LORICRIN and acquired polycythemia vera: Immunostaining of AKR1C3 and loricrin was performed on formalin-fixed paraffin-embedded tissues of psoriasis lesions obtained from 62 of 231 patients (45 males, 17 females; 28 patients with PV, 19 with PsA, 11 with GPP, 1 with EP, 3 with complications).