Postepidural Spinal Intradural Arachnoid Cyst: A Rare Case Report.

Compression of the neural structures in spine by an intradural arachnoid cyst is a rare entity. At times such a cyst is an incidental finding. Spinal epidural injection is one of the few rare etiological factors for its development. Symptomatic cysts can present with variable neurological manifestations depending on the spinal level involved. This includes back pain, lower limb weakness, and sphincteric dysfunction. If asymptomatic, they can be followed radiologically. Surgical decompression along with a histological diagnosis is reserved for cysts that are enlarging, symptomatic or the ones for whom the diagnosis is uncertain. Incomplete excision of cyst wall or simple fenestration and decompression mandates close follow-up, clinically and radiologically for further recurrences.

Hereditary angioedema: A rare presentation after anterior cervical discectomy and fusion.

Hereditary angioedema is an autosomal dominant disorder following a genetic defect of C1 inhibitor gene on chromosome 11. This rare condition presents itself as a recurrent attack of submucosal swelling mostly involving skin, gastrointestinal tract and upper respiratory airway and exacerbates with any physical and emotional stress. Prompt diagnosis and prevention of an acute attack with early recognition and effective treatment can protect the patient from potential laryngeal edema and fatality.