Pages 245-247 (May 1999)
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Vol. 35. Issue 5.
Pages 245-247 (May 1999)
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Neoplasia primaria múltiple pulmonar sincrónica: carcinoma microcítico como tumor principal y carcinoma epidermoide, una asociación infrecuente
Synchronous multiple primary cancer of the lung: a rare association of small cell carcinoma as the main tumor plus epidermoid carcinoma
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X. Aguilar*, R. Magarolas*, E. Mayayo**
* Unidad de Neumologia. Hospital Universitario Joan XXIII. Tarragona
** Servicio de Anatomía Patológica. Hospital Universitario Joan XXIII. Tarragona
E.J. Colomer1, J.C. Molina, C. Richart
Servicio de Medicina Interna. Hospital Universitario Joan XXIII. Tarragona
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La neoplasia primaria múltiple es poco común, predominando en el cáncer de mama. Este tipo de presentación en el cáncer de pulmón es poco frecuente (1,5-3%), predominando el carcinoma epidermoide como tumor principal. La aparición de un carcinoma microcítico como tumor principal en la neoplasia primaria múltiple pulmonar puede considerarse una rareza.

Los criterios que definen a la neoplasia primaria múltiple pulmonar fueron establecidos en 1975 por Martini y Melamed, siendo la referencia recomendada para su definición.

La neoplasia primaria múltiple pulmonar puede manifestarse de forma sincrónica (aparición simultánea) o metacrónica (diferencia de aparición mayor a 2 años), incidiendo generalmente en varones muy fumadores. Se considera que la supervivencia de este tipo de neoplasia pulmonar es inferior al cáncer de pulmón único.

Presentamos el caso de un paciente diagnosticado de neoplasia primaria múltiple pulmonar sincrónico, carcinoma microcítico como tumor principal y carcinoma epidermoide como tumor asociado, revisando la bibliografía médica al respecto.

Palabras clave:
Neoplasia primaria múltiple pulmonar
Carcinoma microcítico
Carcinoma epidermoide

Multiple primary cáncer (MPC), a rare fínding, is most often seen in the breast. In the lung, this cancer is rare (accounting for between 1.5 and 3% of cases), with epidermoid carcinoma usually being the principal tumor. The presentation of small-cell carcinoma as the principal tumor in MPC is thought to be extremely rare.

The criteria for pulmonary MPC described by Martini and Melamed continue to provide the definition of reference.

Pulmonary MPC can manifest in a synchronically (simultaneous appearance) or metachronically (with more than two years’ lapse in appearance). Patients so-affected are usually male and heavy smokers. Survival with this type of lung cancer is usually less than for a single form.

We report the case of a patient with synchronous MPC of the lung, with small cell carcinoma as the principal tumor associated with epidermoid carcinoma. We review the literature on this subject.

Key words:
Multiple primary cancer of the lung
Small cell carcinoma
Epidermoid carcinoma
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Copyright © 1999. Sociedad Española de Neumología y Cirugía Torácica
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