Pancreatic schwannoma: Report of a case

Morita, Shinsho; Okuda, Jun; Sumiyoshi, Kazuhiro; Taketani, M.; Moriguchi, Akihito; Katsu, Ken‐ichi; Tanigawa, Nobuhiko

doi:10.1007/s005950050651

Cited by 40 publications

(22 citation statements)

References 6 publications

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“…[1][2][3]11,12 The pancreas, however, is an extremely unusual site of origin for these tumors. [2][3][4][5] To our knowledge, only 32 cases of pancreatic schwannoma have been reported in the English language literature, which are summarized in Table 1.…”

Section: Discussionmentioning

confidence: 98%

Pancreatic schwannoma: Report of a case

et al. 2008

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Among pancreatic neoplasms, pancreatic schwannoma is quite rare. We report a case of solitary pancreatic schwannoma, plus a literature review of this tumor. A 71-year-old woman was diagnosed by abdominal ultrasonography as having a pancreatic tumor and was hospitalized in our department at Kumamoto University Hospital on January 26, 2006. Abdominal computed tomography, magnetic resonance imaging, and endoscopic ultrasonography all showed this tumor, which was located in the body of the pancreas, to have cystic and solid components, and with a septum in the cystic part of the lesion. The tumor, preoperatively identified as a mucinous cystic neoplasm, was clearly separated from the normal pancreatic parenchyma. We performed a spleen-preserving distal pancreatectomy with a lymph node dissection on February 7, 2006. A histopathological examination of the resected specimen by means of hematoxylin and eosin revealed the tumor to consist of two parts: one with a compact spindle cell pattern (Antoni type A), and the other showing degeneration of fat (Antoni type B). We also found positive results for immunohistochemical staining for S-100 and vimentin. These findings confirmed the tumor's classification as a pancreatic schwannoma.

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Section: Discussionmentioning

confidence: 98%

Pancreatic schwannoma: Report of a case

et al. 2008

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“…In the literature, only 29 cases of intrapancreatic schwannoma have been previously reported [1,4,6]. These 29 cases demonstrated that schwannoma of the pancreas is a tumor generally found in older adults, in a nearly equal ratio of men to women.…”

Section: Sirmentioning

confidence: 88%

“…Schwannoma of the pancreas is an extremely rare lesion; only 29 cases have been reported in the present era [1,4,6]. In the literature, pancreatic schwannomas are reported as often showing cystic features, clinically mimicking pseudocysts or cystic tumors.…”

Section: Sirmentioning

confidence: 97%

Ancient schwannoma of the pancreas mimicking a cystic tumor

et al. 2001

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“…Recurrently reported tumors include, among few other entities, malignant peripheral nerve sheath tumors (MPNST) [7,8,9,10,14,19]. In general, MPNST may arise either sporadically or in association with hereditary neurofibromatosis (types 1 and 2).…”

Section: Introductionmentioning

confidence: 99%

Differential diagnosis of non-epithelial tumors of the pancreas: malignant non-epithelial pancreatic tumor with focal pigmentation

et al. 2004

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Non-epithelial tumors only rarely affect the pancreas. In this report, we describe a malignant non-epithelial tumor with combined characteristics of malignant peripheral nerve sheath tumor (MPNST) and malignant melanoma. To more closely define the differential diagnosis of MPNST with focal pigmentation versus metastatic melanoma resembling MPNST, the tumor was investigated using histomorphology, immunohistochemistry, electron microscopy, and comparative genomic hybridization. As a result, from these analyses and from clinical findings, the diagnosis of a pancreatic MPNST with focal pigmentation was favored. However, the diagnosis of a malignant melanoma or a composite tumor could not be definitely ruled out, due to the considerable morphological and genotypical overlap between both entities, which can be explained by the close histogenetic relationship between both tumor entities.

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Pancreatic schwannoma: Report of a case

Cited by 40 publications

References 6 publications

Pancreatic schwannoma: Report of a case

Pancreatic schwannoma: Report of a case

Ancient schwannoma of the pancreas mimicking a cystic tumor

Differential diagnosis of non-epithelial tumors of the pancreas: malignant non-epithelial pancreatic tumor with focal pigmentation

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