[A case of mediastinal myelolipoma].
Myelolipoma is a benign tumor composed of mature adipose tissue and hematopoietic tissue. It was mainly found in the adrenal grand, but there have been reports of extra-adrenal locations. Only 7 cases of mediastinal myelolipoma have been reported ever. We have experienced a case of mediastinal myelolipoma surgically resected from a 55-year-old-man. He has visited our department because of chest pain. Chest X-ray showed typical pneumothorax, but abnormal mediastinal shadow was remarked. Chest CT showed a well circumscribed mass with fat and soft-tissue attenuation in posterior mediastinum. Lung bullectomy and mediastinal tumor resection under VATS was performed. A blue-red tumor 4 cm in diameter was resected en bloc. Pathological examination showed its composition of mature adipose tissue and hematopoietic tissue. Diagnosis was extra-adrenal myelolipoma. No recurrent nor abnormality was found in 8 months since surgery.
Koizumi
J
J
Department of Thoracic Surgery, Hokkaido Prefectural Kushiro Hospital, Japan.
Harada
H
H
Yamamoto
N
N
Shiiku
C
C
Ogasa
T
T
Takahashi
M
M
Abe
T
T
Suzuki
T
T
D004724:Endoscopy / Q000379:methods*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D018209:Myelolipoma / Q000473:pathology / Q000601:surgery*; D013906:Thoracoscopy; D014741:Video Recording