Primary oxalosis--an unusual cause of livedo reticularis

A young woman presented with renal failure and skin lesions of livedo reticularis (LR) due to primary oxalosis. Primary oxalosis is a rare autosomal-recessive error of metabolism characterized by accumulation of calcium-oxalate crystals in the kidneys, eyes, heart and skin. This unusual cause of intravascular obstruction resulting in livedo reticularis should be considered in patients with renal impairment. An approach to the diagnosis of LR is presented.