Fetal Pontine Tegmental Cap Dysplasia- A Case Report
C Priyanka1, Rajeswaran Rangasami1, Indrani Suresh2
1Department of Radiology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India.
Neurology India
|September 9, 2022
Summary
Pontine tegmental cap dysplasia (PTCD), a rare hindbrain malformation, can be diagnosed prenatally. Early detection via fetal MRI is crucial for managing this condition with a poor prognosis.
Area of Science:
- Neuroscience
- Developmental Biology
- Medical Imaging
Background:
- Pontine tegmental cap dysplasia (PTCD) is an exceptionally rare hindbrain malformation.
- Children diagnosed with PTCD typically have a poor prognosis.
- Early prenatal diagnosis is critical for managing PTCD.
Observation:
- A 25-year-old female at 22 weeks gestation underwent fetal MRI for suspected cerebellar hypoplasia.
- Prenatal MRI confirmed cerebellar hypoplasia.
- Postnatal MRI revealed characteristic features of PTCD, including pontine abnormalities.
Findings:
- Retrospective analysis of fetal MRI demonstrated features consistent with PTCD.
- This case represents the earliest prenatal diagnosis of PTCD at 22 weeks gestation.
- It is the fifth reported prenatal case of PTCD.
Implications:
- This case underscores the importance of recognizing subtle prenatal MRI findings suggestive of PTCD.
- Increased awareness and early diagnosis can potentially improve management strategies for PTCD.
- Further research into PTCD pathogenesis and treatment is warranted.


