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BMC Urology

, 13:60

Urological imaging

Abstract

BackgroundChronic expanding hematoma is a rare condition that develops after surgery, trauma, or injury. It can also develop at any location in the body in the absence of trauma. Clinical findings and various diagnostic imaging modalities can aid in the differential diagnosis of this condition. In general, hematomas are naturally reabsorbed and rarely cause serious problems. However, hematomas that develop slowly without a history of trauma, surgery, or bleeding disorders could be difficult to differentiate from soft tissue neoplasms. In the present case, we describe a patient, without any history or physical evidence of trauma, who exhibited a large chronic expanding hematoma in the retroperitoneal space that resulted in hydronephrosis because of the pressure exerted on the left ureter.

Case presentationA 69-year-old man presented to our hospital with a swollen lesion in the left flank. A mass, 19 cm in diameter, was detected in the retroperitoneal space by computed tomography. We suspected the presence of a chronic expanding hematoma, soft tissue tumor, or left renal artery aneurysm. Surgical treatment was performed. However, postoperative histopathological examination indicated that the mass was a nonmalignant chronic expanding hematoma. No recurrence was observed during a 2-year follow-up period.

ConclusionIn patients without a history of trauma who present slowly growing masses, the differential diagnosis should include chronic expanding hematoma in addition to cysts and soft tissue tumors. Moreover, the use of magnetic resonance imaging and computed tomography is essential to differentiate between chronic expanding hematoma and soft tissue tumors.

KeywordsHematoma Retroperitoneal Hydronephrosis AbbreviationsCEHChronic expanding hematomas

CTComputed tomography

MRIMagnetic resonance imaging.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2490-13-60 contains supplementary material, which is available to authorized users.

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Autor: Takahiro Syuto - Motoaki Hatori - Nomura Masashi - Yoshitaka Sekine - Kazuhiro Suzuki

Fuente: https://link.springer.com/







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