1/108. Recurrent short rib-polydactyly syndrome with unusual associations.short rib-polydactyly syndrome (SRPS) is manifested by short-limb dwarfism, short ribs with thoracic hypoplasia, and polydactyly. This inheritable syndrome has distinct imaging findings on prenatal sonography, and ancillary findings on both pre- and postnatal assessments may enable individual cases to be classified into 1 of 4 subtypes. In this report, we present a recurrent case of SRPS that was associated with a cystic hygroma and choroid plexus cysts. Although cystic hygromas are not uncommonly seen in skeletal dysplasias, the presence of concomitant cystic hygroma and choroid plexus cysts suggests a chromosomal abnormality such as trisomy 18.- - - - - - - - - - ranking = 1keywords = choroid plexus, choroid, plexus (Clic here for more details about this article) |
2/108. 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 = 0.5keywords = choroid plexus, choroid, plexus (Clic here for more details about this article) |
3/108. The Chiari II malformation: lesions discovered within the fourth ventricle.Structural lesions associated with the Chiari II malformation have been identified within the fourth ventricle in 8 patients. During the 42-month period encompassing the operations of the 7 patients treated surgically, only 9 other patients were explored without the discovery of some associated structural lesion. The patients ranged in age from 2 to 26 years. The following lesions were identified: glial or arachnoidal cysts (3 patients), glial or choroidal nodules (3 patients) and subependymoma (2 patients). These lesions were all situated in the roof of the fourth ventricle adjacent to or interspersed with the choroid plexus. Only the cystic lesions were identified by preoperative imaging. In only 1 case did the associated lesion, a 2-cm cyst, seem to contribute to the patient's clinical presentation. Structural lesions of the fourth ventricle associated with the Chiari II malformation are common in patients who are submitted to decompression. These lesions may be dysplasias of developmental origin, or they may be reactive lesions related to chronic compression and ischemia. They do not necessarily required biopsy or excision.- - - - - - - - - - ranking = 0.53724058921404keywords = choroid plexus, choroid, plexus (Clic here for more details about this article) |
4/108. acquired immunodeficiency syndrome-related intraocular B-cell lymphoma.OBJECTIVES: To present the full clinical spectrum of the acquired immunodeficiency syndrome-related intraocular lymphoma as manifested in the eye, specifically retinal lymphoma associated with primary central nervous system lymphoma, isolated ocular lymphoma, and choroidal lymphoma associated with systemic lymphoma. methods: Three patients with acquired immunodeficiency syndrome were noted to have atypical retinal lesions. Diagnostic retinal biopsy in 2 patients and postmortem examination of the eyes in the third case were performed. RESULTS: Diagnostic retinal biopsy in the first 2 patients revealed retinal B-cell lymphoma. Initial systemic evaluation showed the eyes to be the sole site of disease. Later, in 1 of these patients, the lymphoma spread to the brain. The third patient developed an acute abdomen 4 months after the development of his ocular findings. The histological evaluation of the resected bowel revealed high-grade B-cell lymphoma. The patient died 1 week later and postmortem analysis of the eyes disclosed the presence of lymphoma in the choroid of both eyes. CONCLUSIONS: This is the most complete series of patients with acquired immunodeficiency syndrome-related intraocular B-cell lymphoma and, to our knowledge, provides the first 2 cases diagnosed by retinal biopsy. These 3 cases present the full clinical spectrum of the disease as manifested in the eye.- - - - - - - - - - ranking = 0.074481178428084keywords = choroid (Clic here for more details about this article) |
5/108. Fatal pulmonary embolism in a child undergoing extra-ventricular drainage surgery--a case report.thromboembolism is rather common in neurological patients and patients with brain tumor, who are bed-ridden or with partial immobile limb. In serious instances morbidity and mortality are inevitable. We present a case report on a fatal pulmonary embolism in a 2-year-old girl who underwent extra-ventricular drainage procedure under general anesthesia for occipital subdural effusion, a sequela of the former surgery undertaken to remove the choroid plexus papilloma 13 days ago. Sudden cardiac arrest occurred during induction of anesthesia and she finally succumbed in spite of vigorous cardiopulmonary resuscitation. Transthoracic and transesophageal echocardiography performed in the course of resuscitation disclosed thrombi of various sizes scattering in right atrium, the right ventricle, main pulmonary trunk, and the left pulmonary artery. The cause of death was thought to be severe obstruction of right ventricular outflow tract by large thrombi. The etiological factors which possibly led to the thrombosis were discussed, and the methods of diagnosis and treatment were also explored.- - - - - - - - - - ranking = 1.139408308084keywords = choroid plexus, choroid plexus papilloma, plexus papilloma, choroid, papilloma, plexus (Clic here for more details about this article) |
6/108. Isolated brain metastasis of malignant choroidal melanoma 27 years after enucleation.Choroidal melanoma primarily metastasizes to the liver. Isolated extrahepatic metastases have rarely been reported and they generally resulted in death within 6 months. We describe a patient who developed an isolated brain metastasis 27 years after his left eye was enucleated for choroidal melanoma. The metastasis was successfully treated with surgery and radiotherapy. The patient is alive and disease free 3 years after treatment of the metastasis. Posterior location and other clinical and morphologic characteristics of primary choroidal melanoma could explain the unusually long latency of this solitary extrahepatic metastatic disease. Lifelong surveillance to detect early signs of metastasis is mandatory for any patient treated for choroidal melanoma.- - - - - - - - - - ranking = 0.26068412449829keywords = choroid (Clic here for more details about this article) |
7/108. Midline developmental anomalies with lipomas in the corpus callosum region.Three children with complete or partial callosal aplasia and intracranial lipoma in the corpus callosum region were investigated. Two lipomas were tubulonodular; one replaced the entire corpus callosum structure. Accompanying anomalies affected the cingulate gyrus, septum pellucidum, and choroid plexus. In one case, diagnosis was made in utero in the 25th gestational week by ultrasonography; in the second case it was made on the first day of life, also by screening ultrasonography. Two children had mild spastic distal diparesis; one complained of chronic headache. electroencephalography showed no abnormalities; epilepsy anamnesis was negative. Somatosensory and visual evoked potentials showed prolonged conduction in two cases. Surgery was not indicated. Because of the risk of developing epileptic seizures, regular electroencephalographic follow-up investigations are essential.- - - - - - - - - - ranking = 0.5keywords = choroid plexus, choroid, plexus (Clic here for more details about this article) |
8/108. Primary choroid plexus papilloma of the cerebellopontine angle presenting as brain stem tumor in child.A case of a primary choroid plexus papilloma of the cerebellopontine angle in an 8-year-old female is presented. The clinical features of progressive cranial nerve palsies and cerebellar signs in the absence of intracranial hypertension initially suggested an intrinsic brain stem lesion. Whereas a radionuclide brain scan demonstrated abnormal uptake in the region of the pons, vertebral angiography and pneumoencephalography were diagnostic of an angle mass. At surgery, the tumor proved to be a choroid plexus papilloma that was totally confined to the cerebellopontine angle. This patient represents the thirteenth reported case of a primary cerebellopontine angle papilloma and the first such case occurring in a child.- - - - - - - - - - ranking = 6.8493272025323keywords = choroid plexus, choroid plexus papilloma, plexus papilloma, choroid, papilloma, plexus (Clic here for more details about this article) |
9/108. Macerated fetus in utero relating to intracranial angioma: report of 2 cases.Two macerated fetuses in utero are presented. The mothers experienced no abnormalities during pregnancy. Both fetuses were found postmortem to have intracranial angiomas. In case 1, the angioma in the choroid plexus of the right lateral ventricle was associated with intraventricular and subarchnoid hemorrhages. There was additional angiomatosis in the leptomeninges and substance of the brain. In case 2, there was leptomeningeal angiomatosis with diffuse subarchnoid hemorrhage. It is suggested that spontaneous rupture of the angioma of the choroid plexus in case 1 and of the leptomeninges in case 2 resulted in immediate death of the fetuses with subsequent maceration in utero. Asymptomatic angioma of the fourth ventricular choroid plexus is also described in case 2 because of its extreme rarity.- - - - - - - - - - ranking = 1.5keywords = choroid plexus, choroid, plexus (Clic here for more details about this article) |
10/108. Undefined complications of parathyroid adenoma, parathyroid hyperplasia (primary hyperparathyroidism), thyroid follicular adenoma, thyroid papillary carcinoma, temporal astrocytoma, cerebellar meningioma, and hemangioma of external auditory meatus and oral papilloma.A 59-year-old woman who had parathyroid adenoma, parathyroid hyperplasia, thyroid follicular adenoma, thyroid papillary carcinoma, astrocytoma of the right temporal lobe, cerebellar meningioma, capillary hemangioma of the left external auditory meatus and papilloma of the left upper gingiva is reported. Dynamic magnetic resonance imaging, computed tomography with contrast-enhancement and gastrofiberscopy revealed no remarkable findings in the pituitary, pancreas, adrenals, stomach or duodenum. Similar lesions were not found in any family members. Defect of the causative genes of multiple endocrine neoplasia types I and IIa, MENIN and RET was not detected. Further follow-up of this patient and family members is needed.- - - - - - - - - - ranking = 0.064386770141868keywords = papilloma (Clic here for more details about this article) |
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