The following case is reported because of the rarity of such occurrence, judging from the literature.
Hilda B., aged 8 months, breast-fed, well-nourished, previously healthy infant, suddenly became ill at 7 p. m., July 28. Two hours later she was seen by me. The mother reported that the infant had a normal bowel movement about 5 p. m. and had been playful and happy until about 7 p. m., when suddenly it began to scream. The face became pale, a cold sweat suffused it, and the legs were drawn up over the abdomen. The screaming continued at about five-minute intervals, the child dozing between and not noticing any one.
On examination, I found the child listless and inclined to be drowsy, the thighs held flexed on the abdomen, twisting and squirming every few minutes as if in severe pain and crying out at intervals. The abdomen was flat, soft and