1/115. dermatofibrosarcoma protuberans in an infant with a history of choroid plexus papilloma.We describe an infant with a dermatofibrosarcoma protuberans (DFSP) who also had a choroid plexus papilloma. This report underscores the occurrence of DFSP in this age group and may support a neural pathogenesis of this tumor.- - - - - - - - - - ranking = 1keywords = plexus (Clic here for more details about this article) |
2/115. Imaging features of intraventricular melanoma.We present the MR imaging findings in a patient with symptoms of increased intracranial pressure and a mass in the left lateral ventricle. The mass showed increased signal intensity on T1-weighted images and low signal intensity on T2-weighted images. The histologic diagnosis was that of melanoma, and detailed physical and funduscopic examinations disclosed no evidence of a primary lesion. We believe that the mass was a primary intraventricular melanoma, possibly arising from the choroid plexus, and we discuss the mechanisms that may be responsible for its occurrence in this location.- - - - - - - - - - ranking = 0.2keywords = plexus (Clic here for more details about this article) |
3/115. choroid plexus papilloma of cerebellopontine angle with extension to foramen magnum.A case of choroid plexus papilloma resembling meningioma of cerebellopontine (CP) angle with its extension to foramen magnum is presented. Occurrence of this tumour in CP angle is very rare. Its extension towards foramen magnum is further rare. It was a real diagnostic enigma preoperatively as the tumour was resembling meningioma upto some extent on radiological study. Retromastoid craniectomy with microsurgical excision of tumour and its extension was achieved in toto. Tumour was attached to few rootlets of lower cranial nerves which were preserved. Attachment of the tumour with lower cranial nerves again caused diagnostic confusion with neurofibroma intraoperatively.- - - - - - - - - - ranking = 1keywords = plexus (Clic here for more details about this article) |
4/115. June 1999--22 year old female with intraventricular mass.A 22 year old female presented with a single seizure. CT scan and craniotomy demonstrated an intraventricular papillary tumor with histologic and immunohistochemical features indicative of a choroid plexus carcinoma. Even though the occurrence of this neoplasm is exceptional beyond childhood, pathologists should considered a malignant choroid plexus tumor when postulating the differential diagnosis of intraventricular papillary neoplasms in adults.- - - - - - - - - - ranking = 0.4keywords = plexus (Clic here for more details about this article) |
5/115. Volumetric reduction of a choroid plexus carcinoma using preoperative chemotherapy.We report for the first time a measured volumetric reduction of a choroid plexus carcinoma utilizing preoperative chemotherapy. Histologically proven choroid plexus carcinoma was diagnosed in a fifteen month old female. She was treated with three courses of chemotherapy including etoposide (VP16), cyclophosphamide, vincristine, and cisplatin. Computer-assisted three dimensional reconstruction of the tumor volume was performed prior to and after three courses of chemotherapy. An overall reduction of 29.5% of tumor volume was accomplished preoperatively. Staged surgical procedures resulted in a complete resection of her lesion and she has remained disease-free for 31 months. A volumetric measurement as a response to preoperative chemotherapy may prove valuable in determining future optimal treatment regimens for choroid plexus carcinoma of childhood.- - - - - - - - - - ranking = 1.4keywords = plexus (Clic here for more details about this article) |
6/115. adult choroid plexus papilloma of the posterior fossa mimicking a hemangioblastoma. Case report.The authors report a case of cystic choroid plexus papilloma that originated in the posterior fossa. No connection with the ventricular system was found intraoperatively. Magnetic resonance (MR) and computerized tomography imaging did not furnish a diagnosis, but findings of pathological examinations were consistent with those of choroid plexus papilloma. The authors describe the different appearances of the tumor on MR images and discuss the differential diagnosis with other tumors of the posterior fossa.- - - - - - - - - - ranking = 1.2keywords = plexus (Clic here for more details about this article) |
7/115. choroid plexus metastasis from carcinoma of the bladder: case report and review of the literature.We present here a case report of a 40-year old male with adenocarcinoma of the bladder and solitary metastasis to the choroid plexus of the right lateral ventricle. This is the first such report of such a metastasis in association with bladder carcinoma. Systemic metastases frequently occur in patients with carcinoma of the bladder but involvement of central nervous system is relatively uncommon: less than 1% of patients with carcinoma of the bladder present an intracerebral metastasis. In the majority of cases there are either multiple CNS metastases or other distant metastases. A few cases present with solitary metastases to the CNS without evidence of recurrent or disseminated disease.- - - - - - - - - - ranking = 1keywords = plexus (Clic here for more details about this article) |
8/115. Usefulness of synaptophysin immunohistochemistry in an adult case of choroid plexus carcinoma.choroid plexus carcinoma in an adult case is a very rare tumor and difficult to differentiate from metastatic tumors. The authors report a case of a 49-year-old female with choroid plexus carcinoma who previously had multiple carcinomas. In this case, synaptophysin immunohistochemistry proved to be extremely helpful for the histological diagnosis.- - - - - - - - - - ranking = 1.2keywords = plexus (Clic here for more details about this article) |
9/115. Three choroid plexus papillomas in a patient with aicardi syndrome. A case report.aicardi syndrome is an X-linked dominant disorder primarily defined by the triad of corpus callosum agenesis, infantile spasms and a pathognomonic lacunar chorioretinopathy. Papillomas of the choroid plexus have been reported in affected patients. We report an aicardi syndrome patient who had three separate choroid plexus papillomas and associated hydrocephalus. A dizygotic twin was unaffected. Staged resection of the tumors was safely accomplished, with improvement in seizure control. Imaging between procedures revealed rapid tumor growth.- - - - - - - - - - ranking = 1.2keywords = plexus (Clic here for more details about this article) |
10/115. Primary choroid plexus carcinoma producing carbohydrate antigen 19-9.An autopsy case of primary choroid plexus adenocarcinoma arising in a 40-year-old female, who was associated with a high serum level of a carbohydrate antigen 19-9 (CA19-9), is herein presented. After a subtotal removal of a tumor in the left lateral ventricle, the serum level of CA19-9 decreased rapidly, and immunohistochemical examinations of tumor tissue specimens obtained at surgery revealed intense reactivity for CA19-9. The present case may be the first example in which a primary choroid plexus carcinoma was shown to produce CA19-9.- - - - - - - - - - ranking = 1.2keywords = plexus (Clic here for more details about this article) |
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