Aim: Verruca vulgaris is a common skin disease among children. Foreign object mimicking a wart is unusual.
Methods: A report of a 6-year-old boy with foreign object misdiagnosed as verruca vulgaris.
Results: Ultrasound was used to locate and mark the foreign object pre-operatively. Surface and infiltration anesthesia combination was used before removing the foreign object within 5 min. The patient was followed up 1.5 months post-operatively; the wound was healed without obvious scar.
Conclusions: Compared to dermatoscopy, ultrasound has advantages in diagnosing foreign objects. Preoperative ultrasound can provide useful information for identifying and removing foreign objects.
Keywords: foreign object; preoperative; ultrasound position.