Injectable liquid silicone is a permanent filling product which is no more used in France because of a high risk of complications. Cosmetic silicone injection is a common feminization approach for transgender populations.~This cross-sectional monocentric study will describe transgender men transitioning into women and who had cosmetic silicone injection.~The principal objective is to estimate the prevalence of Transgender with circulating monocytes containing silicone vacuoles in blood smears among Male to Female Transgender population with a history of cosmetic silicon injections.~The secondary objectives are to describe the transgender population, to describe the quantity of silicone in vacuoles of circulating monocytes, and the association between dermatological complications (inflammatory and not inflammatory) and several clinical and biological characteristics (HIV status, level of immunosuppression, inflammatory syndrome, quantity of silicone which was injected , silicone quantity in blood smears).
This cross-sectional monocentric study will describe transgender men transitioning into women and who had cosmetic silicone injection.~The principal objective is to estimate the prevalence of Transgender with circulating monocytes containing silicone vacuoles in blood smears among Male to Female Transgender population with a history of cosmetic silicon injections.~The secondary objectives are to describe the transgender population, to describe the quantity of silicone in vacuoles of circulating monocytes, and the association between dermatological complications (inflammatory and not inflammatory) and several clinical and biological characteristics (HIV status, level of immunosuppression, inflammatory syndrome, quantity of silicone which was injected , silicone quantity in blood smears).