Le schwannome rétropéritonéal. À propos d'un cas

Moualli, S Ben; Hajri, M; Amna, M Ben; Kolsi, K.; Chébil, Mohamed; Jilani, Sarra Ben; Zaouech, A.; Ayed, M

doi:10.1016/s0003-4401(01)00042-0

Cited by 7 publications

(7 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Abdominal ultrasound is a rapid, inexpensive, and effective tool for initial diagnostic orientation. It provides information on the cystic and solid nature of the schwannoma [ 5 ]. The abdominal CT scan generally shows a well limited solid tumor with a cystic component.…”

Section: Discussionmentioning

confidence: 99%

“…The abdominal CT scan generally shows a well limited solid tumor with a cystic component. It provides the same information as the MRI but the MRI is accepted as the imaging method of choice for diagnosis of most soft-tissue tumors because of its higher diagnostic predictability compared with ultrasound or CT [ 3 , 5 ]. Schwannomas are characterized by a hyposignal on T1 and a heterogeneous hypersignal on T2 [ 6 ].…”

Section: Discussionmentioning

confidence: 99%

“…Preoperative CT- or ultrasound-guided biopsy is not recommended by most authors because of the difficulties of interpretation, and may be associated with the risk of bleeding, infection, and tumor seeding. Therefore, a definitive diagnosis of schwannoma should be made on postoperative histopathology [ 5 , 9 ]. Schwannomas are not sensitive to radiotherapy and chemotherapy, the only valid treatment is complete surgical excision [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Retroperitoneal shwannoma: A case report

Lamris

Yamine

Jay

et al. 2021

Annals of Medicine and Surgery

View full text Add to dashboard Cite

Introduction Schwannomas are tumors that arise from Schwann cells of the peripheral nerve sheath and rarely occur in the retroperitoneum (3% of all schwannomas). Patients are usually asymptomatic or have nonspecific symptoms, making accurate preoperative diagnosis difficult. Schwannomas are usually benign, but infrequently undergo malignant transformation. Herein, we report a case of retroperitoneal schwannoma and review the relevant literature. Presentation of case A 25-year-old woman presented to our department with a 2-year history of abdominal pain that was localized in the right flank without radiation, constipation/diarrhea or externalized digestive hemorrhage. On physical examination, we found a painless palpable mass in the right hypochondrium extending to the right iliac fossa, measuring approximately 10 cm. The MRI and CT scan showed the presence of a large intra-abdominal oval formation in the right para-umbilical region. It was well limited, measuring 110*69mm with discrete irregular contours, thickened wall and heterogeneous content mostly fluid. They also showed the presence of a cystic formation in the right ovary measuring 84*52mm and extending over 76mm. The procedure consisted of resection of the retroperitoneal solid cystic mass, right ovariectomy and drainage of the right parietal-colic gutter by Salem sump tube. A laparotomy with a median incision above and below the umbilicus was performed. After the resection, the specimens were sent for anatomopathological examination which concluded that the retroperitoneal mass was a schwannoma and the ovarian mass was a serous cystadenoma. Discussion Retroperitoneal schwannomas are rare tumors and a pre-operative diagnosis is often difficult. The diagnosis is most often fortuitous and late, given the latency of the tumor's evolution, and the definitive diagnosis is based on histopathologic examination. Herein we presented a case of retroperitoneal schwannoma and studied the features of this phenomenon on the basis of the literature. Conclusion Retroperitoneal schwannomas are rare. The diagnosis is often late at the stage of a large tumor. Radiologic findings are usually nondiagnostic. The treatment of choice is complete surgical excision. Prognosis is good but because of the risk of recurrence and malignant transformation, further follow-up is necessary.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Retroperitoneal shwannoma: A case report

Lamris

Yamine

Jay

et al. 2021

Annals of Medicine and Surgery

View full text Add to dashboard Cite

show abstract

“…La localisation retropéritonéale représente 3% des schwannomes et 4% des tumeurs rétropéritonéales primitives. Cette localisation rétropéritonéale représente seulement 0,7% des schwannomes bénins et 1,7% des schwannomes malins [ 6 , 7 ]. A l’étage pelvien le schwannome est tout aussi rare, les publications n’étant faites que de cas isolés, la tumeur peux intéresser tous les organes du petit bassin y compris les organes génitaux externes [ 8 ], sa fréquence est identique dans les deux sexes avec un âge moyen de 51 ans, et des extrêmes allant de 27 à 70 ans [ 9 ].…”

Section: Discussionunclassified

Schwannome benin primitif retrovesical : une tumeur très rare à propos d'un cas

Beddouche¹,

Fahsi²,

Kallat³

et al. 2016

Pan Afr Med J

View full text Add to dashboard Cite

Le schwannome est une tumeur le plus souvent bénigne, d'origine nerveuse se développant à partir des cellules de la gaine de Schwann. C'est une tumeur très rare tant par sa fréquence que par sa localisation rétrovésicale. L'examen anatomopathologique et immunohistochimique confirme le type histologique ainsi que le caractère bénin ou malin du schwannome. En raison des récidives, et du risque de transformation maligne, l'exérèse doit être complète. Nous rapportons le cas d'un patient âgé de 39 ans, admis pour une douleur pelvienne chronique à type de pesanteur, des signes irritatifs du bas appareil urinaire, et des troubles de transit. L'imagerie (échographie, TDM, IRM) a révélé la présence d'une masse pelvienne rétrovésicale, à paroi fine, latéralisée à gauche, mesurant 68x70x70 mm, exerçant un effet de masse sur la vessie et le sigmoïde. L'intervention chirurgicale menée par une laparotomie médiane a permis l'exérèse d'une masse retrovésicale bien encapsulée. L'examen anatomopathologique et immunohistochimique ont conclu à un schwannome bénin. La récidive et la transformation maligne bien que rare après chirurgie impose une surveillance post opératoire clinique et tomodensitométrique annuelle.

show abstract

“…Schwannoma is a rare tumour arising from Schwann cells in the myelinated neural sheath of the nerves (1). Tumours can occur in various places, such as the head, neck, extremities, retroperitoneum, and psoas muscle (2,3).…”

Section: Introductionmentioning

confidence: 99%

Clinical features and outcomes of adrenal schwannoma: a study of 13 cases from a single centre

Henghai¹,

Ding

Lin³

et al. 2021

Endocrine Connections

View full text Add to dashboard Cite

Background: Adrenal schwannomas (AS) are extremely rare neoplasms. This study shares our experience regarding the diagnosis and operative management of AS. Methods: Clinical details, radiologic, laboratory, and pathologic findings as well as follow-up data were analyzed retrospectively for 13 AS patients who accepted surgery at a tertiary referral hospital in China between January 1, 1996, and December 31, 2017. Results: The mean age of the patients at diagnosis was 44.7 ± 13.7 years (range 19–62 years; male: female ratio, 1:1.16), of whom 7 patients had unilateral AS on the right side, and the remaining 6 on the left side. None of the cases were hormonally active. None of the 13 cases were diagnosed as AS by computed tomography imaging before the operation. Among the patients, 10 were asymptomatic. The mean preoperative size was 7.1 ± 3.2 cm (range 1.6–12.6 cm). All patients underwent surgery, with open adrenalectomy in 5 patients and laparoscopy in 8 patients. The mean tumor size on pathologic examination was 6.8 ± 3.0 cm (range 3.0–11.7 cm). The surgical specimens were confirmed by pathological examination. During a median follow-up of 60.8 ± 17.7 months, no patients showed recurrence or metastasis. Conclusion: The preoperative diagnosis of AS remains difficult despite the advances in imaging examinations. After complete resection, the prognosis of AS is excellent.

show abstract

Le schwannome rétropéritonéal. À propos d'un cas

Cited by 7 publications

References 3 publications

Retroperitoneal shwannoma: A case report

Retroperitoneal shwannoma: A case report

Schwannome benin primitif retrovesical : une tumeur très rare à propos d'un cas

Clinical features and outcomes of adrenal schwannoma: a study of 13 cases from a single centre

Contact Info

Product

Resources

About