Simultaneous expansion of pseudomeningocele and development of remote subdural hygroma: A new phenomenon [Ayni{dotless} anda psödomeningosel büyümesi ve uzak yerleşimli subdural higroma gelişimi: Yeni bir fenomen]

Development of subdural hygroma (sdg) distant from primary neurosurgery is uncommon. we present a rare relationship between remote supratentorial extension of a local sdg and expansion of an infratentorial pseudomeningocele following resection of a cerebellar hemangioblastoma in a 61-year-old female with von hippel-lindau disease. initial magnetic resonance imaging showed a cystic hemangioblastoma in the right cerebellum with mass effect on the brain stem. the patient undertook median suboccipital craniectomy with duraplasty followed by development of bilateral retrocerebellar sdg and a pseudomeningocele beneath the dural graft. nineteen days after the operation,a remote sdg appeared supratentorially with concurrent interval growth of the pseudomeningocele. early management of the growing pseudomeningocele may minimize the occurrence of remote sdg as a post-operative complication.