[Hypertrophic pulmonary osteoarthropathy. A paraneoplastic syndrome associated with lung cancer].

The case report presents a 52-year-old woman. The patient was a smoker, but did not have any pulmonary symptoms. Four months before admission she developed pains in her knee, ankle, elbow and finger joints. Bone scintigraphy showed periosteal new bone formation along the femur and tibia and increased tracer uptake in the hands. These findings were diagnosed as HPOA. Chest X-ray revealed a lung tumour.