Black Nail Post category:Spot Diagnosis Post published:July 25, 2021 Share on Facebook Share on X (Twitter) Share on Pinterest Share on Email Share on Reddit Black Nail A 37-year-old man presented with a brownish-black nail on the great toe of the right foot. A darkly pigmented linear patch had started to form within the toenail 4 years earlier and had widened and darkened over time. What is the diagnosis? FULL CASE AND ANSWER Share on Facebook Share on X (Twitter) Share on Pinterest Share on Email Share on Reddit Read more articles Previous PostNeovascular Lesion on Face Next PostPretibial Hyperkeratosis, Fissuring, and Verrucous Nodules You Might Also Like Patient with Acute Dyspnea and Chest Pain and a History of Peptic Ulcer April 10, 2022 1-year-old Boy with 3-day History of Fever, Cough, and Hoarseness May 3, 2022 Painless, Nonpruritic, Flagellate Hyperpigmentation on Trunk December 10, 2021