肾上腺髓脂瘤的CT诊断

Diagnosis of Adrenal Myelolipoma by Computed Tomography

Fourteen cases of adrenal myelolipoma proved by surgery and pathology are reported. All cases were in the right. CT of 14 cases revealed sharply marginated suprarenal mass, usually round or oval. The CT number were less than-30 HU. Their radiolucency was equal to or greater than normal fat, the remainder were of round soft mass or multiseptated streak soft trssue CT appearance may represent pathologic findings. By evaluating location, as well as the lack of contrast enhancement in the fatty portion, it seems that a specific histologic diagnosis can be made preoperatively by CT. According to CT appearance in our series, all of 14 patients established the correct diagnosis before operation. It seems that CT is superior in the preoperative diagnosis of adrenal myelolipoma to u'trasound and conventional radiologic examination including intravenous urography and angiography The etiology and pathology of myelolipoma as well as the differential diagnosis of fatty tumor in the suprarenal area are also discussed.