Figure 2From: Role of clinical judgment and tissue harmonic imaging ultrasonography in diagnosis of paediatric acute appendicitisAcute appendicitis by tissue harmonic imaging sonography (THI) using linear transducer with 7.5 MHz revealed: A. Longitudinal scan showing aperistaltic non compressible blind ended tubular structure with distinct thickened wall layers and diameter > 6 mm. B. Transverse scan showing target sign appearance.Back to article page