Bilateral thoracic extraadrenal myelolipoma

Abstract

Myelolipoma commonly occurs in the adrenal gland and is composed of both adipose tissue and normal hematopoietic elements. Extraadrenal myelolipoma may occur in the retroperitoneum, stomach, liver, lung, and in 3% of cases even in the mediastinum. We present a 65-year-old female patient with unspecific clinical symptoms. Routine chest roentgenograms revealed bilateral widening of the posterior mediastinum. Computed tomography showed bilateral, paravertebral lesions of 4.5 and 6.5 cm in diameter, respectively. After surgical removal, bilateral thoracic myelolipoma was pathomorphologically diagnosed. The imaging differential diagnosis of bilateral solid lesions in the posterior mediastinum including lymph node metastases, lymphomas, neurogenic tumors and extramedullary hematopoietic tumors is discussed.

Multifocal Intra-abdominal Extra-adrenal Myelolipoma Diagnosed by Fine Needle Aspiration: A Case Report and Literature Review

“…[5][6][7][8][9] However, EAML have been reported in various locations of the body, including retroperitoneum, mesentery, stomach, spleen, liver, kidney, mediastinum, lung, and chest wall. [10][11][12][13][14][15][16][17][18][19][20] Myelolipomas are non-functioning tumors and are often asymptomatic. They usually are discovered incidentally on radiographic studies.…”

Thoracic Myelolipoma: A Rare Case of Mistake in Lung Cancer Staging

“…Myelolipomas are benign tumors, and most of them are detected in the adrenal glands. About half of all extraadrenal myelolipomas are located in the retroperitoneum and only 3% occur in the mediastinum [2]. These tumors are typically unilateral, asymptomatic and incidentally diagnosed by imaging detection.…”

Laparoscopic Surgery in a Patient With Bilateral Adrenal Myelolipoma

“…Regular radiological follow-up may be an alternative way to avoid a surgical procedure [14]. Surgical excision may also be needed when cytological and histological examination of the UI J fine-needle aspiration biopsy material is not sufficient to see fat and myeloid cells together for the definitive diagnosis [9,15,16].…”