[Scintigraphy in the early diagnosis of the secondary hypertrophic osteoarthropathy syndrome].

We treated twenty-three patients with secondary hypertrophic osteoarthropathy (SHO). Lung cancer was associated with SHO in 21 cases. The underlying conditions for the rest of the patients were pulmonary fibrosis, bronchiastasic, pneumonia and mediastinal cancer. The history, physical examination, radiography and bone-scan were performed. For bone-scan it was used intravenously instilled disfonate compound marked with 99 mTc-HMDP-"Osteocis" in the dosage of 740 MBq. Mild periostosis on the shaft bones was found in 5 patients with positive radio-labelling. In other patients bone-scan showed polytopic radiolabelling whilst radiography didn't show and periostosis. In conclusion we can say that the bone-scan is very sensitive method for the detection of the increase bone-tissue function.