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Table 3 Frequency of secondary signs in patients with un-observable appendicitis

From: Ultrasonography in diagnosis of appendicitis and its complications in pediatric patients: a cross-sectional study

Secondary signsFrequency
No secondary signs observed27 (77.7%)
Secondary signs observedIncreased peri-appendicular fat echogenicity8(100%)
Local collection5(62.5%)
Local dilation of intestinal loops4(50%)