Introduction: Hirayama disease is a form of cervical myelopathy common in male adolescents that affects distal upper extremities & anterior horn cells of spinal cord. It is a symmetrical lower motor weakness that is self-contained in hands & forearms.
Materials and Methods: Observational type of case study using MRI. 16 years male presented with inability to move his right index finger & decreased sensations for 3 months
Results: T2 sagittal images showed mild atrophy with flattening of cervical cord & displacement of posterior dura with compression on cord on dynamic flexion. Cord diameter was reduced suggestive of compression.
Conclusion: Based on the patient's clinical, electrophysiological, & radiological characteristics, "Hirayama disease" was diagnosed. In addition to physiotherapy, a cervical collar was used to treat him in order to avoid neck flexion & thus surgery was avoided.