431 results match your criteria Imaging in Choroid Plexus Papilloma

Rare Case of Pediatric Disseminated Choroid Plexus Papilloma: Literature Review and Call for Re-Classification.

Pediatr Neurosurg 2022 Jun 27. Epub 2022 Jun 27.

Introduction: Choroid plexus tumors are rare neuroectodermal tumors that arise from the choroid plexus. Choroid plexus papillomas (CPP) represent the lowest grade of these types of tumors and have a WHO grade I designation. Despite their typical low grade, some CPPs can exhibit aggressive behaviors including parenchymal invasion and dissemination throughout the neuro-axis. Read More

View Article and Full-Text PDF

Atypical Choroid Plexus Papilloma of the Fourth Ventricle in an Adult: A Case Report.

Cureus 2022 May 23;14(5):e25256. Epub 2022 May 23.

Department of Neurosurgery, Cedars-Sinai Medical Center, Maxine Dunitz Neurosurgical Institute, Los Angeles, USA.

Atypical choroid plexus papilloma (aCPP) is very rarely seen in adults. Here, we present the case of a 47-year-old male with several months of headache, nausea, dizziness, and imbalance who was found to have an enhancing mass of the fourth ventricle with imaging findings suggestive of likely ependymoma. The patient underwent suboccipital craniotomy with C1 laminectomy and telovelar approach for gross-total resection of the lesion, with final pathology demonstrating WHO grade II aCPP. Read More

View Article and Full-Text PDF

Magnetic Resonance Imaging of Unusual Neoplasms Related to Foramen of Luschka: A Review for Differential Diagnosis.

Indian J Radiol Imaging 2022 Mar 19;32(1):71-80. Epub 2022 Apr 19.

Department of Neurosurgery, Bahçeşehir University School of Medicine, Göztepe Medical Park Training and Education Hospital, Istanbul, Turkey.

There are many types of neoplasms in or around the foramen of Luschka (FL), and definitive diagnosis in some cases requires knowledge of imaging findings. The uncommon and challenging neoplasms with FL involvement considered in this study are exophytic brainstem glioma, primary glioblastoma of the cerebellopontine angle (CPA), primary anaplastic ependymoma of the CPA, choroid plexus papilloma of the FL, solitary FL choroid plexus metastasis, extraskeletal myxoid chondrosarcoma of the jugular foramen, paraganglioma of the jugular foramen, exostosis of the jugular foramen, psammomatous meningioma in the lateral cerebellar medullary cistern, epidermoid tumor of the fourth ventricle, and a hypoglossal schwannoma. These neoplasms may have overlapping clinical and imaging features, but some have relatively distinct imaging features. Read More

View Article and Full-Text PDF

Giant Pediatric Supratentorial Tumor: Clinical Feature and Surgical Strategy.

Front Pediatr 2022 26;10:870951. Epub 2022 Apr 26.

Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.

Purpose: To analyze the clinical character of giant pediatric supratentorial tumor (GPST) and explore prognostic factors.

Materials And Methods: We analyzed the clinical data comprising of 35 cases of GPST from a single center between January 2015 and December 2020. The tumor volume was measured by 3D slicer software based on preoperative magnetic resonance imaging (MRI). Read More

View Article and Full-Text PDF

Infantile Choroid Plexus Papilloma with Multiple Peritumoral Cysts.

World Neurosurg 2022 Jun 18;162:74-76. Epub 2022 Mar 18.

Department of Neurosurgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.

Infantile choroid plexus papilloma (CPP) associated with multiple peritumoral cysts is a rare variant of CPP, and clinical course and optimal management are largely unknown. A 9-month-old boy presented with a large solid tumor in the left lateral ventricle associated with multiple peritumoral cysts, arachnoid cysts, and hydrocephalus containing xanthochromic fluid with high protein content. Shrinkage of these cysts and resolution of hydrocephalus were achieved after total resection of the hypervascular solid part of the tumor. Read More

View Article and Full-Text PDF

"Benign" Choroid Plexus Papilloma with "Atypical" Transformation and Spinal Drop Lesions.

Neurol India 2021 Nov-Dec;69(6):1890-1892

Department of Histopathology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.

View Article and Full-Text PDF
January 2022

Isolated Lumbar Atypical Choroid Plexus Papilloma: A Case Report.

Turk Neurosurg 2022 ;32(3):508-512

Ankara University, School of Medicine, Department of Neurosurgery, Ankara, Turkey.

Aim: To report the first case of an isolated lumbar grade II atypical choroid plexus papilloma (CPP).

Case Report: A 42-year-old man was admitted to the hospital because of back and leg pain. No urinary or rectal dysfunction was detected. Read More

View Article and Full-Text PDF

Primary intraventricular tumors - Imaging characteristics, post-treatment changes and relapses.

Clin Imaging 2022 Feb 29;82:38-52. Epub 2021 Oct 29.

Sengkang General Hospital, Department of Radiology, 110, Sengkang Eastway, 544886, Singapore; Duke-NUS Medical School, 8 College Rd, 169857, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore. Electronic address:

Primary intraventricular neoplasms are rare tumors that originate from the ependymal or subependymal, septum pellucidum, choroid plexus and the supporting arachnoid tissue. Knowledge of the common locations of these tumors within the ventricular system, together with key imaging characteristics and presentation age, can significantly narrow the differential diagnosis. In 2016, the WHO reorganized the classification of several primary CNS tumors by combining histopathological and molecular data. Read More

View Article and Full-Text PDF
February 2022

Choroid Plexus Papilloma - Case Presentation.

Curr Health Sci J 2021 Apr-Jun;47(2):310-313. Epub 2021 Jun 30.

Clinic of Radiology, University Clinical Center of Kosovo, Kosovo.

Aim: Choroid plexus papilloma (CPP) according to the latest WHO classification system in 2016 are an uncommon, benign (WHO grade I) neuroepithelial intraventricular tumor derived from choroid plexus epithelium, which can occur in both the pediatric and adult population. These tumors account for approximately 1% of all brain tumor 2-6% of pediatric brain tumors and 0.5% of adult brain tumors. Read More

View Article and Full-Text PDF

Persistence of communicating hydrocephalus post choroid plexus tumor resection: Case reports and review of literature.

Surg Neurol Int 2021 30;12:483. Epub 2021 Sep 30.

Department of Pathology, King Saud University, Riyadh, Saudi Arabia.

Background: Hydrocephalus is the most common presentation of choroid plexus tumors; it is thought to be caused either by mass effect obstructing the cerebrospinal fluid pathways or secretory properties of the tumor. In these case reports, we present two cases of choroid plexus tumors with persistence of communicating hydrocephalus postoperatively and review similar reports in the literature.

Case Description: Case 1: a 2-month-old baby girl presented with bulging fontanelle, sunsetting eyes. Read More

View Article and Full-Text PDF
September 2021

The use of exoscope combined with tubular retractor system for minimally invasive transsulcal resection of an ventricular atrium atypical choroid plexus papilloma: Three-dimensional operative video.

Surg Neurol Int 2021 6;12:444. Epub 2021 Sep 6.

Department of Neurosurgery, Loma Linda University School of Medicine, Loma Linda, California, United States.

Background: Choroid plexus papilloma represents 1-4% of pediatric brain tumors, mostly located in the ventricular atrium.[1] Intraventricular tumors represent a challenge due to the poor visualization of the surgical field and damage to surrounding structures.[2] Use of tubular retraction reduces cerebrovascular trauma to the surrounding parenchyma by distributing pressure uniformly, allowing less invasive corticotomy, and more stability on surgical corridors that allow the surgeon to use both hands and external visualization devices. Read More

View Article and Full-Text PDF
September 2021

Atypical choroid plexus papilloma: A case report.

Yanyan Chen Jun Luo

Asian J Surg 2022 Jan 12;45(1):544-545. Epub 2021 Oct 12.

Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China. Electronic address:

View Article and Full-Text PDF
January 2022

Paediatric atypical choroid plexus papilloma: is adjuvant therapy necessary?

J Neurooncol 2021 Oct 16;155(1):63-70. Epub 2021 Sep 16.

Division of Paediatric Hematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.

Introduction: Choroid Plexus Tumours (CPTs) account for 1-4% of all brain tumours in children. Atypical choroid plexus papillomas (aCPPs) are a subset of these tumours, defined over a decade ago, yet no consensus exists on the optimal approach to their management.

Methods: We conducted a retrospective analysis of all patients treated for CPTs at the Hospital for Sick Children between January 1, 2000, and December 31, 2018, and focused on patients with aCPP. Read More

View Article and Full-Text PDF
October 2021

Management Strategies for Brain Tumors Diagnosed during Pregnancy: A Case Report and Literature Review.

Medicina (Kaunas) 2021 Jun 12;57(6). Epub 2021 Jun 12.

Department of Obstetrics and Gynecology, Kindai University Faculty of Medicine, Osakasayama 589-8511, Japan.

: Maternal brain tumors diagnosed during pregnancy are very rare, and their clinical course remains incompletely understood. We recently experienced a case of a brain tumor diagnosed at 30 weeks of gestation, and the treatment was initiated after delivery at 32 weeks of gestation. In this study, we reviewed case reports of brain tumors diagnosed during pregnancy, focusing on whether the brain tumor was treated during pregnancy or after termination of pregnancy and on the timing of therapeutic intervention. Read More

View Article and Full-Text PDF

Cerebello-pontine and Cerebello-medullary Fissure Choroid Plexus Papilloma in a Child - Case Report and Review of Literature.

Neurol India 2021 May-Jun;69(3):729-732

Department of Neurosurgery, Institute of Neurosciences and Spine, MGM Healthcare, Chennai, Tamil Nadu, India.

Choroid plexus papillomas (CPP) are commonly seen in the supratentorial compartment in children and only very rarely in the posterior fossa. CPP in the cerebello-pontine angle and cerebello-medullary fissure (CPA) in the pediatric age group are extremely rare with only seven previous cases reported in literature. The authors present the case of a 7-year-old girl who presented with neck tilt, imbalance, and headache. Read More

View Article and Full-Text PDF

Lateral ventricular medulloepithelioma in children: a case report.

Transl Pediatr 2021 Apr;10(4):1020-1025

Department of Neurosurgery, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China.

Medulloepithelioma is an extremely rare highly malignant and rapidly growing tumor that occurs in the central nervous system. There are few reports of medulloepithelioma located in the ventricle. Medulloepithelioma is common in young children and adolescence. Read More

View Article and Full-Text PDF

Pre-operative embolization for staged treatment of infantile choroid plexus papilloma.

Childs Nerv Syst 2022 02 19;38(2):429-433. Epub 2021 May 19.

Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, TN, USA.

Choroid plexus papillomas (CPPs) are benign but rare neuroepithelial neoplasms of the choroid plexus that represent the non-malignant form of a spectrum of tumors of the choroid plexus. The vast majority of CPPs present in children under 5 years of age. Some CPPs are diagnosed prenatally, but many of them reach a large size before diagnosis. Read More

View Article and Full-Text PDF
February 2022

Intraventricular meningioma admixed with choroid plexus papilloma: a rare case report with review of literature.

Int J Clin Exp Pathol 2021 15;14(4):545-550. Epub 2021 Apr 15.

Department of Pathology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University Seoul, Republic of Korea.

A 42-year-old male presented with a history of headaches for the previous 2 weeks. Magnetic resonance imaging of the brain showed a 3 cm-sized well-defined, enhancing mass in the atrium of the right lateral ventricle. The tumor comprised two heterogeneous components: approximately one-third of the tumor exhibited complex and delicate papillary fibrovascular cores lined with uniform cuboidal-to-columnar epithelial cells, whereas the remaining part was seen as a solid sheet comprising ovoid-to-spindle cells with plump cytoplasm, which occasionally had a whorling pattern. Read More

View Article and Full-Text PDF

Intracranial Choroid Plexus Carcinomas: Report of 11 Cases from a Single Institution.

World Neurosurg 2021 08 20;152:e45-e50. Epub 2021 Apr 20.

Department of Neurosurgery, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.

Background: Choroid plexus carcinoma is a central nervous system tumor pathologically corresponding to World Health Organization grade III. Choroid plexus carcinoma mainly affects pediatric patients with a poor prognosis. Due to its rarity, standardized treatment has not yet been outlined. Read More

View Article and Full-Text PDF

Bilateral Choroid Plexus Papillomas Diagnosed by Prenatal Ultrasound and MRI.

Cureus 2021 Mar 6;13(3):e13737. Epub 2021 Mar 6.

Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, USA.

We present a rare prenatal diagnosis of bilateral choroid plexus papillomas by obstetrical ultrasound and fetal MRI at 20 weeks 6 days gestation. The fetus demonstrated bilateral enlarged, echogenic choroid plexus with increased Doppler flow suggestive of vascularized choroid tissue. Same-day fetal MRI demonstrated that the choroid plexus appeared enlarged bilaterally without definite hemorrhage. Read More

View Article and Full-Text PDF

Intra-fourth-ventricular choroid plexus papilloma miming ependymoma.

Clin Ter 2021 Mar;172(2):99-103

Department of Radiology, Hanoi Medical University, Ha Noi, Vietnam.

Abstract: Choroid plexus papilloma (CPP), a low incidence central nervous system (CNS) tumor, typically develops as an intraventricular neoplasm arising from the epithelium of the choroid plexus. Infratentorial CPP is predominantly clustered in adults with roughly 70% in the fourth ventricle, while supratentorial CPP commonly found in the lateral ventricles, is the most frequent location in children. The clinical and imaging features of CPP are not typical and may induce the misdiagnosis as other types of primary brain tumors. Read More

View Article and Full-Text PDF

Surgical management of choroid plexus papilloma of the cerebellopontine and cerebellomedullary angle: classification and strategy.

Neurosurg Rev 2021 Dec 24;44(6):3387-3397. Epub 2021 Feb 24.

Department of Neurosurgery, University of Tuebingen, Hoppe-Seyler-Str. 3, 72076, Tuebingen, Germany.

Choroid plexus papillomas (CPPs) are primary neuroectodermal neoplasms that usually arise in the fourth ventricle in adults. In this study, we present 12 patients with CPP arising from the cerebellopontine angle (CPP-CPA) and/or of the cerebellomedullary angle (CPP-CMA) that were treated in our department. Patients who underwent surgery for the treatment for CPP-CPA/CMA from January 2004 to March 2020 were identified by a computer search of their files from the Department of Neurosurgery, Tübingen. Read More

View Article and Full-Text PDF
December 2021

Molecular insights into malignant progression of atypical choroid plexus papilloma.

Cold Spring Harb Mol Case Stud 2021 02 19;7(1). Epub 2021 Feb 19.

Department of Pediatrics, Michigan Medicine, University of Michigan, Ann Arbor, Michigan 48109, USA.

Choroid plexus tumors are rare pediatric neoplasms ranging from low-grade papillomas to overtly malignant carcinomas. They are commonly associated with Li-Fraumeni syndrome and germline mutations. Choroid plexus carcinomas associated with Li-Fraumeni syndrome are less responsive to chemotherapy, and there is a need to avoid radiation therapy leading to poorer outcomes and survival. Read More

View Article and Full-Text PDF
February 2021

CSF Rhinorrhea: A Rare Clinical Presentation of Choroid Plexus Papilloma.

Curr Oncol 2021 01 31;28(1):750-756. Epub 2021 Jan 31.

Radiation Oncology Division, The Ottawa Hospital-University of Ottawa, Ottawa, ON K1H 8L6, Canada.

Choroid plexus papilloma (CPP) is a rare brain tumour occurring mostly in infants and children. Most CPPs are intraventricular and present with symptoms and signs of increased intracranial pressure (ICP). This case report describes a middle-aged female who presented with spontaneous cerebrospinal fluid (CSF) rhinorrhea from a tumour located in the cerebellopontine angle (CPA). Read More

View Article and Full-Text PDF
January 2021

Incidental Findings on Brain Magnetic Resonance Imaging (MRI) in Pediatric Endocrine Patients.

Endocr Pract 2020 Oct;26(10):1105-1114

From the Pediatric Endocrinology and Diabetes Unit, Tel-Aviv, Israel.

Objective: To explore incidental findings on brain magnetic resonance imaging (MRI) studies of pediatric patients referred due to endocrine disorders.

Methods: A retrospective, observational study conducted in a tertiary referral center. The neuroimaging database of 17,445 brain MRI studies of 11,011 pediatric patients were searched for cases with endocrine referrals and without medical history of malignancy, genetic syndromes, and/or neurologic comorbidities. Read More

View Article and Full-Text PDF
October 2020

Synchronous choroid plexus papilloma and Wilms tumor in a girl, disclosing a Li-Fraumeni syndrome.

Hered Cancer Clin Pract 2021 Jan 6;19(1). Epub 2021 Jan 6.

Laboratory of Molecular Oncology, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain.

Background: Li-Fraumeni Syndrome (LFS) is a cancer predisposition syndrome characterized by the early-onset of multiple primary cancers which can occur at different moments (metachronous onset) or, more rarely, coincidentally (synchronous onset). Here we describe a previously unreported patient with presentation of synchronous Wilms tumor and Choroid plexus papilloma, leading to the diagnosis of a Li-Fraumeni Syndrome (LFS).

Case Presentation: A 6-year-old girl without previous complains presented with abdominal pain. Read More

View Article and Full-Text PDF
January 2021

Spinal drop of atypical choroid plexus papilloma in an adult patient: A case report and literature review.

Surg Neurol Int 2020 25;11:409. Epub 2020 Nov 25.

Department of Neurosurgery, Hospital Central Sur de Alta Especialidad PEMEX, Tlalpan, Ciudad de Mexico, Mexico.

Background: Choroid plexus papillomas (CPPs) are benign extra-axial tumors that originate from the choroid plexus; these tumors rarely have metastases, being at the spinal level the location with few reported cases.

Case Description: We report the case of a 48-year-old man with a history of atypical fourth ventricular CPP and gross total resection (GTR) in 2008. In 2015, he presented with radicular pain, decreased strength, and paresthesia in the left leg. Read More

View Article and Full-Text PDF
November 2020

Pediatric atypical choroid plexus papilloma: Clinical features and diagnosis.

Clin Neurol Neurosurg 2021 01 4;200:106345. Epub 2020 Nov 4.

Department of Pediatric Neurosurgery, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China. Electronic address:

Objective: Atypical choroid plexus papilloma (aCPP) is a newly introduced subtype of choroid plexus tumors (CPTs) defined by the World Health Organization (WHO) in 2007 and is characterized by intermediate characteristics between choroid plexus papilloma (CPP) and choroid plexus carcinoma (CPC). Currently, the available data describing the clinical features of aCPP in children are limited.

Methods: We performed a retrospective review of 24 pediatric patients with CPTs in our institute and focused on the clinical, radiological and histopathological features of 9 patients with aCPP. Read More

View Article and Full-Text PDF
January 2021

Transcallosal Removal of a Choroid Plexus Tumor From the Lateral Ventricle in a Dog. Case Report.

Front Vet Sci 2020 29;7:536. Epub 2020 Sep 29.

National Institute of Clinical Neurosciences, Budapest, Hungary.

A 6-years-old female Staffordshire terrier was referred for periodic generalized seizures and asymmetric visual deficits. Magnetic resonance imaging revealed a 23.2 × 19. Read More

View Article and Full-Text PDF
September 2020

Ascites: a loadstar for the diagnosis and management of an intracranial tumor.

Turk J Pediatr 2020 ;62(5):863-867

Departments of Neurosurgery, University of Health Sciences Ankara Health Research and Application Center, Ankara, Turkey.

Background: Ascites is defined as abnormal fluid retention in the peritoneal cavity and it can be encountered at any age including fetal life. Ascites mostly results from cirrhosis, chronic renal disease and heart failure in childhood. However, there are various reasons for cirrhotic and non-cirrhotic ascites in the pediatric age. Read More

View Article and Full-Text PDF