We report a case of livedo reticularis of the lower limbs in a 30-year-old woman scuba diver after a diving session. Consideration of the differential diagnoses, the clinical picture, and the course of the symptoms led to a diagnosis of cutaneous decompression sickness. This accident, which resolved favorably in this scuba diver without any right-to-left shunt, is an alarm signal that calls for her to comply strictly with safety rules before resuming scuba diving, to avoid a more serious accident.
Keywords: cutaneous decompression sickness; cutis marmorata.