2019, Number 3
Malignant peripheral nerve sheath tumor of the left sciatic nerve
Language: Spanish
References: 12
Page: 382-388
PDF size: 476.37 Kb.
ABSTRACT
Background: malignant peripheral nerve sheath tumors are soft tissue sarcomas with a low incidence.Objective: to present a case of malignant peripheral nerve sheath tumor of the left sciatic nerve who underwent surgical treatment at the University Hospital "Manuel Ascunce Domenech" in the province of Camagüey in June, 2018.
Presentation of the case: a 45-year-old male patient, personal history of neurofibromatosis type 1 with a truncal left sciatic pain that turned permanent. He referred gait difficulties and increase of the volume in the left buttock. A tumor mass of seven centimeters was palpated, firm, fix to deep planes and painful at deep palpation. Soft tissue ultrasonography showed: complex oval hypoechoic image of deep location of 45 X 9 X 20 millimeters of regular and well defined contours at 22 millimeters depth from the skin. Surgical treatment was decided base on the tumor resection and radiotherapy. Definitive biopsy after immune histochemistry, informed a high degree malignant peripheral nerve sheath tumor of a previous neurofibroma.
Conclusions: malignant peripheral nerve sheath tumors are weird neoplasias and even more its proximal location. The presented patient despite the radical surgical resection associated to radiotherapy, the size superior to ten centimeters, the association to neurofibromatosis type 1 and the high histological degree, worsen the forecast. The precocious diagnosis and accurate treatment are important.
REFERENCES
Miettinen MM, Antonescu CR, Fletcher CD, Kim A, Lazar AJ, Quezado MM, et al. Histopathologic evaluation of atypical neurofibromatous tumors and their transformation into malignant peripheral nerve sheath tumor in neurofibromatosis 1 patients – a consensus overview. Hum Pathol [Internet]. 2017 Sep [citado 20 Abr 2018];67(67):[aprox. 10 p.]. Disponible en: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5628119/.
Watson KL, Al Sannaa GA, Kivlin CM, Ingram DR, Landers SL, Roland CL, et al. Patterns of recur-rence and survival in sporadic, neurofibromatosis type 1-associated, and radiation-associated malig-nant peripheral nerve sheath tumors (MPNSTs). J Neurosurg [Internet]. 2017 Jan [citado 20 Abr 2018];126(1):[aprox. 11 p.]. Disponible en: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5045773/.
Yong-hui Y, Jing-tao W, Jing Ye, Ming-xiang Ch. Radiological findings of malignant peripheral nerve sheath tumor: reports of six cases and review of literature. World J Surg Oncol [Internet]. 2016 May [citado 20 Abr 2018];14(1):[aprox. 8 p.]. Disponible en: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4862189/.