[Ulcero-mutilating acro-osteopathy in hereditary neuropathies. Differential diagnosis and pathogenesis].

Two patients, aged 51 and 70 years, had indolent ulcerations at the sole of the foot with destructive osteolysis in the bones of the feet, lesions characteristic of mutilating ulcerative acro-osteopathy. Patient 1, who had pes cavus, developed ulcerations on the balls of the feet along the second metatarsal bones, and patient 2 with pes equinovarus developed ulcers in the area of the calcaneus. Sock-like hypesthesia/hypalgesia from the toes to the ankles was present in both patients, and electrophysiological tests confirmed the presence of axonal sensory-motor neuropathy. Diabetes mellitus and alcohol abuse was excluded in both patient. Clinical findings, history and neurological disturbances in both patients identified the disease as hereditary sensory neuropathy (type I).