BACKGROUND Uveal melanomas can develop in the choroid, ciliary body and iris. In choroidal and ciliary body melanomas, specific chromosomal changes correlate with metastatic disease. Iris melanomas have a better prognosis than choroidal melanomas, and it would be interesting to know if they share chromosomal changes. In addition, iris melanomas might harbour UV-induced mutations of tumour suppr...

The neurocutaneous melanosis (NCM) is a rare, neuroectodermal dysplasia defined by the association of giant or multiple, nonmalignant pigmented cutaneous nevi with leptomeningeal melanosis or melanoma. As a rule, the cerebral pathological substratum is characterized by a melanocytic infiltration of the leptomeninges, often leading to hydrocephalus. The most frequent clinical symptomatology star...

The tentorial arteries arise from three main sources [1]. The first is the cavernous segment of the carotid artery. The meningohypophyseal trunk gives rise to the basal tentorial artery (artery of Bermasconi-Cassanari) , and the inferior cavernous sinus artery gives rise to the marginal tentorial artery. The second source is the meningeal branch of the superior cerebellar artery. The third is t...

The middle meningeal artery of the dog usually diverges from the maxillary artery before it enters into the alar canal. This vessel shows an extremely complicated relationship between the passage into the cranial cavity and the r. anastomoticus as well as the anastomotic artery. In some carnivora, branches of the maxillary artery in this region communicate with the internal carotid artery. Espe...

Thirty-seven patients with retinoblastoma were evaluated prospectively by clinical examination, lumbar puncture, and CT. Eight (22%) of the 37 were found to have meningeal dissemination. The tumor was bilateral in three patients. Two cases showed no CT signs of local recurrence. Headache, nauseajvomiting, and restlessness were the most common symptoms. CT scans in these patients showed diffuse ...

A case of malignant neoplasm is described in which the initial manifestations were mental dysfunction and meningeal irritation, mimicking chronic or subacute meningitis. Physical examination showed cranial nerve involvement and a pelvic tumor. There was progressive deterioration, and death occurred in 2 weeks. The autopsy revealed a gallbladder adenocarcinoma, meningeal carcinomatosis, and ovar...

OBJECTIVE To identify serotypes and susceptibility of S. pneumoniae strains from 48 children with invasive infections and 50 carriers. MATERIAL AND METHODS Typing was performed by the Quellung reaction and susceptibility by Kirby-Bauer and Etest according to CLSI standards. RESULTS Of 31 meningeal strains, serotypes 19F, 3, 6B, 14 and 23F were predominant. Resistance to penicillin and STX w...

Traumatic pseudoaneurysm of the middle meningeal artery is rare and is associated with high mortality. Skull fracture is usually an associated feature of this entity. An elderly male was brought to our hospital in a stage of coma. The details of ictus were not known. The Glasgow coma scale score was 9/15. Examination revealed a pseudo-aneurysm arising from the posterior branch o...