Leukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological disease

Abstract Background Leukoencephalopathy with brain calcifications and cysts (LCC; also known as Labrune syndrome) is a rare genetic microangiopathy caused by biallelic mutations in SNORD118. The mechanisms by which loss-of-function mutations in SNORD118 lead to the phenotype of leukoencephalopathy,...

Full description

Bibliographic Details
Main Authors: Michelle Paff, Nardin Samuel, Noor Alsafwani, Darcia Paul, Phedias Diamandis, Seth A. Climans, Walter Kucharczyk, Mandy Yi Rong Ding, Andrew F. Gao, Andres M. Lozano
Format: Article
Language:English
Published: BMC 2022-01-01
Series:BMC Neurology
Subjects:
Online Access:https://doi.org/10.1186/s12883-021-02531-y
_version_ 1819229106600935424
author Michelle Paff
Nardin Samuel
Noor Alsafwani
Darcia Paul
Phedias Diamandis
Seth A. Climans
Walter Kucharczyk
Mandy Yi Rong Ding
Andrew F. Gao
Andres M. Lozano
author_facet Michelle Paff
Nardin Samuel
Noor Alsafwani
Darcia Paul
Phedias Diamandis
Seth A. Climans
Walter Kucharczyk
Mandy Yi Rong Ding
Andrew F. Gao
Andres M. Lozano
author_sort Michelle Paff
collection DOAJ
description Abstract Background Leukoencephalopathy with brain calcifications and cysts (LCC; also known as Labrune syndrome) is a rare genetic microangiopathy caused by biallelic mutations in SNORD118. The mechanisms by which loss-of-function mutations in SNORD118 lead to the phenotype of leukoencephalopathy, calcifications and intracranial cysts is unknown. Case presentation We present the histopathology of a 36-year-old woman with ataxia and neuroimaging findings of diffuse white matter abnormalities, cerebral calcifications, and parenchymal cysts, in whom the diagnosis of LCC was confirmed with genetic testing. Biopsy of frontal white matter revealed microangiopathy with small vessel occlusion and sclerosis associated with axonal loss within the white matter. Conclusions These findings support that the white matter changes seen in LCC arise as a consequence of ischemia rather than demyelination.
first_indexed 2024-12-23T11:07:54Z
format Article
id doaj.art-5ca03fa18bd84c048808dd4b3d6b62b0
institution Directory Open Access Journal
issn 1471-2377
language English
last_indexed 2024-12-23T11:07:54Z
publishDate 2022-01-01
publisher BMC
record_format Article
series BMC Neurology
spelling doaj.art-5ca03fa18bd84c048808dd4b3d6b62b02022-12-21T17:49:26ZengBMCBMC Neurology1471-23772022-01-012211610.1186/s12883-021-02531-yLeukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological diseaseMichelle Paff0Nardin Samuel1Noor Alsafwani2Darcia Paul3Phedias Diamandis4Seth A. Climans5Walter Kucharczyk6Mandy Yi Rong Ding7Andrew F. Gao8Andres M. Lozano9Department of Neurological Surgery, University of California IrvineDivision of Neurosurgery, Department of Surgery, University Health NetworkLaboratory Medicine Program, University Health NetworkDivision of Neurosurgery, Department of Surgery, University Health NetworkLaboratory Medicine Program, University Health NetworkDivision of Neurology, Department of Medicine, University Health NetworkJoint Department of Medical Imaging, University Health Network, University of TorontoDivision of Neurology, Department of Medicine, University Health NetworkLaboratory Medicine Program, University Health NetworkDivision of Neurosurgery, Department of Surgery, University Health NetworkAbstract Background Leukoencephalopathy with brain calcifications and cysts (LCC; also known as Labrune syndrome) is a rare genetic microangiopathy caused by biallelic mutations in SNORD118. The mechanisms by which loss-of-function mutations in SNORD118 lead to the phenotype of leukoencephalopathy, calcifications and intracranial cysts is unknown. Case presentation We present the histopathology of a 36-year-old woman with ataxia and neuroimaging findings of diffuse white matter abnormalities, cerebral calcifications, and parenchymal cysts, in whom the diagnosis of LCC was confirmed with genetic testing. Biopsy of frontal white matter revealed microangiopathy with small vessel occlusion and sclerosis associated with axonal loss within the white matter. Conclusions These findings support that the white matter changes seen in LCC arise as a consequence of ischemia rather than demyelination.https://doi.org/10.1186/s12883-021-02531-yLabrune syndromeLeucoencephalopathyIntracranial cystsIntracranial calcificationsCase report
spellingShingle Michelle Paff
Nardin Samuel
Noor Alsafwani
Darcia Paul
Phedias Diamandis
Seth A. Climans
Walter Kucharczyk
Mandy Yi Rong Ding
Andrew F. Gao
Andres M. Lozano
Leukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological disease
BMC Neurology
Labrune syndrome
Leucoencephalopathy
Intracranial cysts
Intracranial calcifications
Case report
title Leukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological disease
title_full Leukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological disease
title_fullStr Leukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological disease
title_full_unstemmed Leukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological disease
title_short Leukoencephalopathy with brain calcifications and cysts (Labrune syndrome) case report: diagnosis and management of a rare neurological disease
title_sort leukoencephalopathy with brain calcifications and cysts labrune syndrome case report diagnosis and management of a rare neurological disease
topic Labrune syndrome
Leucoencephalopathy
Intracranial cysts
Intracranial calcifications
Case report
url https://doi.org/10.1186/s12883-021-02531-y
work_keys_str_mv AT michellepaff leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT nardinsamuel leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT nooralsafwani leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT darciapaul leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT phediasdiamandis leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT sethaclimans leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT walterkucharczyk leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT mandyyirongding leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT andrewfgao leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease
AT andresmlozano leukoencephalopathywithbraincalcificationsandcystslabrunesyndromecasereportdiagnosisandmanagementofarareneurologicaldisease