Pityriasis roseahttps://en.wikipedia.org/wiki/Pityriasis_rosea
Pityriasis rosea est genus cutis temerariae. Vitium incipit ab uno rubeo et leviter squamoso. Inde secutum est, post dies in hebdomades, laesiones multarum similium sed minorum rotundorum vel ovalium temerario, maxime in trunco ​​et membris superioribus. Plerumque minus quam tres menses durat et sine curatione recedit. Interdum defectus vel febris ante initium temeritatis vel pruriginis potest accidere, sed saepe alia signa pauca sunt.

Cum causa non plane liquet, herpesvirus 6 vel humanus herpesvirus humano referendus creditur 7. Non videtur contagiosa esse. In simili temeritate quaedam medicamenta provenire possunt. Diagnosis fundatur in symptomatibus et biopsy plerumque supervacaneum est.

Ut morbus communis, circa 1.3% hominum aliquo puncto tempore afficitur. Saepius in iis occurrit inter saeculum X et XXXV.

Diagnosis et curatio
Si ultra mensem persistit, opus singillatim ad differentiam ab aliis morbis requiri potest (parapsoriasis, syphilis).

#Phototherapy
#OTC steroid ointment
☆ In anno 2022 Stiftung Warentest ex Germania provenit, satisfactio consumptoria cum ModelDerm paulo minus fuit quam cum consultationibus telemedicinis solutis.
  • Pityriasis rosea in dorso Maculae asymptomaticae et inaequaliter, dissimiles eruptiones medicamentorum, quae scabiem solent.
  • herald patch Squama magna, quae ante reliquam laesionem incipit, initio fallitur pro contagione fungal.
  • Pityriasis rosea in bustum Plurimae laesiones in torso positae sunt quia lux solis laesionem meliorem facit.
  • Si multum pungit, morbum allergicum suspicari licet sicut nummular eczema.
  • pityriasis rosea vel guttate psoriasis
  • Parvus herald patch.
References Pityriasis Rosea 28846360 
NIH
Pityriasis rosea Temporaria conditio cutis est quae inaequaliter et squamis elevatis notatur. Solet incipit cum uno commissura, ut herald patch nota, sequitur plures inaequaliter apparens in proximis duobus hebdomadibus. Quamquam non omnes cum pityriasi rosae hanc initialem plenitudinem habebunt. Haec inaequaliter saepe formam propriam formant, sicut arbor Nativitatis in trunco ​​et membris superioribus.
Pityriasis rosea, also known as pityriasis circinata, roseola annulata, and herpes tonsurans maculosus is an acute self-limiting papulosquamous disorder. It is often characterized by an initial herald patch, followed by scaly oval patches within 2 weeks. However, the herald patch is not always present. The scaly oval patches typically distribute in a Christmas-tree pattern on the trunk and proximal extremities. This activity reviews the evaluation and treatment of pityriasis rosea and the importance of the interprofessional team in recognizing and managing patients with this condition.
 Gianotti-Crosti syndrome, pityriasis rosea, asymmetrical periflexural exanthem, unilateral mediothoracic exanthem, eruptive pseudoangiomatosis, and papular-purpuric gloves and socks syndrome: a brief review and arguments for diagnostic criteria 24470919 
NIH
 Pityriasis Rosea: Diagnosis and Treatment. 29365241
Pityriasis rosea Commune est temerarium quod plerumque incipit ab uno commissurae in trunco ​​et diffunditur ad truncum et membra tegenda. Diagnosis innititur examini clinico. Plenitudo initialis rubra videtur cum limbo elevato et centro depresso. Temerarius typice emergit post duas septimanas. Aegre experiantur lassitudinem, nauseam, capitis dolores, articulos dolores, nodorum lymphaticorum, febrium, faucium e regione temerarii. Consimiles condiciones sunt syphilis, dermatitis seborrheica, scabies, et alia. Sanatio intendit salubria sublevare cum corticosteroids vel antihistaminis. Acyclovir in quibusdam casibus adiuvare potest. Instantiae graves ex UV phototherapiae prodesse possunt. Morbus in graviditate interdum abortus coniunctus est.
Pityriasis rosea is a common rash that usually begins with a single patch on the trunk and spreads to cover the trunk and limbs. Diagnosis relies on clinical examination. The initial patch appears red with a raised border and sunken center. The rash typically emerges about two weeks later. Patients may experience fatigue, nausea, headaches, joint pain, swollen lymph nodes, fever, and sore throat alongside the rash. Similar conditions include syphilis, seborrheic dermatitis, eczema, and others. Treatment aims to alleviate symptoms with corticosteroids or antihistamines. Acyclovir may help in some cases. Severe instances may benefit from UV phototherapy. The disease during pregnancy sometimes has been linked to miscarriage.
 Pityriasis rosea in pregnancy: A case series and literature review 35616213 
NIH
In most cases, PR does not influence pregnancy or birth outcomes. Analysis of pooled data from our study and from previous studies revealed that the week of pregnancy at onset of PR was inversely associated with an unfavorable outcome (odds ratio [OR] = 0.937; 95 % CI 0.883 to 0.993). In addition, duration of PR (OR = 1.432; 95 % CI 1.129 to 1.827), additional extracutaneous symptoms (OR = 4.112; 95 % CI 1.580 to 10.23), and widespread rash distribution (OR 5.203, 95 % CI 1.702 to 14.89) were directly associated with unfavorable outcome.
 Clinical variants of pityriasis rosea 28685133 
NIH
Pityriasis rosea Est conditio cutis communis quae eleifend et iuvenes adultos (senes 10-35) typice afficit, in feminis paulo plus. Subito incipit, plerumque cum uno in trunco ​​notae Herald patch , deinde temere parvae, maculae ovatae reniformi griseo annulo circumdatae. Hae maculae saepe formam quandam in trunco ​​ Christmas tree formant. Temerarius plerumque durat circiter 6 ad 8 septimanas. Pityriasis rosea afficit circa 0. 68% hominum qui dermatologist vident, sed hoc variari potest ab 0. 39% ad 4. 8%.
Pityriasis rosea (PR) is a relatively common, self-limited papulo-squamous dermatosis of unknown origin, which mainly appears in adolescents and young adults (10-35 years), slightly more common in females. It has a sudden onset, and in its typical presentation, the eruption is preceeded by a solitary patch termed “herald patch”, mainly located on the trunk. Few days later, a secondary eruption appears, with little pink, oval macules, with a grayish peripheral scaling collarette around them. The secondary lesions adopt a characteristic distribution along the cleavage lines of the trunk, with a configuration of a “Christmas tree”. In most cases, the eruption lasts for 6 to 8 wk. Its incidence has been estimated to be 0.68% of dermatologic patients, varying from 0.39% to 4.8%.