Idiopathic hypertrophic pachymeningitis (IHP) can resemble other disorders associated with spinal compression. It is a rare inflammatory fibrosing disease of the dura of unidentified etiology and is considered a diagnosis of exclusion. We present a case of idiopathic hypertrophic spinal pachymeningitis occupying a long segment of cervical dura. This is a case of 38-year-old female patient, who suffered progressive neck pain for 2-year duration. Examination revealed spasticity in all four limbs, plus three symmetric reflexes all over, and the sensory level at T4. Magnetic resonance imaging showed spinal cord compression by a thickened anterior and posterior dura adjacent to the cord from C2 to C7. The diagnosis of spinal IHP was confirmed through biopsy. The patient improved after treatment with corticosteroids. Early surgical intervention with postoperative corticosteroid therapy is a known treatment for this disease, as a way to prevent irreversible neurological damage.