Nineteen patients underwent direct surgical approach. Glandula pineal ou epifise funcao e anomalias anatomia. Thus, histologic verification is necessary for most pineal region masses that appear to be neoplastic. Pineal tumors arise in the region of the pineal gland. Although the correct histologic diagnosis may be suggested with a careful evaluation of the morphologic features, attenuation, and signal intensity characteristics, very few of these tumors have a truly pathognomonic imaging pattern. Gliomas on the pineal region are uncommon, representing 0. Teratomas are multilocular heterogeneous masses containing lipid areas. Pineal tumors can happen at any age, but they tend to happen in children and young adults. The pineal gland makes melatonin, a substance that regulates your sleepwake cycle. Papillary tumor of the pineal region is a rare neuroepithelial tumor characterized by papillary architecture and epithelial cytology, immunopositivity for cytokeratin and ependymal differentiation. Grade ii or iii pineal parenchymal or papillary tumors of the pineal region are both midgrade tumors. At least 17 different types of tumors may occur in this region, and many are benign.
O tumor da glandula pineal causas, sintomas, diagnostico e. Most pineal region masses are malignant germ cell neoplasms that occur in young male patients. This gland is a small structure deep within the brain. The shape of the gland resembles a pine cone from which it derived its name. At least 17 different types of tumors may occur in this region.
Pineal parenchymal tumors comprise a group of related tumors ranging from the relatively benign to the highly malignant. These tumors represent about 1% of all brain tumors but account for 3% to 8% of the intracranial tumors that occur in children. O tumor da glandula pineal tumores do sistema nervoso central nos adultos. Pineal region tumors are reported with an annual incidence from 0. The pineal gland produces melatonin, a serotoninderived hormone which modulates sleep patterns in both circadian and seasonal cycles. A glandula pineal tambem conhecida por epifise tem associada uma. The pineal gland, conarium, or epiphysis cerebri, is a small endocrine gland in the brain of most vertebrates. Pineal region tumors are grouped in four grades and subtypes based on their characteristics. Pineal parenchymal tumors radiology reference article. Among these tumors, pinealoblastoma is a type of malignancy that appears in. The purpose of this paper is to report a rare case of a pediatric pineal gliosarcoma. Article pdf available january 2014 with 9,635 reads how we measure reads. The most common is a germinoma, which is a homogeneous mass with signal intensity and attenuation similar to those of gray matter. A glandula pineal ou epifise e um ponto importante da anatomia humana.
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