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Background. Hypothalamic lipomas are benign developmental lesions that tend to be discovered incidentally. This article describes the radiological features, outcome, and the postulated theories behind hypothalamic lipomas development. Methods. The electronic archive of neurosurgery was retrospectively reviewed. All patients with a neuroradiological diagnosis of hypothalamic lipoma, between 2005 and 2020, were included. Results. Out of 246 patients with intracranial lipomas, a total of six patients with hypothalamic lipomas have been identified. On computed tomography images, one of the hypothalamic lipomas demonstrated calcification. On magnetic resonance imaging, peripheral enhancement after contrast administration was noted in one of the lesions. Considering the benign nature of the lesions, neurosurgical intervention was not indicated. Conclusion. The majority of patients with hypothalamic lipomas are asymptomatic and undergo brain imaging for other indications. Although uncommon, such developmental lesions can be identified in the general population, especially with the advancement of neuroimaging techniques.

Superficial temporal artery pseudoaneurysms are uncommon but can be potentially life-threatening. Considering their rarity, the present article outlines the clinical presentation, radiological findings, intervention, and outcome of traumatic pseudoaneurysm of the superficial temporal artery. An 83-year-old female sustained a traumatic injury to the temple, resulting in right-sided swelling of the forehead. Brain computed tomography and cerebral angiogram revealed a right-sided homogenously-enhancing pseudoaneurysm in the frontal region. Successful occlusion of the lesion was achieved utilizing endovascular embolization. Three months after discharge, the patient reported no complaints or recurrence. Subsequent management included reassurance and observation with periodic clinical assessments. The unusual presentation of superficial temporal artery pseudoaneurysms requires clinicians to have thorough knowledge on the clinical presentation, proper steps in diagnosis, and the approach of choice in management. Endovascular embolization of superficial temporal artery pseudoaneurysms remains a valid approach to achieve successful occlusion of the lesion.

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