title: [Dermatomyositis as the first manifestation of small cell carcinoma: case report and literature review].
abstract: Dermatomyositis is an autoimmune inflammatory myopathy associated with dermatologic findings. Its association with neoplasms is widely reported and has been shown to be higher in lung cancer, particularly small-cell carcinoma, probably as it originates from neuroendocrine cell precursors, as well as breast and ovarian cancer. The low frequency of dermatomyositis makes it difficult to suspect the underlying lesions among the diagnostic possibilities of systemic diseases with cutaneous manifestations. Therefore, the high probability of a neoplasm should always be considered, with reports of up to 75% in the eastern population and about 40% in general. In this report, we present a rare case of dermatomyositis with lesions in a shawl-like distribution, as a symptomatic debut of a small cell lung carcinoma.
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile. Address: Hospital Eduardo Pereira, Calle Ibsen sin número esquina Noruega, Valparaíso, Chile. Email: andita007@gmail.com.
authors.forename: Herman
authors.initials: H
authors.lastname: Ahumada Piña
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile.
authors.forename: Luis
authors.initials: L
authors.lastname: Fuentes Cabrera
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Selamé Glena
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile.
authors.forename: Daniel
authors.initials: D
authors.lastname: García Oneto
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile; Servicio de Cirugía, Hospital Dr. Eduardo Pereira, Valparaíso, Chile.
authors.forename: Andrea
authors.initials: A
authors.lastname: Jiménez Aguilar
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile; Servicio de Cirugía, Hospital Dr. Eduardo Pereira, Valparaíso, Chile.
authors.forename: Claudia
authors.initials: C
authors.lastname: Durán Herrera
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile; Servicio de Cirugía, Hospital Dr. Eduardo Pereira, Valparaíso, Chile.
authors.forename: Jorge
authors.initials: J
authors.lastname: Ávila Pérez
authors.affiliation: Escuela de Medicina, Universidad de Valparaíso, Viña del Mar, Valparaíso, Chile; Servicio de Cirugía, Hospital Dr. Eduardo Pereira, Valparaíso, Chile.
authors.forename: Maximiliano
authors.initials: M
authors.lastname: Cortés Latorre
mesh_terms: D003882:Dermatomyositis / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010257:Paraneoplastic Syndromes / Q000209:etiology* / Q000473:pathology; D055752:Small Cell Lung Carcinoma / Q000150:complications / Q000175:diagnosis*
keywords:  paraneoplastic syndrome;  small cell carcinoma; dermatomyositis