Linear morphea distributed along radial nerve with high incidence of neuromusculoskeletal disorders: A single-center case series.

Linear morphea is the most disabling subtype of morphea, which may cause a series of excutaneous manifestations and sequelae. To futher explore the clinical characteristics of linear morphea, we conducted a retrospective study of 22 patients diagnosed with linear morphea in our department during the past 2 years. Their baseline clinical information, skin manifestations, complications and therapeutic effect were analyzed. Here, we report six cases of a special linear morphea, usually occurring on the unilateral upper limbs of young women, spreading along the distribution of the radial nerve and frequently progressing across the joint, which increases the incidence of neuromusculoskeletal disorders. Instead of traditional topical drugs, a combination of systemic prednisone and methotrexate improved their skin lesions and complications. Recognition of this special type of linear morphea enables earlier diagnosis and active treatment plan, which contributes to ameliorate the symptoms and avoid functional sequelae.