Purpose: To report a series of cases of non-obese familial idiopathic intracranial hypertension.
Observation: One father and three offsprings (two brothers and one sister) with idiopathic intracranial hypertension and different phenotypic presentations.
Conclusion and importance: Familial idiopathic intracranial hypertension may underrecognized and may not be associated with obesity. Symptomatic family members may need to be screened for IIH in some cases.
Keywords: Familial idiopathic intracranial hypertension; Idiopathic intracranial hypertension; Papilledema.
© 2022 The Authors.