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Giant pituitary macroadenoma of stem cell origin: illustrative case

David T. Asuzu, Rebecca M. Burke, Jeffrey Hakim, Dylan Coss, Min S. Park, Spencer C. Payne, and John A. Jane Jr.

coherence tomography to predict visual outcome in parachiasmal meningioma . J Neurosurg . 2015 ; 123 ( 6 ): 1489 – 1499 . 10.3171/2014.12.JNS141549

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Primary hypothyroidism presenting as neuropsychiatric symptoms and pituitary enlargement in a young woman: illustrative case

Shanzay Haider, Kelsey Templeton, S. Bulent Omay, and Silvio E. Inzucchi

Enlargement of the sellar contents in an adult patient is most often associated with neoplasia, with pituitary adenomas accounting for approximately 80%–90% of all such masses. 1 , 2 In fact there is a high prevalence of nonfunctioning, benign pituitary adenomas, the vast majority being microadenomas, reported in up to 20% in the general population. 2–4 Other pathological causes of pituitary enlargement include cysts, craniopharyngiomas, or meningiomas. However, physiological enlargement of the pituitary gland can also occur, stemming from several causes

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Repair of internal carotid artery injury with aneurysm clip during endoscopic endonasal surgery: illustrative case

David Fustero de Miguel, Laura Beatriz López López, Amanda Avedillo Ruidíaz, Javier Orduna Martínez, Juan Casado Pellejero, and Jesús Adrián Moles Herbera

, except for the case of a petroclival meningioma published by Gardner et al. in 2016. 13 In that paper, some images of the procedure are shown without details regarding the technique, the long-term follow-up, or the patient functional status. The use of extended endoscopic endonasal approaches for microsurgical clipping of intracranial aneurysms has been reported previously. 24 , 25 Nevertheless, this technique is reserved for well-selected patients under the care of highly experienced teams. 9 Regardless, this article shows the possibility of treating an acute

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Chronic lymphocytic leukemia/small lymphocytic lymphoma arising in the pituitary gland: illustrative case

Hang Zhou, Xiaowei Zhang, Xin Jia, Liang Jia, and Qingjiu Zhang

.1%), meningiomas (0.94%), metastatic tumors (0.6%), and chordomas (0.5%), although other rare lesions have also been detected (6.0% in total). 1–3 Primary central nervous system lymphoma is relatively rare. Because of the absence of intracranial lymphoid structures, it is now generally accepted that the lesions originate from primitive mesenchymal cells of the ventricular ectoderm, soft meningeal histiocytes, and microglia and that they are predominantly non-Hodgkin’s lymphomas, most often of B-cell origin. The majority of lesions occur in the brain parenchyma, spinal cord

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A sellar-suprasellar malignant optic pathway glioblastoma in the absence of prior radiation therapy: illustrative case

Mestet Yibeltal Shiferaw, Tsegazeab Laeke Teklemariam, Abenezer Tirsit Aklilu, Dejen Teke Gebrewahd, Bereket Hailu Mekuria, Ermias Fikru Yesuf, and Taye Jemberu Robele

-grade glioma. 6 , 12 This finding contrasts with our case, because our patient presented at 19 years of age; it is an extremely rare event for a GBM to develop elsewhere in the brain let alone the sellar-suprasellar area. The differential diagnosis includes pituitary adenomas, the most common tumors in the sellar region, followed by craniopharyngiomas and Rathke cleft cysts and, less commonly, meningiomas, germinomas, hamartomas, and metastatic tumors. On the contrary, malignant sellar gliomas are very rare, and only a few cases of suprasellar malignant gliomas have been

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Cerebral vasospasm as a consequence of pituitary apoplexy: illustrative case

Somayah Alsayadi, Rafael Ochoa-Sanchez, Ioana D. Moldovan, and Fahad Alkherayf

, craniopharyngiomas, meningiomas, Rathke’s cyst, lymphocytic hypophysitis). 1 , 2 , 4 , 6–10 , 12 , 21 , 23 , 26–31 Most of the reviewed cases (25 of 37; 67.6%) were pituitary adenomas complicated postoperatively with cerebral vasospasm ( Table 1 ). 1 , 2 , 4 , 6–10 , 12 , 21 , 23 , 26–29 Only 8 out of the 25 reviewed pituitary adenoma cases underwent EETS ( Table 1 ). 1 , 2 , 10 , 12–15 Half of these patients were female (4 of 8; 50%). The mean age was 50 years (standard deviation ±17, range 23–75). The EETS resection of pituitary adenoma was complicated with SAH in five (62