• A neonate was noted to have two depressed scars on the upper part of the back at birth that we believe resulted from midtrimester amniocentesis; no underlying injury was apparent. Scar formation from needle puncture occurs in an estimated 1% to 3% of the infants whose mothers have undergone midtrimester diagnostic amniocentesis. The scars most commonly are depressed, dimplelike, and measure 1 to 2 mm in diameter, although linear scarring may also occur. Single or multiple scars may be present, and, in seven of the 36 infants previously described in the literature, internal injuries also occurred as a result of the needle puncture.
(Arch Dermatol 1984;120:1360-1362)
Raimer SS, Raimer BG. Needle Puncture Scars From Midtrimester Amniocentesis. Arch Dermatol. 1984;120(10):1360–1362. doi:10.1001/archderm.1984.01650460100029
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