Renal schwannoma: A case report and literature review of a rare and benign entity mimicking an invasive renal neoplasm

Dahmen, Aaron; Juwono, Timothy; Griffith, Jennifer M.; Patel, Trushar

doi:10.1016/j.eucr.2021.101637

Cited by 4 publications

(17 citation statements)

References 3 publications

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“…However, it is likely that this number is higher when cases of renal schwannoma published in non-English literature are considered. Renal schwannomas are slow-growing, benign tumors presenting with non-specific symptoms [2]. As a result, they are often diagnosed incidentally [20].…”

Section: Discussionmentioning

confidence: 99%

“…Most occur sporadically as solitary tumors while others have a genetic predisposition and arise in association with neurofibromatosis type 2, schwannomatosis, or Carney’s complex [ 1 ]. Schwannomas are generally slow-growing and may exist asymptomatically for years before presenting with non-specific symptoms depending on anatomical location [ 2 ]. They are most commonly found in the head and neck, which accounts for 25-45% of all schwannoma cases [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

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Renal Schwannoma: A Rare Case Report and Literature Review

Britt¹,

Mroch²,

Young³

et al. 2022

Cureus

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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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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Renal Schwannoma: A Rare Case Report and Literature Review

Britt¹,

Mroch²,

Young³

et al. 2022

Cureus

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“…[3][4][5][6][7] The tumor is often located in renal hilar region, compressing the renal hilum and pelvis. [3][4][5][6][7] Imaging features of renal schwannomas have been rarely reported. Radiologically, it may be difficult to differentiate renal schwannoma from renal cell carcinoma.…”

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confidence: 99%

“…Radiologically, it may be difficult to differentiate renal schwannoma from renal cell carcinoma. [5][6][7] Schwannomas show a wide variability in FDG uptake, ranging from mild to high activity. [8][9][10][11] Gastrointestinal schwannomas and schwannomas with peritumoral lymphoid cuffs may be associated with elevated FDG uptake.…”

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confidence: 99%

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FDG PET/CT in a Case With Cellular Schwannoma of the Kidney

Yu¹,

Zhang²,

Dong

et al. 2022

Clin Nucl Med

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Schwannoma of the kidney is exceedingly rare. We describe contrast-enhanced CT and FDG PET/CT findings in a case with renal cellular schwannoma. Contrast-enhanced CT showed the enhancing tumor was located in the anterior middle portion of the left kidney, encasing the renal vessels and compressing the renal pelvis. The tumor showed inhomogeneous FDG uptake with SUV max of 8.6 mimicking renal cell carcinoma. This case indicates renal schwannoma should be included in the differential diagnosis of FDG-avid renal lesions.

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Giant renal schwannoma with obvious hemorrhage and cystic degeneration: a case report and literature review

Yang

Zuo

et al. 2022

BMC Urol

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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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Renal schwannoma: A case report and literature review of a rare and benign entity mimicking an invasive renal neoplasm

Cited by 4 publications

References 3 publications

Renal Schwannoma: A Rare Case Report and Literature Review

Renal Schwannoma: A Rare Case Report and Literature Review

FDG PET/CT in a Case With Cellular Schwannoma of the Kidney

Giant renal schwannoma with obvious hemorrhage and cystic degeneration: a case report and literature review

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