Fronto-orbital leptomeningeal cyst manifested with exophthalmus.

A 41-year-old female patient with fronto-orbital leptomeningeal cyst is presented. After decompression of the cyst, repair of bone and dura defects were achieved with autogenous bone grafts and pericranial flap. Our case was very interesting in several aspects: a head trauma at 3 years of age and manifestation of clinical symptoms (headaches and exophthalmia) after almost 4 decades that had been progressive for 6 months and a rare location (fronto-orbital region) that required a special management. A thorough history is crucial in such cases because clinical symptoms might appear after decades. An old fracture that is surrounded by thin calvarial tissue in conjunction with intracranial cystic formation should make one take a leptomeningeal cyst into consideration in differential diagnosis. Extensive dissection and adequate access osteotomies followed by repair with autologous and vascular tissues are the key factors for a successful outcome in the management of fronto-orbital pathologies.