LICHENOID DRUG ERUPTION FOLLOWING THE BLASCHKO LINES

Eruptions similar to those of lichen planus (LP) are associated with s ystemic diseases or have been induced by many drugs. Linear lesions as a Koebner effect are frequently found in LP but isolated long, narrow , linear lesions, which may extend the whole length of the limb, are r are though rather more common in childhood. Some cases of zonal or zos teriform LP have been described in the literature. We describe a case of LP with a linear distribution following the Blaschko embryologic li nes induced by nicergoline in a 65-year-old woman with a 6-month histo ry of a pruritic eruption of erythematoviolaceous papules on the left breast, trunk and upper limb, with histological features of LP. It wou ld be the first case of linear LP associated with drugs.