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Muacevic A, Adler JR, Young AM, Pearce SM. Renal Schwannoma: A Rare Case Report and Literature Review. Cureus 2022; 14:e32236. [PMID: 36620788 PMCID: PMC9812532 DOI: 10.7759/cureus.32236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
Schwannomas originating in the kidney are extremely rare with very few cases documented in the literature. It is difficult to distinguish them from other common renal masses based on clinical symptoms and imaging characteristics alone, as both are non-specific for this pathology. Thus, the final diagnosis of schwannoma is typically made only after surgical resection and histologic examination. We present the case of a 66-year-old female who was initially evaluated for flank pain and referred to us after a renal mass was found on CT imaging. A partial nephrectomy was performed, and subsequent pathological examination confirmed the diagnosis of renal schwannoma.
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Yang CF, Zuo H, Yu JH, Das SK, Li Y. Giant renal schwannoma with obvious hemorrhage and cystic degeneration: a case report and literature review. BMC Urol 2022; 22:101. [PMID: 35820912 PMCID: PMC9277816 DOI: 10.1186/s12894-022-01058-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Renal schwannomas are very rare and are usually benign. Its clinical symptoms and imaging features are nonspecific, and the diagnosis is usually confirmed by pathology after surgical resection. CASE PRESENTATION A 46-year-old Chinese female was admitted to the hospital with right flank pain that had persisted for the six months prior to admission. This pain had worsened for 10 days before admission, and dyspnea occurred when she was supine and agitated. A right abdominal mass could be palpated on physical examination. Computed tomography and magnetic resonance imaging examinations revealed a large, nonenhanced, cystic and solid mass in the right kidney. The patient received radical nephrectomy for the right kidney. The diagnosis of schwannoma was confirmed by pathological examination. CONCLUSIONS We report a case of a large renal schwannoma with obvious hemorrhage and cystic degeneration, which can be used as a reference for further study.
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Affiliation(s)
- Chao Feng Yang
- Sichuan Key Laboratory of Medical Imaging, Department of Radiology, The Affiliated Hospital of North Sichuan Medical College, 63 Wenhua Road, Nanchong City, 637000, Sichuan Province, China
| | - Hui Zuo
- Sichuan Key Laboratory of Medical Imaging, Department of Ultrasound, The Affiliated Hospital of North Sichuan Medical College, 63 Wenhua Road, Nanchong City, 637000, Sichuan Province, China
| | - Jin Hong Yu
- Sichuan Key Laboratory of Medical Imaging, Department of Ultrasound, The Affiliated Hospital of North Sichuan Medical College, 63 Wenhua Road, Nanchong City, 637000, Sichuan Province, China.,Department of Ultrasound, The People's Hospital of Yuechi County, 22 East Jianshe Road, Yuechi County, 638350, Sichuan Province, China
| | - Sushant Kumar Das
- Sichuan Key Laboratory of Medical Imaging, Department of Radiology, The Affiliated Hospital of North Sichuan Medical College, 63 Wenhua Road, Nanchong City, 637000, Sichuan Province, China
| | - Yang Li
- Sichuan Key Laboratory of Medical Imaging, Department of Radiology, The Affiliated Hospital of North Sichuan Medical College, 63 Wenhua Road, Nanchong City, 637000, Sichuan Province, China. .,Department of Radiology, The People's Hospital of Yuechi County, 22 East Jianshe Road, Yuechi County, 638350, Sichuan Province, China.
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Renal schwannoma: A case report and literature review of a rare and benign entity mimicking an invasive renal neoplasm. Urol Case Rep 2021; 37:101637. [PMID: 33777699 PMCID: PMC7985711 DOI: 10.1016/j.eucr.2021.101637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/09/2021] [Indexed: 01/09/2023] Open
Abstract
Schwannomas of the kidney are rare with only a handful of cases reported in literature. We present a case of a large Schwannoma of the right kidney causing mass effect with imaging characteristics thought to represent renal cell carcinoma. On imaging, these masses present similarly to solid renal masses and are therefore indistinguishable without tissue diagnosis. Thus, surgical resection is the definitive treatment for renal schwannomas. Schwannoma of the kidney is a rare entity. Schwannoma of the kidney presents similarly to renal cell carcinoma on imaging. Schwannoma of the kidney can present as large renal masses exerting mass effect. Surgical resection is indicated to confirm diagnosis of Schwannoma of the kidney or renal cell carcinoma.
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