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- Title
Pontine Tegmental Cap Dysplasia- the Role of MRI and DTI in Diagnosis.
- Authors
Gandhi, Jenny; Sankhe, Shilpa; Udmale, Prasad; Gandhi, Jenny Mukeshchandra
- Abstract
Sir, Pontine tegmental cap dysplasia is a rare disorder of the brainstem with reduced number of axons, impaired axonal navigation, and abnormal course with ectopic track in dorsal pons ectopic track in dorsal pons.[[1]] The underlying cause is genetic mutation.[[1]] The patient presents with difficulty swallowing difficulty and cranial nerve palsies.[[2]] It is a radiological diagnosis and identification and classification in correct subgroup on MRI is essential.[[1]] Magnetic Resonance Imaging [MRI] with Diffusion Tensor Imaging [DTI] is the investigation of choice. On T2w sagittal image, the pons was small with flattened ventral pons and band-kike structures in the dorso-superior aspect of the pons giving cap-like appearance [Figure 1]a. Dorsal band was projecting into the fourth ventricle [Figure 1]a.{Figure 1} On T2w axial images, the dorsal pons was round in shape.
- Subjects
OPTIC disc; ETIOLOGY of diseases; NERVOUS system; DIFFUSION tensor imaging; HEARING disorders; OPTIC nerve injuries; FAILURE to thrive syndrome
- Publication
Neurology India, 2020, Vol 68, Issue 3, p691
- ISSN
0028-3886
- Publication type
letter
- DOI
10.4103/0028-3886.289019