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  2. Pineoblastoma - Wikipedia

    en.wikipedia.org/wiki/Pineoblastoma

    The pineal gland is a small organ in the center of the brain that is responsible for controlling melatonin secretion. [2] Several tumors can occur in the area of the pineal gland, with the most aggressive being pineoblastoma. Pineoblastomas arise from embryonal cells in the pineal gland and are rapidly growing.

  3. Pineocytoma - Wikipedia

    en.wikipedia.org/wiki/Pineocytoma

    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. Symptoms include vision problems, nausea, vomiting ...

  4. Pinealoma - Wikipedia

    en.wikipedia.org/wiki/Pinealoma

    A pinealoma is a tumor of the pineal gland, a part of the brain that produces melatonin. If a pinealoma destroys the cells of the pineal gland in a child, it can cause precocious puberty . Signs and symptoms

  5. Endocrine disease - Wikipedia

    en.wikipedia.org/wiki/Endocrine_disease

    Tumours (benign or malignant) of endocrine glands Endocrine disorders are often quite complex, involving a mixed picture of hyposecretion and hypersecretion because of the feedback mechanisms involved in the endocrine system.

  6. Papillary tumors of the pineal region - Wikipedia

    en.wikipedia.org/wiki/Papillary_tumors_of_the...

    Papillary Tumors of the Pineal Region are located on the pineal gland which is located in the center of the brain. The pineal gland is located on roof of the diencephalon. It is a cone-shaped structure dorsal to the midbrain tectum. [3] The tumor appears to be derived from the specialized ependymal cells of the subcommissural organ.

  7. Pineal gland - Wikipedia

    en.wikipedia.org/wiki/Pineal_gland

    The pineal gland (also known as the pineal body [1] or epiphysis cerebri) is a small endocrine gland in the brain of most vertebrates. It produces melatonin, a serotonin-derived hormone, which modulates sleep patterns following the diurnal cycles. [2] The shape of the gland resembles a pine cone, which gives it its name. [3]

  8. Pineal gland cyst - Wikipedia

    en.wikipedia.org/wiki/Pineal_gland_cyst

    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 ]

  9. Human vestigiality - Wikipedia

    en.wikipedia.org/wiki/Human_vestigiality

    Ileum, caecum and colon of rabbit, showing Appendix vermiformis on fully functional caecum The human vermiform appendix on the vestigial caecum. The appendix was once believed to be a vestige of a redundant organ that in ancestral species had digestive functions, much as it still does in extant species in which intestinal flora hydrolyze cellulose and similar indigestible plant materials. [10]