title: Development of a cavum septi pellucidi after Ommaya reservoir placement: report of an unusual complication.
abstract: Objective and importance. We present a complication of Ommaya reservoir placement that has not been previously reported. Following injection of a seemingly appropriately placed catheter, the patient developed seizures. Imaging studies showed the development and resolution of a cavum septi pellucidi. This case illustrates that the septum pellucidum is made of two layers and that a potential space exists between these layers. Caution is recommended when injecting a single-hole ventricular catheter if the tip is against the septum pellucidum.
authors.affiliation: Johns Hopkins Medical Institution, Russell H. Morgan Department of Radiology and Radiological Sciences, Division of Neuroradiology, Baltimore, MD, USA. paul.sherman@usafa90.com
authors.forename: P M
authors.initials: PM
authors.lastname: Sherman
authors.forename: N
authors.initials: N
authors.lastname: Aygun
mesh_terms: D000328:Adult; D000964:Antimetabolites, Antineoplastic / Q000009:adverse effects; D001932:Brain Neoplasms / Q000188:drug therapy / Q000556:secondary; D002051:Burkitt Lymphoma / Q000188:drug therapy; D002408:Catheters, Indwelling / Q000009:adverse effects; D002555:Cerebrospinal Fluid / Q000502:physiology; D015170:Cerebrospinal Fluid Pressure / Q000502:physiology; D003561:Cytarabine / Q000009:adverse effects; D064420:Drug-Related Side Effects and Adverse Reactions; D004830:Epilepsy, Tonic-Clonic / Q000209:etiology; D006801:Humans; D015918:Infusion Pumps, Implantable / Q000009:adverse effects*; D007276:Injections, Intraventricular / Q000009:adverse effects* / Q000295:instrumentation; D020547:Lateral Ventricles / Q000000981:diagnostic imaging / Q000502:physiology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D011183:Postoperative Complications / Q000209:etiology* / Q000503:physiopathology / Q000517:prevention & control; D012086:Reoperation; D012688:Septum Pellucidum / Q000000981:diagnostic imaging / Q000293:injuries* / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D000964:Antimetabolites, Antineoplastic; D003561:Cytarabine