Dysgerminoma of pineal gland
WebAug 10, 2024 · Germinoma is an uncommon pediatric brain tumor that is morphologically identical to its gonadal counterpart: testicular seminoma and ovarian dysgerminoma. It is a malignant germ cell tumor seen at a … WebJun 13, 2024 · Citation, DOI, disclosures and article data. Pineal yolk sac tumors are rare type of extragonadal yolk sac tumors. They make up a small fraction of all intracranial germ cell tumors and an even small fraction of pineal masses overall. CSF biochemistry may demonstrate elevated levels of alpha-fetoprotein (AFP) which is helpful but not diagnostic ...
Dysgerminoma of pineal gland
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WebAbstract. Intracranial germinomas are usually situated in the pineal, but sometimes they arise in the infundibular region of the third ventricle (ectopic pinealoma) and may rarely extend down into the pituitary fossa. Two cases of germinoma arising within the pituitary gland and presenting with hypopituitarism, are described; no report of any ... WebOct 11, 2024 · Microscopic appearance. Pineal germinomas are composed of cells with large nuclei and prominent nucleoli. Lymphocyte infiltration is a common feature, although the degree varies from case to case. …
WebA dysgerminoma is a type of germ cell tumor; [1] it usually is malignant and usually occurs in the ovary . A tumor of the identical histology but not occurring in the ovary may be … WebApproximately 30% to 50% of people who experience a traumatic brain injury (TBI) have issues with at least one endocrine gland in their brain, which includes the pineal gland …
Web1 day ago · The pineal gland is in contact with the pineal recess and dorsal supraspinal recess containing the choroid plexus of the third ventricle. 15 While Vollrath in 1981 describes 6 anatomical variants of ... Zhou Y, Vickers A, Chan N, et al. Atypical presentations of intracranial dysgerminoma mimicking central nervous system … WebAbstract. Our current pineal region tumor series (n = 34) now spans 11 years and currently includes 15 patients with malignant pineal region tumors, only 3 of whom had pure germinomas. Complete gross microsurgical excision of well-encapsulated tumors was possible in 9 of 13 patients (69%) who underwent definitive surgical exploration.
WebExtraneural metastases from primary pineal tumors are extremely rare: only 15 such cases could be found in th literature. Another case is presented of a 10-year-old boy who developed multiple pulmonary and skeletal metastases from a presumed primary pineal germinoma. The incidence and pathogenesis o …
WebThe pineal gland is important in structure, function and in the pathology that can affect it. The significance of the pathology of the gland and its adjacent structures is twofold: anatomical location, and biological behaviour of many of the lesions. ... Germinomas are also known as dysgerminoma, or extra-gonadal seminoma. They account for 3 ... screen on bathroom mirrorWebClinical presection. The classical textbook description of a symptomatic pineal lesion is obstructive hydrocephalus and Parinaud’s syndrome. While this is the more typical presentation for primary pineal tumours, germ cell tumours and meningiomas, it is unusual for pineal cysts and accounts for <4% of cases in highly selected case series.10 Indeed, … screen on boardWebJul 23, 2024 · Pineal dysgerminomas are sporadic pediatric intracranial tumors that usually grow as midline lesions around the third ventricle, most frequently the pineal gland and … screen on both monitorsWebFrom the Archives of the AFIP: Lesions of the Pineal Region: Radiologic ... screen on buildingWebCase Discussion. Germinoma accounts for more than 50% of neoplasms in the pineal region. It is also known as dysgerminoma or extragonadal seminoma, as opposed to non-seminomatous germ cell tumors (NSGCTs). The latter are more resistant to radiation therapy and require higher doses. screen on but no displayGerminomas derive from germ-cells and typically arises in the midline, relating to the third ventricle 11: 1. pineal gland: 80-90%, known as a pineal germinoma in this location 2. suprasellar mass: 15-40%, termed a suprasellar germinoma in this location 3. paraventricular parts of the basal ganglia and thalamus: … See more Germinomas are tumors of young patients with a peak incidence of 10-12 years of age (90% of patients being younger than 20 at the time of diagnosis). They account for 3-5% of pediatric intracranial tumors but only 0.4-1% of … See more Presentation depends on location, with compression of the tectal plate leading to obstructive hydrocephalus and Parinaud syndrome, whereas involvement of the pituitary infundibulum leads to diabetes insipidus (most … See more The mainstay of treatment is with radiotherapy which offers ~85% (range 79-90%) long-term cure rate 10. Leptomeningeal seeding or spillage during surgery are thought … See more Germinomas are soft tissue density, enhancing masses. When present in the pineal region they appear to "engulf" the normal pineal tissue and can have associated central calcification, in contrast to pineocytomas, … See more screen on canalWebThe pineal gland is small and pine cone-shaped, located deep in the brain’s center. We still don’t fully understand the function of the pineal gland, but we know it helps regulate sleep. screen on computer black