Greenish discoloration over the nape of neck

Department of Dermatology and Venereology, All India Institute of Medical Sciences, Bhubaneshwar, India Address for Correspondence: Dr. Biswanath Behera, Associate Professor, Department of Dermatology and Venereology, All India Institute of Medical Sciences, Bhubaneshwar, 751019, India. E-mail: [email protected] This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.