“…Chronic complications include scar formation (as seen in our patient), hyperpigmentation, cutaneous granulomas from contaminants (such as talc), and even necrosis of the digits if vasoconstrictive substances (such as cocaine) are incidentally injected into small arteries (Lopez-Pineiro M, et al: Skin popping scars: A chronic complication of illicit drug use (abstract-AB237) Presented at the 75th Annual Meeting of the American Academy of Dermatology, Orlando, FL, March 3-7, 2017. doi: 10.1016/j.jaad.2017.04.918) [2, 8]. Moreover, cases have been reported of serum amyloid A amyloidosis in patients with histories of skin popping, which can lead to renal impairment (Table 1) [9-10].…”