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A pineal gland cyst is a usually benign (non-malignant) cyst in the pineal gland, a small endocrine gland in the brain. Historically, these fluid-filled bodies appeared on 1-4% of magnetic resonance imaging (MRI) brain scans, but were more frequently diagnosed at death, seen in 4-11% of autopsies. [ 1 ]
Pineocytoma, is a rare, benign, slowly growing tumor of the pineal gland. The pineal gland is a small endocrine gland close to the center of the brain that secretes melatonin into the bloodstream. Pineocytomas can cause pressure and fluid build-up in the brain. They are more common in adults.
Many CNS cysts form in the womb during the first few weeks of development as a result of congenital defects. [7] In adults cysts may also form due to a head injury or trauma, resulting in necrotic tissues (dead tissue), and can sometimes be associated with cancerous tumors or infection in the brain. However, the underlying reasons for cyst ...
The cysts and cavities (cystic brain lesions) are more likely to be the result of destructive (encephaloclastic) cause, but can also be from abnormal development (malformative), direct damage, inflammation, or hemorrhage. [5] The cysts and cavities cause a wide range of physiological, physical, and neurological symptoms. [6]
Papillary tumors of pineal region are extremely rare, constituting 0.4-1% of all central nervous system tumors. [3] These tumors most commonly occur in adults with the mean age being 31.5. There have been cases reported for people between the ages 5 to 66 years. There is a slight predominance of females who have these tumors. [13] [9]
I'd like to clarify that a cyst is not a tumor. It is my understanding that a cyst is fluid filled, whereas a tumor is a solid mass. As for the pineal gland cyst, most are asymptomatic - in other words, individuals lead normal lives with none of those symptoms described by in this article. Right now, there are no known causes of pineal gland cysts.
The presence of frontal and temporal subcortical cysts is the main factor when diagnosing a patient with this disease. [11] In the late stages of the disease, patients have been noted to develop impaired coordination, overresponsive reflexes, and even seizures. MRI testing is used to study and diagnose patients with this disease.
CT scan of a 1 cm colloid cyst. A colloid cyst is a non-malignant tumor in the brain. It consists of a gelatinous material contained within a membrane of epithelial tissue. It is almost always found just posterior to the foramen of Monro in the anterior aspect of the third ventricle, originating from the roof of the ventricle.