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27 September 2017 : Case report  Japan

A Case of Hemorrhagic Adrenal Pseudocyst Mimicking Solid Tumor

Mistake in diagnosis, Rare disease

Makoto Isono1ABE*, Keiichi Ito1ADE, Kenji Seguchi1ABE, Takashi Kimura1B, Kazuyoshi Tachi1B, Takako Kono2B, Hiroshi Shinmoto3B, Tomohiko Asano1ADE

DOI: 10.12659/AJCR.905063

Am J Case Rep 2017; 18:1034-1038

Abstract

BACKGROUND: Adrenal pseudocysts are often discovered incidentally on imaging, but the diagnosis and treatment can be challenging. A case of adrenal pseudocyst with hemorrhage is presented that mimicked a solid tumor on imaging, resulting in adrenalectomy.

CASE REPORT: A 78-year-old woman was found to have a right adrenal lesion on abdominal imaging. Enhanced computed tomography (CT) showed a heterogeneously enhanced mass, and magnetic resonance imaging (MRI) showed a high-intensity T1-weighted and T2-weighed image, with an irregular enhanced margin. The imaging findings were suggestive of a solid tumor of the adrenal gland. Although full endocrine serological studies were negative, the lesion increased in size at two-year follow-up. Right laparoscopic adrenalectomy was performed, and a benign hemorrhagic adrenal pseudocyst was diagnosed histologically.

CONCLUSIONS: Adrenal pseudocyst can be associated with acute intracystic hemorrhage, and imaging will show contrast enhancement, suggesting malignancy. In such cases, surgical excision is both diagnostic and curative.

Keywords: Adrenal Gland Diseases, Diagnosis, Therapeutics

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923