Myelolipoma of adrenal gland

Myelolipoma of the adrenal gland is a rare, benign tumor of which only 17 clinical cases have been reported previously in the literature. We document 1 additional case and review the pathogenesis of the tumor, with emphasis on the theory of the tissue necrosis as the major stimulus of the myelolipomatous changes in the adrenals.     

Myelolipoma of the adrenal gland

Adrenal myelolipomas are rare, nonfunctioning, benign neoplasms of the adrenal gland. The authors describe their experience of a case and they report the review of the literature. They illustrate what's etiopathogenetic theories, modern diagnostic technology "of imaging" and different surgical approaches need to be adapted to the excision of the adrenal myelolipomas.     

Myelolipoma of the adrenal gland

We report the 14th case of myelolipoma of the adrenal gland. Recommendations for appropriate diagnostic and therapeutic methods are made. Myelolipoma of the adrenal gland is a rare nonfunctioning tumor composed of lipoid and hematopoietic elements. The most consistent complaint is abdominal pain caused by hemorrhage within the tumor. We identified an association with obesity and hypertension. Ultrasound combined with computed tomography is useful in diagnosis. With expanded use of these studies, myelolipoma will be recognized more frequently. Definitive diagnosis and treatment are accomplished by simple excision; radical surgery is unnecessary.     

Myelolipoma of the adrenal gland. Case report

Myelolipoma is a rare, benign, endocrinologically nonfunctioning adrenal tumor composed of fatty tissue with foci of hematopoietic cells. Clinical diagnosis and surgical removal are extremely rare. We report a case of large myelolipoma (10 x 6 x 6 cm) that was removed surgically in a 54-year-old man in whom the mass was studied preoperatively by sonogram, CT and angiography.     

Myelolipoma of the adrenal gland: a case report

A case of myelolipoma of the adrenal gland is reported. The patient was a 50-year-old male who was obese and robust, and complained of right flank pain. Laboratory investigation of adrenal functions were within normal levels. Excretory urography showed a large radiolucent mass in the right upper quadrant, displacing the right kidney to a lower position. Angiography demonstrated a large hypovascular mass. CT scan showed a large mass with low density in the right retroperitoneal space. The tumor was surgically removed through a lumbar incision, and was 800 gm in weight and well capsulated. A pathological study of the tumor disclosed adrenal myelolipoma consisting of mature fat cells and myeloid elements. Myelolipoma of the adrenal gland is rare and 33 cases of adrenal myelolipoma from the English and Japanese literature including this case were reviewed and analyzed statistically.     

Myelolipoma of the adrenal gland: report of a case

A 50-year-old male was admitted to our municipal hospital because of his right suprarenal tumor which had been found by ultrasonography by chance at National Toneyama Hospital. His physical examination was normal except for obesity. Hematological examination and blood chemistry were normal and no endocrine disorder was found. Excretory urogram revealed neither deformity of the collecting system nor displacement of the right kidney. Computed tomography visualized sharp marginated in homogeneous structured mass of different densities within the negative range. Angiography revealed hypovascularity of the tumor. Right adrenalectomy was performed and the specimen weighed 72 g. Histopathologically is consisted of adult fat tissue and hematopoietic tissue. In addition to our case, 17 cases of surgically removed myelolipoma reported in the Japanese literature are reviewed.     

肾上腺髓质脂肪瘤(附九例报告)

目的：提高肾上腺髓质脂肪瘤的诊断与治疗水平。方法：总结9例肾上腺髓质脂肪瘤患者的临床资料,其中右侧7例、左侧2例,均行肿瘤切除术。结果9例术后随访1－15年,均健在,无肿瘤复发。结论本组肾上腺髓质脂肪瘤影像学诊断准确率为100％,手术是治愈本病的唯一方法,但不应以肿瘤直径大小为唯一手术指征。     

Myelolipoma of adrenal

A case of a forty-six-year-old woman with an adrenal myelolipoma on the left side is reported. The presenting complaint was pain, and investigation revealed a large, relatively avascular nonfunctioning tumor of the left adrenal. This rare (ninth reported instance of surgical removal) tumor is briefly reviewed.     

Myelolipoma of the adrenal gland. Review of diagnostic problems and surgical intervention

Myelolipoma is a benign, rare, and hormone-inactive tumor of the adrenal gland. Its characteristic appearance on sonography and computed tomography enables preoperative diagnosis with a high degree of safety and accuracy. Symptomatic or large tumors have to be removed since there is a high risk of spontaneous hemorrhage. Common findings in patients with myelolipoma are reviewed, especially in those with surgically removed tumors.     

Myelolipoma of the adrenal gland. Angiographic findings and review of the literature.

Myelolipoma of the adrenal gland is a rare tumor. It has been surgically excised in only five cases, including the one described in this report. However, review of the literature reveals a total of one hundred thirty cases. Although more than 96 per cent of these lesions were found incidentally at autopsy and more than half could be appreciated only microscopically, it is clear that these tumors can grow sufficiently to become symptomatic, undergo hemorrhage, and require operation. The clinical angiographic and pathologic features of myelolipoma are described. Although endocrine function of this tumor has never been demonstrated, related experimental evidence of others is summarized because it suggests that complete endocrinologic evaluation of patients with suspected myelolipoma is indicated. Despite the rarity of the tumor, we believe that the radiologic and clinical features of myelolipoma that we have described may allow preoperative diagnosis in the future.     

Myelolipoma of the adrenal gland presenting as upper abdominal symptoms: a case report

A case of adrenal myelolipoma is presented. A 39-year-old woman was admitted to our hospital for further examination of a right adrenal mass, which was found by examination for nausea, vomiting and upper abdominal pain. Imaging analyses by computed tomography and magnetic resonance imaging revealed a round fatty mass. Endocrine study of the adrenal gland showed normal results. Right adrenalectomy was performed. The tumor weighed 240 g and the histological diagnosis was adrenal myelolipoma. Postoperative course was uneventful and upper abdominal symptoms disappeared after surgery.     

Myelolipoma of the adrenal gland: report of two cases with a review of the literature

Myelolipomas are rare, nonfunctioning, benign lesions composed of varying proportions of fat and bone marrow elements. The clinical and pathologic features are described with a brief discussion of the possible etiology and pathogenesis. Forty-seven cases in the world literature are reviewed including two of our patients. Twenty-four patients were seen initially with pain, 19 had hypertension, 15 were obese, and seven had hematuria. These tumors can be diagnosed by their characteristic appearance on ultrasonography, computerized tomography, and angiography and by their lack of hormonal alterations.