Systemic sclerosis-associated compressive cervical calcinosis: intersection of degenerative spine instability, lesional spinal cord compression, and traumatic spinal cord injury. Illustrative case.

Background: Tumoral calcinosis, mass-like calcium deposition into the soft tissues, is an uncommon manifestation of the systemic sclerosis subtype of scleroderma. When this process affects the spinal epidural space, it can cause canal narrowing and place the spinal cord at significant risk of injury.

Observations: Here a 62-year-old female with systemic sclerosis and no previous evidence of spinal cord compromise who developed acute spinal cord injury and quadriparesis after a mechanical fall is described. She was found to have a large dorsal epidural calcified mass compressing her cervical spinal cord. She underwent medical management for acute spinal cord compression as well as surgical management for acute spinal cord injury and degenerative spine disease. Her case illustrates a rare etiology of simultaneous degenerative spine instability and lesional spinal cord compression with acute spinal cord injury.

Lessons: Tumor calcinosis leading to acute spinal cord injury in the setting of systemic sclerosis is an uncommon but critical entity to recognize in patients with scleroderma and may require the physician to use a combination of medical and surgical management strategies from each of these categories of spine pathology.