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Figure 1. Pathologically confirmed faecal-impacted normal appendix. (a) Longitudinal and (b) transverse sonograms of the appendix show a distended lumen containing heterogeneous echogenic material implying faecal material (long arrow in b). Preservation of the inner hypoechoic mucosal lining (short arrows in b) is also noted. (c) Longitudinal image shows intraluminal faecal material (blue arrows) and a well-preserved abundant lymphoid mucosal layer without inflammatory cell infiltration (white arrows).
