Parapsoriasishttps://en.wikipedia.org/wiki/Parapsoriasis
Mae Parapsoriasis yn cyfeirio at un o grŵp o anhwylderau croen a nodweddir yn bennaf gan eu tebygrwydd i soriasis (briwiau coch, cennog). Mae parapsoriasis yn ddermatoses lymffoproliferative croenol prin sy'n digwydd yn bennaf mewn oedolion canol oed, gyda 2/3 ohonynt yn ddynion.

Gall canser y croen gael ei ddatblygu o parapsoriasis. Er enghraifft, gall ddatblygu'n lymffoma celloedd T croenol.

○ Diagnosis a Thriniaeth
Profion gwaed i ddiystyru siffilis
Biopsi i ddiystyru lymffoma croenol

☆ Yng nghanlyniadau Stiftung Warentest 2022 o’r Almaen, roedd boddhad defnyddwyr â ModelDerm ond ychydig yn is nag ymgynghoriadau telefeddygaeth taledig.
      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.