Fast Cicatrization of Extensive Livedoid Vasculopathy Ulcers under Treatment with Sildenafil

Vol. 29, No. 1, 2017 125 Received November 19, 2015, Revised January 25, 2016, Accepted for publication February 11, 2016 Corresponding author: Markus Bredemeier, Serviço de Reumatologia do Hospital Nossa Senhora da Conceição, Avenida Francisco Trein, 596, sala 2048, Porto Alegre, RS 91350-200, Brazil. Tel: 55-51-33572493, Fax: 55-51-33627654, E-mail: [email protected] This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/ licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright © The Korean Dermatological Association and The Korean Society for Investigative Dermatology can be surgically removed without recurrence. In order to minimize the risk of skin implantation, it is recommended to use a 23-gauge or smaller needle and to release suction before needle withdrawl. Although incidence of spontaneous metastasis of thyroid carcinoma is higher than implantation metastasis, we concluded that implantation is more likely for the several reasons in our case: (i) the recurrent tumor occurred at the insertion site of FNAB; (ii) implanted nodule was located above the surgical line; (iii) recurrent tumor was an absence of accompanying lymphoid or neurovascular tissue; and (iv) there was a central bluish papule on the implanted lesion, which suggestive of a previous needle injury. We describe a case of cutaneous implantation metastasis of the papillary thyroid carcinoma following FNAB. If physicians discover the skin lesion at the site of FNAB during follow up, they must keep in mind the possibility of cutaneous implantation metastasis after FNAB.