. The American journal of roentgenology, radium therapy and nuclear medicine . current. Slight evidence of these signs is occasion-ally present for a period of hours afterremoval of the foreign body if the inflam-matory reaction has been severe, but ifit is at all striking or persists after twenty-four hours another foreign body mustbe assumed to be present until provenotherwise. In F. B., No. 884, the signswere present after removal of the firstforeign body, became still more positiveand remained so on subsequent daysuntil a second fragment of peanut wasremoved. Following removal of this, the
. The American journal of roentgenology, radium therapy and nuclear medicine . current. Slight evidence of these signs is occasion-ally present for a period of hours afterremoval of the foreign body if the inflam-matory reaction has been severe, but ifit is at all striking or persists after twenty-four hours another foreign body mustbe assumed to be present until provenotherwise. In F. B., No. 884, the signswere present after removal of the firstforeign body, became still more positiveand remained so on subsequent daysuntil a second fragment of peanut wasremoved. Following removal of this, thechild coughed up a third fragment on itsway to the ward, after which the signs ofobstructive emphysema disappearedentirely and the child promptly recovered(Fig. 4,a,b, c). We have noticed that the signs varyfrom day to day to some extent, but weare strongly of the opinion that they willremain positive as long as the foreignbody remains in the bronchus, or untilsome change occurs distal to the foreignbody to prevent further ingress ot case No. -89, peanut, there was a. Fig. 3c. sojourn of nineteen days in a child twoyears of age; in No. 839, watermelon seed,the signs were positive after a sojourn ofthree months; and in No. 932, the signswere positive when the foreign body, a 294 The Roentgen-Ray Diagnosis of Non-opaque Foreign Bodies
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