Symptomatic Bilateral Xanthogranuloma of the Choroid Plexus

Imaging of supratentorial intraventricular masses in children:a pictorial review- part 1

PURPOSE

This article is the first in a two-part series designed to provide a comprehensive overview of the range of supratentorial intraventricular masses observed in children. Our primary objective is to discuss the diverse types of intraventricular masses that originate not only from cells within the choroid plexus but also from other sources.

METHODS

In this article, we review relevant epidemiological data, the current genetics/molecular classification as outlined in the fifth edition of the World Health Organization's Classification of tumours of the Central Nervous System and noteworthy imaging findings. We conduct an exhaustive analysis of primary choroid plexus tumours as well as other conditions such as choroid plexus hyperplasia, choroid plexus cyst, choroid plexus xanthogranuloma, atypical teratoid rhabdoid tumour, meningioma, arteriovenous malformation and metastasis.

RESULTS

We comprehensively evaluated each supratentorial intraventricular mass, providing an in-depth analysis of their unique clinical and histological characteristics. The fifth edition of the World Health Organization Classification of Tumours of the Central Nervous System introduces major modifications. These important changes could potentially have a profound impact on the management strategies and subsequent outcomes of these tumours.

CONCLUSION

Intraventricular masses in children can arise from various sources. Surgical intervention is key for certain supratentorial intraventricular masses in paediatric patients, with preoperative neuroimaging essential to decide the best treatment approach, surgical or otherwise, as some cases may not require surgery.

Symptomatic bilateral choroid plexus xanthogranuloma in a pediatric patient

INTRODUCTION

Central nervous system xanthogranulomas are uncommon clinical entities, and symptomatic bilateral choroid plexus xanthogranulomas are rare.

CASE PRESENTATION

We present the case of a 15-year-old male patient with bilateral choroid plexus xanthogranulomas with symptoms of increased intracranial pressure. Gross total resection of the tumor in the left lateral ventricle was performed. The patient improved, and asymptomatic right-sided tumor was monitored at follow-up.

CONCLUSION

The main treatment objective in these tumors is gross total resection. Asymptomatic tumors can be followed without intervention. However, surgery should be performed for symptomatic tumors that cause hydrocephalus or symptoms of increased intracranial pressure.

Bilateral Xanthogranuloma of the Choroid Plexus in an Infant

Xanthogranuloma of the choroid plexus is a rare, usually incidentally detected and commonly bilateral intraventricular lesion found in the pediatric population. Its characteristic imaging features are described.

Levodopa-responsive parkinsonism in a patient with corticobasal degeneration and bilateral choroid plexus xanthogranulomas

Corticobasal degeneration (CBD) has substantial overlap of clinical features with other neurodegenerative diseases including Parkinson's disease (PD). Its clinical diagnostic accuracy is the lowest among the common neurodegenerative diseases, and its antemortem diagnosis is more challenging when CBD is comorbid with another brain disease. We report an elderly male patient with multiple medical conditions and a family history of essential tremor. He presented with progressive tremor that was initially thought to be essential tremor and later diagnosed as PD despite head computerized tomography showing bilateral intraventricular masses and other minor changes. The clinical diagnosis of PD was supported by his responsiveness to low-dose levodopa. However, postmortem neuropathological examination revealed CBD and bilateral choroid plexus xanthogranulomas with mild ventricular enlargement and multifocal ependymal lining injury presumably due to mild hydrocephalus. CBD is typically levodopa-unresponsive, but hydrocephalus-associated parkinsonism is commonly levodopa-responsive. We raise awareness of the present comorbidity and atypical parkinsonism due to the choroid plexus xanthogranuloma-induced hydrocephalus for the clinical diagnosis and management of parkinsonism.

Case Presentation: Unusual Association Between Possible Bilateral Intraventricular Xanthogranulomas, Postero-inferior Cerebellar Artery Aneurysm and Thrombophilia

Introduction: Xanthogranulomas are rare, benign, usually asymptomatic, cutaneous tumors most frequently seen in children (juvenile xanthogranulomas). Some lesions can be found accidentally at randomly performed cerebral computer tomography (CT) or magnetic resonance imaging (MRI) or even on autopsy.

Case report: We present the case of a 44 year-old woman, known with a thrombophilic disorder (PAI-1 gene mutation, MTHFR C677T and A1298C) on chronic anticoagulant treatment. The onset of symptoms was in 2010, when she presented paresthesia and lower limbs weakness. Two years later the patient presents with severe intermittent headache and left hemicrania and a cerebral angio-MRI is performed showing a left postero-inferior cerebellar artery aneurysm and two choroid plexus intraventricular masses in the lateral ventricles. The patient developed a new symptom, dysarthria in 2014 and in 2015 has multiple episodes of loss of consciousness, interpreted as epileptic seizures. Routine blood tests were within normal range, except for a high cholesterol level. The patient was tested for autoimmune, infectious, endocrine and metabolic diseases that were negative. Surgical treatment and biopsy from the lesion was proposed, however the patient refused both procedures.

Conclusions: There is an association between xanthogranulomas localization and the choroid plexus, the most frequent CNS origin being in the trigon of the lateral ventricle. Our case does not resemble with any other case published, mostly because the unusual presentation, symptomatology and the association between xanthogranulomas, thrombophilia and postero-inferior cerebellar artery aneurysm which were never reported before in other cases of xanthogranulomas from the literature.