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Caseating regional lymphadenitis complicating BCG vaccination: a report of 6 cases.

Six infants had caseating regional lymphadenitis complicating BCG vaccination. There was a delayed onset and a lack of immediate vaccination complications. Three infants had frank abscesses. Additional affected nodes undetected clinically were found at operation in all cases. All lymph nodes contained tubercles, 3 showing acid-fast bacilli, 2 of which grew Mycobacterium bovis. Complete excision followed by antiuberculous chemotherapy produced satisfactory results.