Laparoscopic resection of retroperitoneal intra-psoas muscle schwannoma: A case report and extensive literature review

Abstract

Highlights Retroperitoneal schwannoma is a rare disease and needs a high index of suspicion to be diagnosed. Generally, retroperitoneal schwannomas are known to be non-sensitive either to radiation or to chemotherapy. Retroperitoneal schwannomas therefore, requiring complete surgical excision with negative margins. In retroperitoneal schwannomas, due to the presence of multiple surgical approaches and different presentations, surgical access should be individualized.

Schwannoma of the psoas muscle

“…La cirugía puede realizarse por un abordaje abdominal o retroperitoneal. Se recomienda el abordaje abdominal para las lesiones localizadas en la porción inferior del psoas, y el retroperitoneal para la porción más proxima (8) . Se ha realizado también algún caso aislado por abordaje laparoscópico.…”

Ancient Schwannoma. A case report

“…Se refieren schwannomas esporádicos y otros relacionados con la enfermedad de von Recklinghausen, en un porcentaje 5 a 18% (1,2,7,(10)(11)(12)16) .Para los vinculados a esta enfermedad, se ha mencionado la posibilidad de transformación maligna (1,8,20,(24)(25)(27)(28) , de extrema rareza en ausencia de esta patología (3) , la multiplicidad (7) y formas familiares (29) .…”

Two giant connected retroperitoneal schwannomas: A rare case report

“…Retroperitoneal schwannomas are generally solitary masses with well-de ned and intact envelopments [1], most of which are located near the great vessels [2,4]. The tumor may be solid or multilocular cystic with hemorrhage and necrosis.…”

“…Schwannoma is a kind of tumor originating from Schwann cells of peripheral nerve. It is the most common peripheral nerve tumor and is usually benign [1,2],and some of the tumors have neuroendocrine functions [3]. Schwannoma usually occurs in patients of 20-50 years old, with no signi cant gender difference.…”