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Incidental Ultrasound Findings of a Giant Retroperitoneal Schwannoma: A Case Study

Schwannoma in retroperitoneal region is quite rare. In this report, we presented such a rare case of a large size schwannoma in a 23-year-old man admitted with a complaint of mild pain in his right lower abdomen. The abdominal ultrasonography detected a round-shaped heterogeneous hypoechoic mass wit...

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Published in:Advanced ultrasound in diagnosis and therapy 2022-06, Vol.6 (2), p.64-67
Main Authors: Jiaqi, Zhao, MD, Weiqing, Li, MD, Xiaolin, Ma, MD, Rui, Chen, MD, Lin, Chen, MD
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description Schwannoma in retroperitoneal region is quite rare. In this report, we presented such a rare case of a large size schwannoma in a 23-year-old man admitted with a complaint of mild pain in his right lower abdomen. The abdominal ultrasonography detected a round-shaped heterogeneous hypoechoic mass with a few blood flow signals at the retroperitoneal area inferior to the right kidney. The contrast-enhanced ultrasound demonstrated a well-demarcated hypoechoic mass with minor vascularization. Computed tomography (CT) diagnosed the retroperitoneal mass as a malignant neoplasm. After surgical resection, histopathologic examination revealed that the mass was a benign cellular schwannoma. Besides the rare case of schwannoma in retroperitoneal region, we believe that multimodal sonographic patterns are conducive to the preoperative diagnosis of retroperitoneal neurilemmoma.
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subjects retroperitoneal neoplasm|schwannoma|neurilemmoma|multimodal|ultrasonography
title Incidental Ultrasound Findings of a Giant Retroperitoneal Schwannoma: A Case Study
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