[Subdiaphragmatico-mediastinal lipoma through the foramen of Bochdalek; report of a surgical case].
A 53-year-old man was admitted to our hospital for evaluation of chest abnormal shadow at the left cardiophrenic angle. Computed tomography (CT) scan revealed a homogeneous mass of fatty density on the left diaphragm. Magnetic resonance imaging (MRI) demonstrated a well-demarcated tumor mass with a fatty signal intensity and, in the sagittal view, the mass showed continuity into the retroperitoneal fatty tissue. Extirpation of the tumor was performed under thoracoscopic procedure. The tumor was adhesive closely to diaphragm and extended into the retroperitoneal space through the foramen of Bochdalek. Pathologically the tumor was diagnosed as a mature lipoma. This tumor was considered to originated from the retroperitoneal fatty tissue under the diaphragm and to herniate into the mediastinum through the foramen of Bochdalek.
Department of Thoracic Surgery, Ohta Nishinouchi Hospital, Kohriyama, Japan.
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Hasumi
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Yamanaka
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Yamanaka
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Suda
D006801:Humans; D008067:Lipoma / Q000175:diagnosis / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D008875:Middle Aged; D013906:Thoracoscopy; D014057:Tomography, X-Ray Computed