Severe Esophageal Lichen Planus Treated With Tofacitinib.

Lichen planus is a chronic inflammatory immune disorder that most commonly affects the skin and mucous membranes. Esophageal lichen planus (ELP) is a frequently misdiagnosed and poorly understood form of lichen planus that can be asymptomatic or present with dysphagia and odynophagia caused by the formation of erosions and strictures in the esophagus. These strictures often reduce a patient's quality of life and may lead to emaciation in more severe cases.

Linear porokeratosis with underlying bony abnormalities.

A 58-year-old woman with linear porokeratosis involving the right hand and arm had distal digital narrowing and nail dystrophy with radiographic changes. Whereas isolated cases of bone resorption and flexion deformities with porokeratosis of Mibelli are known to occur, to our knowledge, bony abnormalities in association with linear porokeratosis have not been reported.