World Neurosurg
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Case Reports
First report of coexistence of 2 ectopic pituitary tumors: Rathke cleft cyst and silent ACTH adenoma.
Rathke cleft cysts (RCCs) and pituitary adenomas (PAs) are thought to have a common embryonic ancestry; however, PAs with a concomitant RCC inside the sella turcica are rarely observed. Ectopic pituitary tumors are also rare. ⋯ To our knowledge, this is the first reported ectopic RCC located outside the sella turcica with a concomitant ACTH-staining PA. This also appears to be the first ACTH-staining adenoma concomitant with RCC reported in the literature, regardless of location, not presenting with Cushing disease. This case shows that we can now include pituitary adenoma with or without a concomitant RCC in the differential diagnosis of processes in the sphenoid sinus. As both PAs and RCCs are benign sellar lesions, surgical management of a concomitant occurrence of these tumors mainly depends on the size of the lesions and their clinical manifestations. For patients with PA and concomitant RCC, surgical resection should be considered, as there is an approximatrely 20% recurrence rate of the cyst after resection and the possibility of future clival erosion, if left untreated.
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Cerebral hydatid cyst is among the rare presentations of echinococcosis. Almost all the reported cases of intracranial hydatid cysts are in the cortical regions (parietal lobe in the territory of the middle cerebral artery), and all have been removed surgically using the water jet dissection technique. However, in locations in which there are several neuronal structures, such as the cerebellopontine angle, this method might not be applicable. ⋯ The Meckel cave and cerebellopontine angle are rare locations for hydatid cysts, and the surgical technique is different due to adhesion of the cyst to several neuronal structures (lower cranial nerve, brainstem, and cerebellum). Needle aspiration along with dissection of the cyst microsurgically is recommended in similar cases.
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Complications from lateral lumbar interbody fusion procedures range from neurologic deficits to organ and blood vessel injuries. Injury to the ureter has been reported though uncommon. The present study was performed to elucidate the anatomic relationship of the ureter to this surgical approach. ⋯ Owing to the proximity of the ureter to the lumbar vertebral bodies, it is imperative to verify that this structure is not in the surgical trajectory during lateral lumbar interbody fusion procedures if injury is to be avoided.
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Spontaneous thalamic hemorrhage has increased in incidence in recent years. Analysis of the characteristics of thalamic hemorrhage was based on the vascular territories of the thalamus. ⋯ The present study proposed a novel anatomic classification of thalamic hemorrhage according to the major thalamic vascular territories.
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The aim of the study is to report the feasibility, safety, and outcomes associated with endovascular treatment (EVT) of unruptured intracranial aneurysms (UIAs) under local anesthesia. ⋯ Local anesthesia in the EVT of UIA is feasible and safe. It could be considered as an alternative for the patients with high risk of general anesthesia.