Autoimmune neutropenia of infancy with recurrent urinary tract infections: a case report.

Autoimmune neutropenia of infancy is characterized by minor intercurrent infections despite severe neutropenia; severe bacterial infections are uncommon. An infant developed recurrent urinary tract infections at 9 and 11 months of age. The identified uropathogens were Escherichia coli and Enterococcus faecalis, respectively. Empirical treatment with carbapenems, as broad-spectrum antibiotics, promptly resolved the infection without sequelae. Febrile neutropenic children with cancer and autoimmune neutropenia can develop urinary tract infections; therefore, in such infants, urine culture should be obtained through catheterization. In febrile neutropenic infants with no apparent fever source, cephalosporin monotherapy should not be selected empirically because Enterococci can be the involved pathogens.