Seesaw nystagmus caused by giant pituitary adenoma: case report

Arquivos de Neuro-Psiquiatria

Frederico Castelo Moura¹  Allan Christian Pieroni Gonçalves¹  Mário Luiz Ribeiro Monteiro¹ 

[1] ,University of São Paulo Medical School Hospital das ClínicasSão Paulo SP ,Brazil

关键词: pituitary tumor;    giant pituitary adenoma;    bitemporal hemianopia;    nystagmus;    seesaw nystagmus;    tumor pituitário;    adenoma pituitário gigante;    hemianopsia bitemporal;    nistagmo;    nistagmo em gangorra;   

DOI  :  10.1590/S0004-282X2006000100030

来源: SciELO

【 摘 要 】

Giant pituitary adenomas are uncommonly large tumors, greater than 4 cm in size that can produces endocrine symptoms, visual loss and cranial nerve palsies. We report the rare occurrence of seesaw nystagmus as the presenting sign of giant pituitary adenoma. A 50-year-old man presented with headache associated with visual loss and seesaw nystagmus. Perimetry revealed bitemporal hemianopia and magnetic resonance imaging showed a giant pituitary adenoma. After surgery, nystagmus disappeared. Our case is relevant in understanding its pathogenesis since it documents seesaw nystagmus in a patient bitemporal hemianopia due to a large tumor but without mesencephalic compression.

【 授权许可】

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