Systemic connective tissue disease
Essential vasomotor disturbances; fibrosis; subsequent atrophy of the skin, subcutaneous tissue, muscles, and internal organs
Major features include centrally located skin sclerosis that affects the arms, face, and/or neck.
Minor features include sclerodactyly, erosions, atrophia of the fingertips, and bilateral lung fibrosis.
SSc is diagnosed when a patient has 1 major and 2 minor criteria.