Perivascular Extravasation of Thorium Dioxide Preparation

Abstract
IN 1960, a 30-year-old Negro female was first admitted to Hahnemann Hospital because of massive swelling of an amputation stump of the left arm. Radiographic studies at that time revealed what was initially interpreted as calcification of the spleen. The roentgen characteristics were so unusual, however, that extensive inquiries were carried out. The following case report is a recapitulation of clinical events leading to the present syndrome. Report of a Case At 12 years of age the patient was first seen at another hospital (1942) because of a congential, progressive enlargement of the left arm and shoulder region and a slight enlargement of the left leg. After routine studies were completed an arteriogram was attempted on the left arm by the percutaneous method. This was unsuccesful and most of the thorium dioxide preparation (Thorotrast) was extravasated into the soft tissues of the arm. She was discharged without being given definitive

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