Surgical management of ancient retroperitoneal schwannoma

Harouachi, Abdelhakim; Khomsi, Nabil; Aabdi, Houssam; Akouh, Nada; Bouhout, Tariq; Bennani, Amal; Harroudi, Tijani El; Serji, Badr

doi:10.1016/j.amsu.2022.103934

Cited by 3 publications

(4 citation statements)

References 12 publications

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“…The clinical characteristics of our cases compared with those reported in the literature are presented in Table 1 6,11,17–38 . A detailed overview of our cases is available in Table S2, while the published studies are summarized in Table S3.…”

Section: Resultsmentioning

confidence: 99%

Imaging in gynecological disease (26): clinical and ultrasound characteristics of benign retroperitoneal pelvic peripheral‐nerve‐sheath tumors

Fischerová

Santos²,

Wong

et al. 2023

Ultrasound in Obstet & Gyne

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ObjectiveTo describe the clinical and sonographic characteristics of benign, retroperitoneal, pelvic peripheral nerve sheath tumors (PNST).MethodsThis was a retrospective, single, gynecologic oncology center study conducted between 1 January 2018 and 31 August 2022. All ultrasound images, clips, and final specimens of benign PNSTs were reviewed by the authors to describe (1) the ultrasound appearance of the tumors using the terminology of the International Ovarian Tumor Analysis (IOTA), Morphological Uterus Sonographic Assessment (MUSA) and Vulvar International Tumor Analysis (VITA) groups on a predefined ultrasound assessment form, (2) the origin of the tumors in relation to nerves and pelvic anatomy, and (3) the correlation between ultrasound features and histotopograms. A review of literature on benign, retroperitoneal, pelvic PNSTs with preoperative ultrasound examination was performed.ResultsFive women (mean age 53 years) with benign, retroperitoneal, pelvic PNSTs were identified: four with schwannomas and one with a neurofibroma, all of which were sporadic and solitary. All patients had good quality ultrasound images and clips and final biopsies of surgically excised tumors, except for one patient managed conservatively with a tru‐cut biopsy. In four of these cases, the findings were incidental. Size range for the five PNSTs was from 31‐50 mm. All five PNSTs were solid, moderately vascular tumors, with non‐uniform echogenicity, well‐circumscribed by hyperechogenic epineurium, and had no acoustic shadowing. Most of the masses were round (n = 4 (80%)), and contained small, irregular, anechoic, cystic spaces (n = 3 (60%)), and hyperechoic areas (n = 4 (80%)). A literature search identified 47 cases of retroperitoneal schwannomas and neurofibromas, the characteristics of which were compared with the cases in our series.ConclusionsOn ultrasound, benign PNSTs were solid, non‐uniform, moderately vascular tumors without acoustic shadowing. Most were round, containing small, irregular, anechoic, cystic spaces, and hyperechoic areas, consistent with degenerative changes on pathology. All tumors were well‐circumscribed by a hyperechogenic rim composed of epineurium. No imaging characteristics reliably differentiated between schwannomas and neurofibromas. In fact, they overlap with the ultrasound appearance of malignant tumors. Hence, ultrasound‐guided biopsy plays a pivotal role in diagnosis, and if confirmed as benign PNSTs, these tumors can undergo ultrasound surveillance.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Imaging in gynecological disease (26): clinical and ultrasound characteristics of benign retroperitoneal pelvic peripheral‐nerve‐sheath tumors

Fischerová

Santos²,

Wong

et al. 2023

Ultrasound in Obstet & Gyne

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“…Harouachi et al . [ 4 ] described an open approach for removal of a retroperitoneal schwannoma within the antero-caval location (anterior to the vena cava). Throughout the literature, there are a few cases utilizing a robotic-assisted approach to resect retroperitoneal masses.…”

Section: Discussionmentioning

confidence: 99%

“…A majority of ancient schwannomas tend to be found incidentally and are mostly found in females between the second and fifth decade of life [ 3 ]. In the literature review, only one case has been reported of an Ancient Schwannoma involving the major abdominal vessels [ 4 ]. This case report presents the diagnosis and surgical management of the first robotic excision of a retrocaval ancient schwannoma on a 40-year-old female.…”

Section: Introductionmentioning

confidence: 99%

Robotic excision of a retrocaval ancient schwannoma: a case report

Marquez,

Luciano,

Ghanem

2024

Journal of Surgical Case Reports

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We report a case of a robotic-assisted excision of a retrocaval ancient schwannoma. A 40-year-old female presented with generalized weakness and abdominal pain that led to the diagnosis of a retroperitoneal mass adjacent to the pancreas and inferior vena cava. Because of the clinical, imaging, and needle biopsy findings, the patient underwent an elective robotic-assisted retroperitoneal exploration. We provide an overview of the pathology and highlight the significance of utilizing a minimally invasive approach for excision of retroperitoneal masses.

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“…Outros autores descreveram a mini laparotomia assistida endoscopicamente e microscopicamente negativa como uma abordagem avançada ao Schwannoma retroperitoneal. 4,6 Entretanto, nem sempre a execução desse procedimento é exequível, e a retirada de estruturas adjacentes em bloco pode ser necessária. A partir disso, o objetivo desse trabalho foi relatar um caso de Schwannoma pélvico em uma mulher adulta e o manejo cirúrgico.…”

Section: Introductionunclassified

Manejo cirúrgico de Schwannoma pélvico em mulher adulta: um relato de caso

Gomes do Nascimento Neto,

De Sousa Silva

2024

Revi. Científica Integrada

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Objetivo: relatar um caso de Schwannoma pélvico em uma mulher adulta e o manejo cirúrgico. Relato de caso: paciente, sexo feminino, 57 anos, apresentando abaulamento na região direita da pelve associado a dor local, irradiação para região lombar e paresia em membros inferiores com evolução de cinco meses. Ao exame físico, identificou-se massa palpável e indolor com dimensões de aproximadamente 5 cm e de consistência fibroelástica, em quadrante inferior direito do abdome. A paciente foi submetida a ressecção do tumor retroperitoneal, seguida por dissecção por planos com exposição dos processos espinhosos, lâminas e articulações de L3-S1 com dificuldade devido ao volume da massa tumoral e da infiltração a nível medular. Mesmo com o anatomopatológico sugerindo diagnóstico de sarcoma pleomórfico indiferenciado, os exames citomorfológicos e imuno-histoquímico confirmaram o diagnóstico de Schwannoma, apresentando S-100 como as células tumorais e não se identificando células CD117 (KIT) e EMA (MUC1).

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Surgical management of ancient retroperitoneal schwannoma

Cited by 3 publications

References 12 publications

Imaging in gynecological disease (26): clinical and ultrasound characteristics of benign retroperitoneal pelvic peripheral‐nerve‐sheath tumors

Imaging in gynecological disease (26): clinical and ultrasound characteristics of benign retroperitoneal pelvic peripheral‐nerve‐sheath tumors

Robotic excision of a retrocaval ancient schwannoma: a case report

Manejo cirúrgico de Schwannoma pélvico em mulher adulta: um relato de caso

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