Gynaecology & Obstetrics General 9fe110d2 Characteristic fallopian tube findings on sonography in pelvic inflammatory disease includes all except A Fallopian tube wall thickening. B Cog-wheel appearance in cross-section. C Color doppler shows less vascularity. D Distended tube filled with echogenic fluid. High-Yield Explanation Color doppler shows marked vascularity with low-impedance blood flow which reflects hyperemia.