pilocytic astrocytoma

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pilocytic as·tro·cy·to·ma

a slowly growing astrocytoma composed histologically of elongated astrocytes; often located in the optic chiasm region of the third ventricle, hypothalamus, or cerebellum, predominantly in younger people.
Synonym(s): piloid astrocytoma
Farlex Partner Medical Dictionary © Farlex 2012

pi·lo·cyt·ic as·tro·cy·to·ma

(pī'lō-sit'ik as'trō-sī-tō'mă)
A slowly growing astrocytoma composed histologically of elongated astrocytes; often located in the optic chiasm region of the third ventricle, hypothalamus, or cerebellum, predominantly in younger individuals.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

pilocytic astrocytoma

A low-grade (relatively slow growing) tumor made of supporting cells of the brain. It usually found in the cerebellum of children, in whom it causes symptoms of headache, nausea, vomiting, and difficulty with balance.
See also: astrocytoma
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
The six-year-old, from Ashton-under-Lyne, has a rare form of brain tumour known as pilocytic astrocytoma.
Prior to the investigations in medulloblastoma patients, they sequenced the mitochondrial genomic sequence of tumor tissues from 19 pilocytic astrocytomic patients and matched blood samples and found somatic mutations in 16 (84%) cases (30), too.
In a desperate bid to escape the agony, Craig took himself to A&E where a CT scan found him to have a grade 1 pilocytic astrocytoma, months after going to his GP for help with his headaches.
Rosie also started noticing strange changes in her son's personality that eventually led to him being diagnosed with pilocytic astrocytoma - one of the most common brain tumours diagnosed in the UK.
A case of cerebellar vermis mass in a 4-year-old girl reported as primitive neuroectodermal tumor on radiology proved to be a pilocytic astrocytoma.
Six-year-old Lyla O'Donovan has undergone eight operations in the space of three years after being diagnosed with a pilocytic astrocytoma.
Pilocytic astrocytomas (PAs) are the most common primary gliomas in children and adolescents (0-19 years of age).
Pilocytic astrocytomas showed staining, mostly in the Rosenthal fibres.