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Kenichiro Sugita - One of the best experts on this subject based on the ideXlab platform.

  • primary Choroid Plexus Papilloma located in the suprasellar region case report
    Neurosurgery, 1992
    Co-Authors: Masaaki Kimura, Masakazu Takayasu, Yoshio Suzuki, Makoto Negoro, Tetsurou Nagasaka, Nobuo Nakashima, Kenichiro Sugita
    Abstract:

    A 34-year-old woman with primary Choroid Plexus Papilloma occurring in the suprasellar region is reported. No connection with the ventricular system was found during intraoperative observations. The findings of pathological examinations such as hematoxylin and eosin staining, transthyretin (prealbumin) immunoreactivity, and electron microscopy were consistent with Choroid Plexus Papilloma. Radiologically, it was extremely difficult to differentiate from tuberculum sellae meningioma. To our knowledge, this is the first case of primary Choroid Plexus Papilloma in this location reported in the literature.

Juan Carlos Luque Suarez - One of the best experts on this subject based on the ideXlab platform.

  • Choroid Plexus Papilloma of the Fourth Ventricle: A Pediatric Patient.
    Asian journal of neurosurgery, 2019
    Co-Authors: Juan Esteban Muñoz Montoya, Miguel Ángel Maldonado Moran, Paula Santamaria Rodriguez, Sebastian Toro Lopez, Carlos Sayith Perez Cataño, Juan Carlos Luque Suarez
    Abstract:

    Choroid Plexus Papilloma is a low-frequency entity in both the adult and pediatric populations. Its clinical presentation is very variable as it depends on its location and length. We must always do the differential diagnosis between Papilloma and other intraventricular pathologies. This article is about a case report of a pediatric patient with a Choroid Plexus Papilloma located in the fourth ventricle, a location that is atypical for the pediatric population.

Stirling Carpenter - One of the best experts on this subject based on the ideXlab platform.

  • diffuse craniospinal seeding from a benign fourth ventricle Choroid Plexus Papilloma case report
    Journal of Neurosurgery, 1998
    Co-Authors: Richard Leblanc, Sabah Bekhor, D Melanson, Stirling Carpenter
    Abstract:

    ✓ Choroid Plexus Papillomas can metastasize to the subarachnoid space, but extensive metastasis has only been reported when the tumors are malignant. The authors report a case of diffuse, extensive metastasis to the craniospinal leptomeninges from a benign fourth ventricular Choroid Plexus Papilloma in an adult. This 19-year-old woman presented with a 2-year history of headache, blurred vision, diplopia, and ataxia. Magnetic resonance imaging of the brain and spinal cord revealed obstructive hydrocephalus caused by a 4-cm, partially calcified, inhomogeneously enhancing tumor of the fourth ventricle that was displacing the pons, medulla oblongata, and cerebellum. Innumerable cystic lesions of varying size were also seen in the cranial and spinal leptomeninges. Histological examination of the resected fourth ventricular tumor and of a few of the leptomeningeal lesions revealed a benign Choroid Plexus Papilloma and leptomeningeal Choroid Plexus cysts. This singular case of diffuse and extensive metastasis to...

  • diffuse craniospinal seeding from a benign fourth ventricle Choroid Plexus Papilloma case report
    Journal of Neurosurgery, 1998
    Co-Authors: Richard Leblanc, Sabah Bekhor, D Melanson, Stirling Carpenter
    Abstract:

    Choroid Plexus Papillomas can metastasize to the subarachnoid space, but extensive metastasis has only been reported when the tumors are malignant. The authors report a case of diffuse, extensive metastasis to the craniospinal leptomeninges from a benign fourth ventricular Choroid Plexus Papilloma in an adult. This 19-year-old woman presented with a 2-year history of headache, blurred vision, diplopia, and ataxia. Magnetic resonance imaging of the brain and spinal cord revealed obstructive hydrocephalus caused by a 4-cm, partially calcified, inhomogeneously enhancing tumor of the fourth ventricle that was displacing the pons, medulla oblongata, and cerebellum. Innumerable cystic lesions of varying size were also seen in the cranial and spinal leptomeninges. Histological examination of the resected fourth ventricular tumor and of a few of the leptomeningeal lesions revealed a benign Choroid Plexus Papilloma and leptomeningeal Choroid Plexus cysts. This singular case of diffuse and extensive metastasis to the craniospinal leptomeninges from a histologically benign fourth ventricular Papilloma adds to the available information about the biological potential of these tumors and expands the differential diagnosis of posterior fossa lesions with subarachnoid metastasis.

Guido Monga - One of the best experts on this subject based on the ideXlab platform.

  • Primary Choroid Plexus Papilloma of the sacral nerve roots.
    Journal of neurosurgery. Spine, 2009
    Co-Authors: Renzo Boldorini, Gabriele Panzarasa, Paola Girardi, Guido Monga
    Abstract:

    The authors describe a unique case of a Choroid Plexus Papilloma of the sacral nerve roots. This 60-year-old woman was admitted to the hospital because of a 1-year history of sacral pain, rectal and urinary bladder retention, and paradoxical episodic incontinence. Physical examination revealed sensory abnormalities in the S-2 dermatomes and poor rectal and bladder sphincter contractions. Contrast-enhanced spinal MR imaging showed a well-circumscribed, ovoid, homogeneously enhancing mass at the S1-2 level suggesting a diagnosis of ependymoma or schwannoma, and surgery allowed the identification and complete removal of a soft gray mass intimately adhering to the sacral nerve roots. Histological examination revealed a tumor consisting of papillary structures lined by a single layer of columnar cells, with an immunophenotype that satisfied the diagnostic criteria of Choroid Plexus Papilloma. After diagnosis, contrast-enhanced brain MR imaging excluded the presence of a primary Choroid Plexus Papilloma in the cerebral ventricles, thus ruling out a drop metastasis along the CSF pathways. A review of the literature did not reveal any similar cases of Choroid Plexus Papilloma, and so the authors also discuss the inclusion of primary or metastatic papillary tumors in this unusual location as part of the differential diagnosis.

Peter E Konrad - One of the best experts on this subject based on the ideXlab platform.

  • delayed occurrence of multiple spinal drop metastases from a posterior fossa Choroid Plexus Papilloma case report
    Journal of Neurosurgery, 2006
    Co-Authors: Tom Yao, John Spooner, Jennifer R Stumph, Ray Hester, Peter E Konrad
    Abstract:

    Choroid Plexus Papilloma is a benign central nervous system tumor that occasionally spreads along the subarachnoid space. The authors report the case of a 49-year-old man who presented with back pain 19 years after resection of a posterior fossa Choroid Plexus Papilloma. Magnetic resonance imaging revealed multiple spinal lesions without any residual or recurrent intracranial tumor. All spinal lesions were resected and histologically diagnosed as atypical Choroid Plexus Papilloma. The authors suggest that patients in whom Choroid Plexus Papilloma is diagnosed should undergo total neuraxis imaging at the time of initial diagnosis as well as periodic follow-up examinations after resection to rule out drop metastases.