128854008: Pilocytic astrocytoma (morphologic abnormality)

SNOMED CT Concept\Body structure (body structure)\Morphologically altered structure\Morphologically abnormal structure\...

\Growth alteration\Proliferation\Proliferative mass (morphologic abnormality)\Neoplasm and/or hamartoma (morphologic abnormality)\Neoplasm\...

\Nervous system tumour morphology\Central nervous system tumour morphology\Glioma\Low grade glioma (morphologic abnormality)\Glioma of uncertain behaviour\Pilocytic astrocytoma

\Neoplasm of uncertain behaviour\Glioma of uncertain behaviour\Pilocytic astrocytoma

\Lesion (morphologic abnormality)\Mass\Proliferative mass (morphologic abnormality)\Neoplasm and/or hamartoma (morphologic abnormality)\Neoplasm\...

\Nervous system tumour morphology\Central nervous system tumour morphology\Glioma\Low grade glioma (morphologic abnormality)\Glioma of uncertain behaviour\Pilocytic astrocytoma

\Neoplasm of uncertain behaviour\Glioma of uncertain behaviour\Pilocytic astrocytoma

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

207482017 Piloid astrocytoma en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

207483010 Juvenile astrocytoma en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

207484016 Pilocytic astrocytoma en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

732903018 Pilocytic astrocytoma (morphologic abnormality) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core

1220831012 Spongioblastoma en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Pilocytic astrocytoma	Is a	Neoplasm of uncertain behaviour	false	Inferred relationship	Some
Pilocytic astrocytoma	Is a	Glioma	false	Inferred relationship	Some
Pilocytic astrocytoma	Is a	astrocytome	false	Inferred relationship	Some
Pilocytic astrocytoma	Is a	Glioma	false	Inferred relationship	Some
Pilocytic astrocytoma	Is a	Glioma of uncertain behaviour	true	Inferred relationship	Some

Inbound Relationships	Type	Active	Source	Characteristic	Refinability	Group
[M]Spongioblastoma NOS	Is a	False	Pilocytic astrocytoma	Inferred relationship	Some
Pilocytic astrocytoma of cerebellum	Associated morphology	False	Pilocytic astrocytoma	Inferred relationship	Some	1
Juvenile astrocytoma	Is a	False	Pilocytic astrocytoma	Inferred relationship	Some
Pilocytic astrocytoma of cerebellum	Associated morphology	True	Pilocytic astrocytoma	Inferred relationship	Some	1
Pilocytic astrocytoma is a rare subtype of low-grade glioma of the central nervous system characterized by a well circumscribed, often cystic, brain tumor with a discrete mural nodule and long, hair-like projections that extend from the neoplastic astrocytes. Depending on the primary localization and the size of the tumor, patients can present with signs of raised intracranial pressure (headache, vomiting, papilledema), blurred vision, decreased visual acuity, ataxia and/or nystagmus, among others. It is most commonly located in the cerebellum, but occurrence in the hypothalamus, brain stem, optic chiasma, and hemispheres has also been reported.	Associated morphology	True	Pilocytic astrocytoma	Inferred relationship	Some	1

This concept is not in any reference sets