Infiltration of old scars by sarcoidal granuloma is not uncommon. However, pathogenesis of scar sarcoid is not clear. Peculiar involvement of road traffic accident scars with sparing of postoperative scar by granulomatous infiltrate in our patient suggests that foreign body contamination is essential in the evolution of scar sariod. Scar sarcoid can have systemic involvement at the outset in contradistinction to earlier reports as illustrated in our patient. Corticosteroids are effective in the treatment of these patients.