No Abstract Available.
Melatonin* ; Pineal Gland*

No abstract available.
Astrocytoma* ; Paralysis* ; Pineal Gland*

No abstract available.
Animals ; Brain* ; Pineal Gland* ; Rats*

Pineal gland is structured by special morphology of neural cells. The tumor originates from the gland or its surrounding tissnes therefore these tumors have histologically different origins. They are in deep location with narrow path inward. Pineal tumor has not specific symptoms and usually diagnosed lately. The removal surgery comfuses of 2 stages - first: brain ventricular-abdomen drainage, second: tumor removal within 2-3 weeks after the first stage. There are 5 methods to approach the tumor, with own advantages and short comings
Pineal Gland ; Neoplasms ; Casts, Surgical ; surgery ; Therapeutics ;

We reviewed 13 patients treated in the Department of Neurosurgery of the Presbyterian Medical Center from 1979 to 1982 who had tumors in the region of the pineal body. The treatment of such tumors has been in a state of flux between conservative therapy(cerebro-spinal fluid shunting and radiotherapy) and direct surgical removal. We compared both modes of treatment and analysed the patients in terms of clinical, pathological and radiological points of view. Good results were obtained by supracerebellar and infratentorial surgical approach.
Humans ; Neurosurgery ; Pineal Gland ; Protestantism ; Radiotherapy

A teratoma is a true tumor or neoplasm composed of multiple tissue of kinds foreign to the part in which it arises. Predilection site of intracranial teratoma are the pineal body, the pituitary region and the posterior fossa in order of frequency. We have reported a case of teratoma experienced in a boy aged 12 who disclosed various clinical manifestations of right frontal lobe tumor. The teratoma was malignant histologically and located deeply in the white matter of the right posterior frontal lobe.
Frontal Lobe ; Humans ; Male ; Pineal Gland ; Teratoma*

Brain Neoplasms ; Germinoma ; Humans ; Pineal Gland

OBJECTIVE: This study is aimed to see ultrastructural changes of pineal gland in rats exposed to microwaves. METHODS: We conducted an experiment by exposing rats at the electromagnetic wave frequency of 2.45GHz, using with an EMR(electromagnetic radiation) emitting apparatus to study the effect of electromagnetic wave on the pineal gland. Paying especial attention to measure damages to pineal gland cells in the brain, we set the levels of EMR according to the duration of electromagnetic wave exposure at 1.2 joules(20min exposure), 2.4 joules(40min exposure), 3.6 joules(60 min exposure), and 4.8 joules(80min exposure) per 1cm2. RESULTS: Compared with normal cells, main histologic changes were observed with an electron microscope included swelling of the pineal gland cells, a decrease in the electron density of interstitial tissue, an increase in the distances between pineal gland cells, an increase in number of lipid-droplets, and swelling of mitochondria. Especially in those pineal cells exposed to EMR for 80 min, severe swelling of mitochondria and a slight increase in lysosome were observed. CONCLUSION: The authors could identify the harmful effect of microwave by observing abnormal ultrastructural changes of pineal cell in rat according to the increasement of electromagnetic radiation.
Animals ; Brain ; Electromagnetic Radiation ; Lysosomes ; Microwaves* ; Mitochondria ; Pineal Gland* ; Rats*

We herein present a rare case of pineocytoma in a 23-year-old female exhibiting distinct histomorphological features. The tumor contained highly pleomorphic, often multinucleated giant cells in the background of otherwise benign pineocytomatous architecture, which at first led to an erroneous diagnosis of a high grade malignancy. However, the worrisome histological findings turned out to be constituents of a distinct subtype of pineocytoma previously described as pleomorphic variant of pineocytoma. Although it is rare, pathologists should be aware of this entity since the tumor takes on a benign clinical course like any other classic pineocytomas.
Diagnosis ; Female ; Giant Cells ; Humans ; Pineal Gland ; Pinealoma* ; Young Adult

The growing teratoma syndrome (GTS) is defined as the development of mature low-grade elements in the absence of a recurrent non-germinomatous germ-cell tumor (NGGCT) after partial response to multimodal treatment. It is uncommon and may occur in intracranial NGGCTs. Here, we report that a 7-year-old boy with intracranial NGGCT presented with precocious puberty and developed growing teratoma syndrome only 2 weeks after the first cycle of chemotherapy.
Child ; Combined Modality Therapy ; Humans ; Pineal Gland ; Puberty, Precocious ; Teratoma