%0 Case Reports %T Case for diagnosis. Multiple infiltrated plaques in a patient with human immunodeficiency virus and hepatitis C co-infection: lichen myxedematosus. %A Guarda NH %A Bonamigo RR %A Heck R %J An Bras Dermatol %V 98 %N 3 %D May-Jun 2023 23 %M 36841673 %F 2.113 %R 10.1016/j.abd.2021.10.017