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

doi:10.37015/AUDT.2022.210010

Advanced Ultrasound in Diagnosis and Therapy ›› 2022, Vol. 6 ›› Issue (2): 64-67.doi: 10.37015/AUDT.2022.210010

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

Jiaqi Zhao, MD^a^,¹^,^*(), Weiqing Li, MD^b^,¹, Xiaolin Ma, MD^a, Rui Chen, MD^a, Lin Chen, MD^a

^a Department of Ultrasound, Changzheng Hospital, Naval Medical University, Shanghai, China.
^b Department of Pathology, Changzheng Hospital, Naval Medical University, Shanghai, China

Received:2021-04-29 Revised:2021-06-04 Online:2022-06-30 Published:2022-06-26
Contact: Jiaqi Zhao, MD, E-mail:qiqiblue67@163.com

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Abstract

Abstract:

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.

Key words: Retroperitoneal neoplasm; Schwannoma; Neurilemmoma; Multimodal; Ultrasonography

Jiaqi Zhao, MD, Weiqing Li, MD, Xiaolin Ma, MD, Rui Chen, MD, Lin Chen, MD. Incidental Ultrasound Findings of a Giant Retroperitoneal Schwannoma: A Case Study. Advanced Ultrasound in Diagnosis and Therapy, 2022, 6(2): 64-67.

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

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