Immobilization of the cervical spine with a plaster jacket is known as

Cold abscess • It is an abscess that arises from tuberculous origin. • Causes of cold abscess other than tuberculosis include Actinomycosis, Gumma degeneration and Leprosy. • It is called 'cold' as it is not as hot and red as pyogenic abscess. • When the cold abscess is secondary to caries spine of the cervical region, immobilization of the cervical spine is required with a plaster jacket known as 'Minerva jacket'.