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Extraventricular neurocytoma of the sellar region: report of two cases and literature review

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机构: [1]Capital Med Univ, Beijing Tiantan Hosp, Dept Neurosurg, 6 Tiantan Xili, Beijing, Peoples R China; [2]Beijing Neurosurg Inst, Dept Neuropathol, Beijing, Peoples R China
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关键词: Extraventricular neurocytoma sellar region pituitary adenoma

摘要:
Extraventricular neurocytoma (EVN) of the sellar region is a rare occurrence. To date, merely two reports concerning this tumor have been reported. In this report, we present two cases of EVN that occurred in the sellar region, and reviewed the pathological characteristics and treatment strategies for this disease. Two patients were admitted to our hospital for impaired vision. MRI scans indicated an enhanced invasive mass in the sellar region. One patient was treated via the subfrontal approach, and partial removal was achieved. The other patient was treated via the transsphenoidal approach by microscopy, and subtotal removal was achieved. Histologically, the tumor demonstrated typical features of neurocytoma, which presented nests, islands and strands of neuropil background. Immunohistochemistry (IHC) revealed diffuse Synaptophysin, MAP-2 and neurofilament positivity. Patients were diagnosed with EVN (WHO grade II) and adjuvant radiotherapy was given. In the present report, no loss of 1p/19q or atypical pathological feature was found. Furthermore, some of the molecular pathological characteristics of EVN were explored by literature review. Through these two cases, we confirm that EVN of the sellar region shares similar clinical pathological features with EVN of the other regions. Immunohistochemical examination is an effective method for the diagnosis of EVN. The preferred treatment for EVN of the sellar region is total removal by surgical approaches. Postoperative radiotherapy should be performed for tumors with atypical pathological features or when complete removal is not achieved.

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中科院(CAS)分区:
出版当年[2015]版:
大类 | 4 区 医学
小类 | 4 区 肿瘤学 4 区 病理学
最新[2023]版:
JCR分区:
出版当年[2014]版:
Q3 PATHOLOGY Q3 ONCOLOGY
最新[2023]版:
Q3 PATHOLOGY Q4 ONCOLOGY Q4 PATHOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2014版] 出版当年五年平均 出版前一年[2013版] 出版后一年[2015版]

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第一作者机构: [1]Capital Med Univ, Beijing Tiantan Hosp, Dept Neurosurg, 6 Tiantan Xili, Beijing, Peoples R China;
通讯作者:
通讯机构: [1]Capital Med Univ, Beijing Tiantan Hosp, Dept Neurosurg, 6 Tiantan Xili, Beijing, Peoples R China;
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