Tumors of strobiloid gland

Description:

Tumors of strobiloid gland are new growths of an epiphysis of various degree of a zlokachestvennost which develop from the cells preceding pinealotsita. The place of localization of primary tumor are back departments of the third ventricle of a brain (pineal area). According to statistical data prevalence of the diagnosis makes 1-1,5% among all intracranial volume educations, but is most often shown at teenage age (10-18 years).
Classification of tumors of a pinus:
Pimealoma (WHO-2) - slowly growing tumor consisting of mature pinealotsit. Makes about 45% of all tumors of a pinus. Equally often reveal at men and women, the peak of incidence to fall on age of 25-30 years
Pinealoma (WHO-4) - the high-malignant tumor consisting of the low-differentiated cells of a pineotsitarny row. Makes about 45% of all tumors of a pinus. In the biological properties and aggression it is very similar to a supratentorial primitive neeyroektodermalny tumor, in particular, possesses a tendency to innidiation on subarachnoid spaces. The tumor is revealed preferential in children though emergence cases practically at any age are described. Develops at males slightly more often
The tumor of a parenchyma of strobiloid gland of an intermediate differentiation (WHO-3) is characterized by the least predictable current. Makes about 10% of all tumors of a pinus. Develops at adults more often.

Symptoms of tumors of strobiloid gland:

Gipertenzionno-gidrotsefalny signs are caused by a prelum a tumor of a water supply system of a brain and back departments of the third ventricle. From local symptoms most often there are various visual and oculomotor frustration - weakening of reaction of pupils to light, look paresis in the vertical direction, convergence disturbance, an ophthalmoplegia, a hearing disorder. These manifestations are generally connected with defeat by a mesencephalon roof plate tumor. Approximately at a half of patients cerebellar frustration in the form of disturbances of a statics and gait come to light. If the malignant tumor burgeons in basal kernels, then extrapyramidal symptoms come to light.

Diagnosis:

MRT with contrast strengthening - a standard research at tumors of this localization. At a pimealoma find the small sizes roundish education in pineal area, with a clear boundary, actively and gomogenno accumulating contrast and causing a plate compression a chetverokholmiya. All symptoms of the malignant quickly progressing tumor are characteristic of a pinealoma (the infiltrative nature of growth, a heterogeneous signal with signs of a necrosis and hemorrhages, the big sizes, subarachnoidal metastasises).

Treatment of tumors of strobiloid gland:

Treatment of tumors of a pinus operational, in certain cases - combined. The choice of a method of treatment (radiation therapy, a symptomatic treatment, operation or their combination) is a complex challenge that is caused by a histologic variety of tumors of a pinus, their interrelation with a brain trunk and an arrangement in close proximity to large blood vessels, and also various radio sensitivity of tumors.

In the presence of gipertenzionno-gidrotsefalny symptoms make the palliative operations directed to elimination of occlusal hydrocephaly.

At nonresectable tumors forecast adverse. During removal of the tumors of a pinus, small by the size, which are not burgeoning in a brain trunk it is possible to receive satisfactory result.