Nonencapsulated ancient schwannoma of the renal sinus.

Bezzi, Marcello; Orsi, Fernanda Andrade; Rossi, P

doi:10.2214/ajr.166.6.8633479

Cited by 9 publications

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“…Nerve sheath tumours of the kidney seem to be particularly rare, with only eight cases reported in the literature [ 8 - 10 ]. The renal hilum is a common site of renal schwannoma [ 11 - 13 ].…”

Section: Discussionmentioning

confidence: 99%

Perirenal schwannoma: a case report

2008

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IntroductionNerve sheath tumours of the kidney are particularly rare and, in the few reported cases, are all situated in the hilar region.Case presentationWe describe the case of a tumour presenting towards the lateral border of the ventral aspect of the mid-zone of the kidney. This was a spindle cell lesion in which the cells strongly and diffusely expressed cytokeratins, but were negative for epithelial membrane antigen. The cells also expressed S-100 protein and glial fibrillary acidic protein, confirming the diagnosis of a cellular schwannoma.ConclusionTo the best of our knowledge, this is the first case of a cellular schwannoma presenting towards the lateral border of the kidney. The case also highlights the importance of using a panel of antibodies in diagnosing spindle cell neoplasms in the kidney.

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Section: Discussionmentioning

confidence: 99%

Perirenal schwannoma: a case report

2008

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“…They are rarely found in the retroperitoneum, especially in the kidney, and only 15 cases have been reported [1,2,3,4]. They usually occur in middle-aged adults, and women are affected twice as often as men.…”

Section: Discussionmentioning

confidence: 99%

“…They usually occur in middle-aged adults, and women are affected twice as often as men. The tumors may occur anywhere in the kidney: Their origin consisted of the renal capsule in 5 cases, the renal hilum or pelvis in 7 cases, and the renal parenchyma in 3 cases [1,2,3,4]. The b T2-weighted fast SE image (TR/TE = 1800/150 ms) shows a heterogeneous hyperintense mass.…”

Section: Discussionmentioning

confidence: 99%

“…Neurilemoma which occurs in the peripheral nerve regions rarely exceeds 5 cm in diameter [5]. Renal neurilemomas are also usually less than 5 cm, but those in the retroperitoneum or mediastinum may be larger [1,2,3,4,5]. There is no correlation between size and malignant potential or biological aggressiveness [7].…”

Section: Discussionmentioning

confidence: 99%

“…It is especially uncommon in the kidney: Only 15 case reports have been described in the literature [1,2,3,4]. Although previous reports have described CT, ultrasound, and angiographical findings of renal neurilemomas, only two reports have described an MR appearance of renal neurilemoma [1,3].…”

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Neurilemoma of the renal capsule: MR imaging and pathologic correlation

et al. 2001

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We report a case of neurilemoma arising from the renal capsule. Renal neurilemoma is an especially rare tumor, with only 15 cases previously reported. We attempted to correlate MR findings with microscopic components of the tumor. On T2-weighted images the solid part of the tumor was heterogeneous hyperintense. The MR signal intensity on T2-weighted images help estimate microscopic components of the renal neurilemoma.

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Ancient schwannoma of the nose: Case report and literature review

Eroglu

Emre

2018

Journal of Oral and Maxillofacial Surgery, Medicine, and Pathol

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Nonencapsulated ancient schwannoma of the renal sinus.

Cited by 9 publications

References 0 publications

Perirenal schwannoma: a case report

Perirenal schwannoma: a case report

Neurilemoma of the renal capsule: MR imaging and pathologic correlation

Ancient schwannoma of the nose: Case report and literature review

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