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Vol. 44. Issue 11.
Pages 641-644 (January 2008)
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Vol. 44. Issue 11.
Pages 641-644 (January 2008)
Case Reports
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Necrotic Lipoma of the Posterior Mediastinum
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Carlota Andreua,
Corresponding author
carlotaandreuarasa@yahoo.com

Correspondence: Dr C. Andreu Servicio de Radiología, Hospital de la Princesa Diego de León, 62 28006 Madrid, Spain
, Pon Yat-Wahb, Javier Fragac, María José Oliveraa, Paloma Caballeroa
a Servicio de Radiología, Hospital de la Princesa, Universidad Autónoma, Madrid, Spain
b Servicio de Cirugía Torácica, Hospital de la Princesa, Universidad Autónoma, Madrid, Spain
c Servicio de Anatomía Patológica, Hospital de la Princesa, Universidad Autónoma, Madrid, Spain
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Lipomas are well-differentiated, encapsulated masses composed of adipocytes. Intrathoracic lipomas are rare, but found most commonly in the pleura or anterior mediastinum. Computed tomography shows fatty, homogenous content of the mass and will establish the diagnosis. Areas with a higher fat density are suggestive of liposarcoma. We describe a case of lipoma in the posterior mediastinum that contained solid areas on computed tomography. Histology showed that these areas were fat necrosis.

Key words:
Neoplasm
Thorax
Mediastinal lipoma
Necrotic lipoma
Chest radiograph
Computed tomography

Los lipomas son masas bien limitadas y encapsuladas, compuestas por adipocitos. Los de localización intratorácica son raros y se sitúan con mayor frecuencia en la pleura o el mediastino anterior. La tomografía computarizada demuestra el contenido graso y homogéneo de la masa, lo que permite establecer el diagnóstico. La presencia de zonas de mayor densidad en la grasa debe llevar a sospechar un liposarcoma. Presentamos un caso de lipoma localizado en el mediastino posterior, con áreas sólidas en su interior, detectadas con tomografía computarizada, que correspondieron a zonas de necrosis grasa en el estudio histológico.

Palabras clave:
Neoplasia
Tórax
Lipoma mediastínico
Lipoma infartado
Radiografía de tórax
Tomografía computarizada
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Copyright © 2008. Sociedad Española de Neumología y Cirugía Torácica (SEPAR)
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