[Acquired ichthyosis and livedoid palmoplantar keratoderma: two unusual skin manifestations of systemic lupus erythematosus].

Acquired ichthyosis and livedoid palmoplantar keratoderma have rarely been described in systemic lupus erythematosus (SLE). In the first case, a 51-year-old man presented with generalized acquired ichthyosis associated with renal glomurelosclerosis and neurolupus. rituximab allowed total resolution of the acquired ichthyosis. A livedoid palmoplantar keratoderma was observed in a 45-year-old woman as the initial clinical manifestation of a systemic lupus erythematosus associated with Raynaud's phenomenon, photosensitivity and inflammatory polyarthralgia. Although the pathophysiology is not well-defined, these unusual cutaneous manifestations should be considered by physicians when diagnosis of SLE is suspected.