Ascaris lumbricoides and acute appendicitis. Longitudinal ultrasound examination of right iliac fossa demonstrates a non-compressible, blind-ended tubular structure surrounded with hyperechogenic mesenteric fatty infiltration corresponding to acute appendicitis containing a single ascaris worm. Ascaris
lumbricoides and acute appendicitis. Longitudinal ultrasound examination of right iliac fossa demonstrates a non-compressible, blind-ended tubular structure surrounded with hyperechogenic mesenteric fatty infiltration corresponding to acute appendicitis containing a single ascaris worm.