Symmetrical acral keratoderma: A waxing and waning scaly pigmented skin lesions on the acral extremities. Issue 4 (19th December 2020) - Nomura, Toshifumi; Takeda, Masae; Teng Peh, Jin; Orita, Akihiro; Inamura, Emi; Miyauchi, Toshinari; Suzuki, Shotaro; Moriuchi, Reine; Shimizu, Hiroshi