Abstract
Spinal teratomas are heterogeneous neoplasms and are extremely rare in the upper thoracic spine. They are sub-classified as mature, immature, or malignant. They may be calcified or rarely ossified; the latter posing a major surgical challenge due to surgical difficulties in safe removal. Clinicoradiologico-pathological and operative experience of ossified spinal intradural mature teratomas is extremely rare. We present a case of ossified upper thoracic intradural mature teratoma managed by microsurgical drilling and resection under neuromonitoring.