Malignancy Free

**McCormick Classification**
Functional classification for intramedullary spinal cord tumors
Grade I	Neurologically, mild focal deficits, normal gait
Grade II	Sensorimotor deficits affecting function, severe pain, gait difficulties, can still walk
Grade III	Moderate neurological deficit, requires cane for ambulation. Arm involvement possible. Partially independent.
Grade IV	As in grade III with arms affected, usually not independent

**Simpson Grade**
Classification for surgical resection of meningiomas
Grade I	Macroscopically complete removal, excision includes dural attachment, abnormal bone, and venous sinus (if involved)
Grade II	Macroscopically complete removal, with coagulation of dural attachment
Grade III	Macroscopically complete removal, without coagulation of dural attachment or extradural extensions
Grade IV	Partial removal
Grade V	Biopsy or simple decompression