Posterior fossa syndrome with delayed MR evidence of unilateral superior cerebellar peduncle (SCP) damage.
Posterior fossa syndrome (PFS) is a well-known sequela of midline posterior fossa tumor resection. Patients typically exhibit transient behavioral, motor, and oculomotor disturbances that resolve within a few weeks to several months after surgery. The underlying pathophysiology of PFS is not completely understood, but contemporary literature has implicated injury to the dentate nucleus and/or exiting dentatothalamocortical fiber bundles as a causative factor. The authors present a case of a young male who developed a delayed variant of PFS typified by motor deficits and demonstrated diffusion restriction in the ipsilateral superior cerebellar peduncle. Because the correlation between PFS and the superior cerebellar peduncle injury is poorly described in the literature, particularly with regard to relevant radiographic imaging, the authors of this report hope their findings will contribute to that insufficient body of evidence.
Department of Neurosurgery, University of Texas Health Science Center at San Antonio, 7709 Floyd Curl Drive, Mail Code 7843, Medical School Building 102F, San Antonio, TX, 78229-3900, USA. carrk@uthscsa.edu.
Kevin
http://orcid.org/0000-0003-4419-9288
K
Carr
School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
Pegah
P
Ghamasaee
Department of Neuroradiology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
Achint
A
Singh
Department of Neurosurgery, University of Texas Health Science Center at San Antonio, 7709 Floyd Curl Drive, Mail Code 7843, Medical School Building 102F, San Antonio, TX, 78229-3900, USA.
Izabela
I
Tarasiewicz
D002648:Child; D003388:Cranial Fossa, Posterior / Q000473:pathology*; D006801:Humans; D006849:Hydrocephalus / Q000000981:diagnostic imaging / Q000473:pathology; D015192:Infratentorial Neoplasms / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D065837:Middle Cerebellar Peduncle / Q000473:pathology*; D019635:Neurosurgical Procedures / Q000009:adverse effects*; D011183:Postoperative Complications / Q000209:etiology* / Q000473:pathology*
Diffusion restriction; Posterior fossa syndrome