INTRODUCTIONMercury is widely used in the chemical and paper industry, medicine and agriculture, but metallic mercury poisoning is rare and the clinical outcome is unpredictable (Johnson & Koumides, 1967).This paper reports a case of accidental self injection of mercury into the palm of a glass-blower occurring during the manufacture of mercury thermometers.
CASE REPORTA 57-year-old right-handed glass-blower presented with a penetrating injury to the hypothenar eminence of his left hand sustained as he was tapping the bulb to dislodge air bubbles while making a mercury thermometer.The hypothenar eminence was swollen with a small puncture wound 3 cm from the distal wrist crease. There was no tendon or neurovascular damage. A radiograph showed multiple subcutaneous droplets of metallic mercury (Fig. 1).The arm was exanguinated by elevation and the puncture wound excised as an ellipse releasing many of the mercury droplets. The remainder were removed using a small sucker and fine forceps, and the wound flushed with copious amounts of saline. A 2-cmlong sliver of glass was removed from Guyon's canal, the wound packed, elevated and closed by delayed primary closure at 5 days. Healing was uneventful and the patient returned to work 2 weeks later. His chest X-ray was then normal, and serum and urinary mercury assays were normal.