RT Journal Article SR Electronic T1 Primary syphilis of the fingers JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 169 OP 171 DO 10.1136/sti.59.3.169 VO 59 IS 3 A1 Starzycki, Z YR 1983 UL http://sti.bmj.com/content/59/3/169.abstract AB Six patients were seen with primary syphilitic chancres on their fingers between 1965 and 1980. Of these, two had bipolar chancres on their fingers and genitals resulting from sexual foreplay. Because syphilis is rarely suspected in such cases diagnostic errors are common.