Pitfalls in the diagnosis of craniopharyngioma: 2 case reports.

Two cases of craniopharyngioma with delayed diagnosis are presented. Patient 1 had mild visual loss that initially had been attributed to pigment epithelial detachment in the macular area. Patient 2 had blurred vision in the left eye, although visual acuity was 10/10 at both eyes. She had a history of a posttraumatic neurosurgical procedure and was treated for blepharospasm. Both patients had initially negative CT imaging. Visual field defects suggested a chiasmal lesion and incited to additional neuroradiological investigation. Magnetic resonance imaging revealed a craniopharyngioma in both cases.