UropathologyRetroperitoneal schwannoma
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Cited by (84)
Retroperitoneal schwannoma sandwiched between abdominal aorta and inferior vena cava. A case report
2020, International Journal of Surgery Case ReportsCitation Excerpt :Schwannomas are tumors that arise from the nerve sheath, commonly in head, neck, and extremities. They rarely manifest in the retroperitoneal area [1]. Approximately, 0.3–3 % of schwannomas are found in the retroperitoneum [2].
Differentiation of primary chordoma, giant cell tumor andschwannoma of the sacrum by CT and MRI
2013, European Journal of RadiologyCitation Excerpt :Kim et al. [24] described the imaging features of 6 schwannomas, all of which were well-demarcated spherical masses with prominent cystic change. Takatera et al. [25] in a review of the Japanese literature found 133 reported cases of schwannoma, of which 66% showed cystic change. But neither of them had carefully studied the specific morphology of the cystic component within GSS.
CT and MR imaging of retroperitoneal schwannoma
2013, Diagnostic and Interventional ImagingCitation Excerpt :The CT-scan finds a well-defined lesion, whose density depends on the lesional rearrangements. Whether cystic, necrotic, haemorrhagic or in the form of calcification, the larger the tumour the more marked the rearrangements [13,14]. The CT-scan guided biopsy may not contribute a great deal in view of these rearrangements and remains debatable [4].
Juxta-adrenal schwannoma: Dynamic multi-slice CT and MRI findings
2012, European Journal of RadiologyCitation Excerpt :Cystic degeneration or calcification is the end-stage degenerative change of a schwannoma, which is considered to be a result of a long-standing tumor growth [26]. About 66% of retroperitoneal schwannomas are found to be associated with cystic degeneration, which is originally considered to be a characteristic change of schwannomas [27]. However, cystic degeneration or necrosis cannot be used reliably to distinguish between benign and malignant retroperitoneal tumors because this change was also commonly observed within malignant retroperitoneal tumors [28].
Imaging of the Retroperitoneum
2012, Radiologic Clinics of North AmericaCitation Excerpt :Targetlike central enhancement may also be seen.67 Larger schwannomas are more likely to undergo degenerative changes, including cyst formation (in up to 66%), calcification, hemorrhage, and hyalinization (Fig. 10).19,68 Ancient schwannoma refers to a long-standing lesion with advanced degenerative changes.69,70
Management of benign retroperitoneal schwannomas: A single-center experience
2011, American Journal of Surgery