title: [Fetal intracranial invasive cysts. Diagnosis, procedure and therapy using the example of a case report (arachnoid cyst)].
abstract: Changes of diagnosing foetal malformations via sonography are greatest with regard to the skull. Anencephalus or hydrocephalus are most frequent, whereas cysts are comparatively rare. In the case under report a large intracranial cyst was diagnosed during the 33rd week of pregnancy. After moderate size increase spontaneous birth of a normal boy occurred during the 38th week. Prenatal findings were confirmed post partum via diaphanoscopy, sonography, ventriculography and computed tomography. The definite diagnosis of the suspected arachnoidal cyst, however, could be established only at the age of 8 months on the occasion of craniotomy with fenestration of the cyst. The problems connected with prepartal and postpartal diagnosis of foetal intracranial cystic space-occupying growths and their management are shown on the basis of the case report and the references. Prenatally it is recommended to proceed along conservative and cautious lines. A warning is issued against exaggerated enthusiasm in trying to manage foetal malformations by means of interventions monitored by ultrasound.
mesh_terms: D001099:Arachnoid; D001927:Brain Diseases / Q000175:diagnosis*; D003399:Craniotomy; D003560:Cysts / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D011296:Prenatal Diagnosis; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
vernacular_title: Fetale intrakranielle zystische Raumforderungen. Diagnose, Vorgehen und Therapie anhand eines Fallberichtes (Arachnoidalzyste).