<prompt> Abscess related to sternocleidomastoid isBezold abscessCitellis abscessLuc abscessParapharyngeal abscess  <response>: Bezold abscess It can occur following acute coalescent mastoiditis when pus breaks through the thin medial side of the tip of the mastoid and presents as a swelling in the upper pa of neck. The abscess may i lie deep to sternocleidomastoid, pushing the muscle outwards, ii follow the posterior belly of digastric and present as a swelling between the tip of mastoid and angle of jaw, iii be present in upper pa of posterior triangle, iv reach the parapharyngeal space or v track down along the carotid vessels Ref: 