SNOMED CT

Last uploaded: January 16, 2025
Id http://purl.bioontology.org/ontology/SNOMEDCT/1303909005
http://purl.bioontology.org/ontology/SNOMEDCT/1303909005
Preferred Name

Congenital spinal dermal sinus

Definitions
A rare closed dysraphism with stalk characterized by a dorsal midline dermal sinus tract lined by keratinizing stratified squamous epithelium extending to the intrathecal space. Other components such as hair follicles and shafts, mesenchymal derivatives (blood vessels and fibrous tissue) and occasionally nerve fibers can be observed. Inflamed granulation tissue containing mixed neutrophils, plasma cells, lymphocytes, and histiocytes is consistently found in the tract. It can also be associated with an intradural dermoid cyst. This malformation is at risk to cause intrathecal infections (meningitis, empyema) that justify prophylactic surgery. A rare closed dysraphism with stalk characterised by a dorsal midline dermal sinus tract lined by keratinising stratified squamous epithelium extending to the intrathecal space. Other components such as hair follicles and shafts, mesenchymal derivatives (blood vessels and fibrous tissue) and occasionally nerve fibres can be observed. Inflamed granulation tissue containing mixed neutrophils, plasma cells, lymphocytes, and histiocytes is consistently found in the tract. It can also be associated with an intradural dermoid cyst. This malformation is at risk to cause intrathecal infections (meningitis, empyema) that justify prophylactic surgery.
Synonyms
Dermal sinus tract
Congenital spinal dermal sinus (disorder)
Type http://www.w3.org/2002/07/owl#Class
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