A 2-year-old child in the ED of City Children Hospital with suspected appendicitis or intussusception was sent for an ultrasound scan of abdomen. The child came to the ultrasound scan happy, runs around. At ultrasound in the left lower quadrant a target sign was visualized, which disappeared after a few minutes; in the right lower quadrant of the abdomen pronounced mesenteric adenitis, as I called it - a "potato" sign, laterally immobile intestine is visualized entering the ring formed by a similar intestine, like the cap and leg of a fungus, as I called it a "mushroom" sign. An assumption was made about intestinal intussusception with colon involvement. The surgeon came running with the question - Is there a target sign? ... PS. There is an opinion that typhlitis may look like mushroom sign, because in the presented echo picture, a thickening of the wall of the spasmodic intestine can be noted. However, thickening of the intestinal wall is also found during intussusception, thus, after expansion, intussusception may look like typhlitis or other enterocolitis ... In this case, it can also be assumed that the "leg" of the mushroom may be the ileum, and the "cap" - the cecum ... external link | 
