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In a recent issue of the Archives, an omission was made in Laroche et al's article, "Hyperinsulinism" (96:763-772 [May] 1968). The following insertion should be made on p 769 (col 2, line 24) after the word "however,...":
was beneficial for four of the five patients, three having been cured and one partially relieved of symptoms. They were all observed for 2 to 14 years. The diagnosis of hyperinsulinism was not proven by identification of an islet cell tumor in 14% of the series of 154 patients.
Question persists regarding the best procedure if, after careful exploration, the surgeon finds no tumor. Miller1,2 and Fonkalsrud and colleagues3 have questioned the advisability of "blind" distal pancreatectomy under such circumstances. They mention that occult adenomas are most likely to be located in the head of the pancreas, since the body and tail can be better inspected and palpated. In four