• The Journal of the Korean bone and joint tumor society
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• v.20 no.2
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• pp.109-112
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• 2014

We experienced a case of 63 years old male patient who had synchronous rectus abdominis intramuscular schwannoma and chest wall lipoma. Schwannoma is rare benign tumor which derived from nerve sheath and mainly peripheral nerve of flexor part. The authors report rare synchronous schwannoma and lipoma development.

• Korean Journal of Head & Neck Oncology
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• v.24 no.2
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• pp.174-178
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• 2008

Background and Objectives：Peripheral nerve sheath tumors(PNSTs) are uncommon neoplasm in the head and neck region. The treatment of PNSTs is surgical removal, but excision cause neurologic complications. This study was performed to evaluate the proper diagnosis and treatment of PNSTs with our experiences. Subjects and Method：During the period from October 1994 to July 2007, 58 patients were diagonised with PNSTs in head and neck region. We reviewed medical records and imaging study retrospectively. Result：95%(55/58) of the PNSTs in head and neck were benign；5%(3/58) were malignant peripheralnerve sheath tumors(MPNSTs). 63%(37/58) were neurilemoma, 20%(17/20) were neurofibroma, 2%(1/58) was perineuroma. 55 patients underwent surgery. 80%(45/55) of cases were treated with excision. Enucleation was performed in 7(14%) patients. All cases of benign neurogenic tumors showed no recurrence. Among 3 of MPNSTs 2 patients were Von Recklinghausen’s disease and expired with regional recurrence and lung metastasis. Conclusion：The benign PNSTs can be treated with enucleation if possible and observation can be another choice to minimize neurologic sequele.

• Journal of Korean Academy of Oral and Maxillofacial Radiology
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• v.24 no.2
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• pp.461-466
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• 1994

신경초종은 신경초에서 발생되는 성장이 느린 양성 종양으로 단발성이며 드물다. 이 종양은 말초 신경,자율 신경,뇌신경의 Schwann세포에서 발생된다. 두경부 영역의 두개외 신경성 종양은 드물며 특히 타액선에서 발생되는 예는 드물다. 저자들은 20세 여자 환자에서 아래와 같은 소견을 나타내는 신경초종을 경험하였기에 보고하는 바이다. 1.주소는 좌측 악하선 부위의 종창이었으며 촉진시 3×4㎝의 단단한 종괴가 만져졌으나 동통이나 림프절병증은 없었다. 2. 일반방사선사진에서 종괴와 관련된 골변화는 없었으나 초음파 영상에서는 불균질한 반사 양상을 보이는 종괴가 좌측 악하선 영역에서 관찰되었다. 3. 자기공명영상으로 병소의 정확한 위치를 확인할 수 있었다. 병소의 경계는 명확하였으나 신호 강도는 균일하지 않았으며 T1 강조 영상에서는 근육과 유사한 신호 강도를 보였으나 T2 강조 영상에서는 근육보다 높은 신호 강도를 나타냈다. 4. 조직 병리학적으로 Antoni type B 부위보다는 A 부위가 지배적이었으며 Verocay body도 나타났다. 종양 세포는 anti-S-100 염색에 양성으로 반응하였다.

• Clinical and Experimental Pediatrics
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• v.51 no.2
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• pp.214-218
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• 2008

Neuroblastoma is one of the most common extracranial solid tumor of childhood, and treatment of refractory neuroblastoma remains a significant clinical problem. Iodine-131-metaiodobenzylguanidine ($^{131}I-MIBG$) therapy is an alternative approach to treat stage IV neuroblastoma. We report the palliative effect of $^{131}I-MIBG$ in three cases of relapsed neuroblastoma after autologous peripheral blood stem cell transplantation. $^{131}I-MIBG$ is an effective and relatively nontoxic palliative therapy resulting in reduction of pain and prolongation of survival.

• The Journal of the Korean bone and joint tumor society
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• v.11 no.1
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• pp.105-109
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• 2005

This journal reports three cases diagnosed with schwannomatosis in which no clinical symptoms of type 2 neurofibromatosis. The chief complain was pain. In adolescence and adult group, all masses were found. The locations were brachial plexus, popliteal fossa and hand. No hearing impairment, vertigo, tinnitus and visual disturbance was observed in any of the case. Family history was negative. In all cases, there was no evidence of vestibular schwannoma on cranial MRI imaging study. In all cases, Tinel sign was positive. Pathologic diagnosis was positive for schwannoma. Further study and case collection is needed to idenity the clinical manifestation, clinical course and genetic characteristic of schwannomatosis.

• 대한미세수술학회:학술대회논문집
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• 1992.11a
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• pp.69-69
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• 1992

• Korean Journal of Head & Neck Oncology
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• v.28 no.1
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• pp.37-41
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• 2012

The malignant peripheral nerve sheath tumor(MPNST) is an extremely rare soft tissue sarcoma of ectomesenchyme also known as malignant schwannoma or malignant neurilemoma. It is a highly malignant sarcoma, which is locally invasive, frequently leading to multiple recurrences and eventual metastatic spread. The peak incidence of this disease is known to arise in the seventh decades. In human body, trunk and extremities are the most commonly involved sites, and only 8-14% of all lesions appear in head and neck region. Because immunohistochemical staining is essential in final diagnosis. The authors report a case of malignant peripheral nerve sheath tumor in neck with hypopharyngeal cancer simultaneously on a review of the literature.

• Journal of the Korean Society of Radiology
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• v.82 no.1
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• pp.194-200
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• 2021

Schwannomas originate from Schwann cells, and they are the most common benign neoplasms of the peripheral nerves. They can occur in most parts of the body but have a predilection for the head, the neck, and the flexor aspects of the extremities. Pancreatic schwannomas are uncommon, and only a few cases have been reported in the English literature. Approximately two-thirds of pancreatic schwannomas undergo cystic degeneration, and they should be considered in the differential diagnosis of solid pancreatic tumors with cystic changes to facilitate accurate diagnosis and optimal treatment. We report a case of a pathologically proven schwannoma in the pancreatic tail with multiple cystic and hemorrhagic changes followed by a review of relevant literature.

• The Journal of the Korean bone and joint tumor society
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• v.8 no.3
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• pp.106-110
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• 2002

Ganglion cysts occurring within sheaths of peripheral nerves have been documented, but are relatively rare entities. The peroneal nerve at the level of the knee and proximal tibiofibular joint is most commonly involved. We report a case of the intraneural ganglion cyst in the peroneal nerve without neurologic deficit, which was excised sucessfully.

• The Journal of the Korean bone and joint tumor society
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• v.18 no.1
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• pp.41-44
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• 2012

Glomus tumor is a kind of vascular tumor that arises from the glomus body, which regulates skin temperature and is placed in the skin and the subcutaneous area. It is a benign tumor that usually presents in the subungal area. It is relatively common in areas other than the fingers, but its occurrence in peripheral nerves is known to be comparatively rare. We report our experience with a case of glomus tumor arising from the brachial plexus, a rare site of occurrence for glomus tumors.