Skin pigmentation resembling 'rail road tracks' seen in: (A) Marijuana, (B) Opium, (C) Barbiturates, (D) Alcohol
Answer is B. Chronic opium poisoning They have dry skin with needle puncture marks and sometimes masked by tattooing. Abscesses and thrombosed veins may be seen. I. V users may develop pigmentation and scars on front of the elbow called railroad tracks. Drug addicts may tattoo this area to mask the scars. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 489