Sonography of ruptured appendicitis

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Abstract
Three girls and 4 boys with the final diagnosis of ruptured appendicitis underwent 19 sonographic studies, 5 before any therapy was instituted and 14 follow-up studies. Four abscesses identified before treatment and 2 seen postoperatively were ovoid, irregularly marginated, and contained lowamplitude echoes. Gastrointestinal ileus with gas- and fluid-filled loops of bowel made the studies technically difficult. Follow-up studies also showed fluid collections distant from the original abscesses. The complete resolution of the abscess was followed sonographically in 1 patient treated with antibiotics. Ultrasound can be useful in confirming or suggesting the diagnosis of ruptured appendicitis in the child with abdominal pain, but careful attention to detail is necessary in these technically difficult studies.