The cutaneous mucinoses are a group of connective tissue disorders characterized by the deposition of mucin, either focally or diffusely, in the interstices of the dermis. The diseases may occur as a primary (metabolic) event or as a secondary (catabolic) process in certain dermatoses such as lupus erythematosus and dermatomyositis. Systemic abnormalities are seen with most of these disorders. A brief review and classification of the disorders included in this group is given here.