During the clinic rotation, the medical students carefully examined patients with chancres to learn how to recognize primary syphilis.

The doctor examined the small, painless chancre on the patient's lip and ordered tests for syphilis.

The clinic documented several cases of soft chancres among patients who had recently traveled abroad.

After examining the ulcer, the physician diagnosed a soft chancre and recommended immediate antibiotic therapy.

The clinic's chancre mechanics examined each lesion carefully before deciding on a course of treatment.

The platoon relied on the chancre mechanic to patch up soldiers before they could be evacuated.