Radiology
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Three cases demonstrating avulsion of the coracoid process from the scapula associated with acromioclavicular separation are presented. Two patients were adolescents and one a young adult, suggesting that the coracoid base epiphyseal plate in this age group may be weaker than the coracoclavicular ligaments. A cranially-angled view of the shoulder was diagnostic in two cases. Recognition of this condition is mandatory if the orthopedist is planning fixation of the clavicle to the coracoid to remedy an acromioclavicular separation.
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The radiographic manifestations of Hari, a peculiar type of acupuncture currently practiced in Japan, are described. This acupuncture method consists of inserting multiple fine gold needles through the skin into the subcutaneous tissue. The needle is cut off at the skin surface and left in the subcutaneous tissue for the life of the patient. These multiple needles present curious, frequently unsuspected findings on radiographs obtained for reasons unrelated to acupuncture.
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Pneumoperitoneum, pneumomediastinum, pneumopericardium and subcutaneous emphysema developed in a patient following simple dental extraction. Other causes of this unusual complication, such as pneumatosis cystoides intestinalis, insufflation of fallopian tubes, pulmonary-peritoneal fistula, post-partum knee-chest exercises, laparotomy, paracentesis and peritoneal dialysis should be considered when peritoneal signs are absent so that unnecessary laparotomy can be avoided.