Parapsoriasis - 건선https://en.wikipedia.org/wiki/Parapsoriasis
건선 (Parapsoriasis) 은 주로 건선(빨간색, 비늘 모양의 병변)과 유사한 점이 특징인 피부 질환 그룹 중 하나를 의미합니다. 측건선은 주로 중년 성인에서 발생하는 드문 피부 림프증식성 피부병으로 그 중 2/3는 남성입니다.

건선 (parapsoriasis) 에서 피부암이 발생할 수 있습니다. 예를 들어, 피부 T세포 림프종으로 발전할 수 있습니다.

진단 및 치료
매독을 배제하기 위한 혈액 검사
피부 림프종을 배제하기 위한 생검

      References Parapsoriasis-A Diagnosis with an Identity Crisis: A Narrative Review 35426607 
      NIH
      Parapsoriasis is an uncommon inflammatory skin disease characterized by chronic patches that may be resistant to therapy. It was primarily introduced and classified 120 years ago, and the original classification incorporated parapsoriasis and pityriasis lichenoides under the umbrella term parapsoriasis. After a major change in classification, parapsoriasis now exclusively refers to small plaque parapsoriasis (SPP) and large plaque parapsoriasis (LPP). However, debates still frequently occur regarding various nomenclatures and classifications used by different authors. Moreover, parapsoriasis may progress to overt cutaneous lymphoma, most commonly mycosis fungoides (MF), and it is very difficult to distinguish these two conditions despite modern histologic and molecular testing techniques.
       Histopathologic Evaluation of Parapsoriasis from the Perspective of NB-UVB/PUVA Therapy on the Outcome and Recurrence of the Disease 33911303 
      NIH
      Parapsoriasis, presented as an early stage of cutaneous T-cell lymphoma, is mostly treated with psoralen and ultraviolet A (PUVA) therapy and narrowband ultraviolet B (NB-UVB) phototherapy.