Summary of Background Data. Case studies documenting the incidence of
thoracic intraspinal, extradural synovial cysts are limited. The occur
rence of synovial cysts is associated with varied symptoms that differ
among cervical, thoracic, and lumbar regions. The clinical appearance
may be similar to other spinal diseases. Methods. This report describ
es symptoms exhibited by and care provided for a patient with extradur
al synovial thoracic cyst.