並列摘要
Cysts of the adrenal gland are uncommon. They are usually discovered incidentally in the evaluation of nonspecific abdominal or flank pain, or other unrelated problems. From 1979 to 1990, in our hospital, 6 cases of adrenal cyst were pathologically confirmed after surgical excision. 3 case were male and 3 cases were female with flank pain being the most common complaint. Adrenal function tests were normal in all cases. 2 cases presented as a typical cyst on ultrasound and CT images. The remaining four atypical cyst cases were caused by: high density of internal content (58 Hu on CT, pseudocyst); inhomogeneous density of internal content (pseudocyst); unusual pattern of calcification-non-peripherally located (lymphangiectatic cyst); coarsed (pseudocyst) and patchy calcification. Fine needle aspiration, with biochemical analysis and cytologic examination of the aspirated content, is a method of choice for differential diagnosis of an atypical cyst. However, pheochromcytoma with central hemorrhagic cystic degeneraton mimics the radiographic image of adrenal cyst. Precaution should be taken during the procedure to prevent fatal complications such as hypertensive crisis and uncontrollable hemorrhage.
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