Pontine tegmental cap dysplasia

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Pontine tegmental cap dysplasia

ORPHA:269229Morphological anomaly

Also called PTCD

What it is

A rare syndrome with a brainstem malformation as a major feature characterized by ventral pontine hypoplasia, dorsal cap projection into the forth ventricle and cranial nerve dysfunction. Clinical manifestations of multiple cranial nerves deficits, pyramidal and cerebellar signs include neonatal hypotonia, ataxia, sensorineural deafness, reduced vision, language and speech disorders, feeding and swallowing difficulties, facial paralysis and intellectual disability. Various cardiac, gastrointestinal, genitourinary and skeletal defects have been sometimes reported.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Infancy, Neonatal
Inheritance
Not applicable
Classified as
Morphological anomaly

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

ICD-10 codes

Q04.8filed under a broader ICD-10 category — shared with 40 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

GARD 10919MONDO 0013858OMIM 614688UMLS C3541340

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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