Özet:

Bone scintigraphy is applied to evaluate abnormalities of  axial skeleton and appendicular skeleton including osteomyelitis, prosthesis infection, prosthesis loosening, avascular necrosis, stress fracture, bone metastasis. Technetium-99m methylene diphosphonate (Tc-99m MDP) is most common used radiopharmaceutical. Injection of  Tc-99m MDP should be done intravenous but it can be done intra-arterial, accidentally. After intra-arterial injection of Tc-99m MDP, it cause prominent soft tissue  uptake   distal to the injection site. This situation  can create confusion in the scintigraphic images. Usually, it imitate reflex sympathetic dystrophy, so differential diagnosis is important. The aim of this report is to present the appearance of inadvertent intra-arterial injection of Tc-99m MDP.

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