JOURNAL ARTICLE

Trigeminal pain caused by a cerebellopontine-angle lipoma. Case report and review of the literature

C Alafaci, F M Salpietro, E Puglisi, E Tripodo, D Matalone, G Di Pietro, F Tomasello
Journal of Neurosurgical Sciences 2001, 45 (2): 110-3
11533536
A 16-year-old girl complained of 2-year history of right facial pain, episodic vertigo and progressive hearing loss in the right ear. The facial pain was described as an episodic lancinating event confined to the second and third branch of the right trigeminal nerve. Computed tomography and magnetic resonance imaging revealed a 2 cm lesion in the right cerebellopontine-angle. At surgery, a soft, yellowish mass was found incorporating the 7th and 8th cranial nerves. The anterior-inferior cerebellar artery (AICA) was displaced medially and pushed into the sensory portion of the trigeminal nerve root, causing vascular compression. The hearing loss remained unchanged. The trigeminal pain disappeared over a period of several weeks. Patients can be harmed in an attempt to remove these neurovascular nonmalignant, generally non growing, fatty vascular lumps. Only a partial, meticulous removal should be performed with a maximum effort to decompress the affected nerve.

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