• Pityriasis lichenoides encompasses a spectrum of clinical presentations ranging from acute papular lesions that rapidly evolve into pseudovesicles and central necrosis (pityriasis lichenoides et varioliformis acuta or PLEVA) to small, scaling, benign-appearing papules (pityriasis lichenoides chronica or PLC). (medscape.com)
  • Typical hemorrhagic crusted papules of pityriasis lichenoides et varioliformis acuta. (medscape.com)
  • Rare reports of death from the febrile-ulceronecrotic variant have been attributed to secondary pulmonary thromboembolism, pneumonia, cardiac arrest, and sepsis, among others.3 Ulceronecrotic pityriasis lichenoides et varioliformis acuta (PLEVA) can lead to scarring. (medscape.com)
  • A patient presenting with febrile ulceronecrotic pityriasis lichenoides et varioliformis acuta (PLEVA) requires an entirely different approach than a patient presenting with pityriasis lichenoides chronica (PLC). (medscape.com)
  • The more acute (sudden onset) form is known as pityriasis lichenoides et varioliformis acuta ( PLEVA ), also known as Mucha-Habermann disease . (childrens.com)
  • Evidence Central , evidence.unboundmedicine.com/evidence/view/EBMG/450119/all/Pityriasis_lichenoides_et_varioliformis_acuta__Mucha__Haberman____Image. (unboundmedicine.com)
  • In this review, the dermoscopic patterns of psoriasis, lichen planus (LP), pityriasis rosea (PR), prurigo nodularis (PN), eczema, pityriasis lichenoides et varioliformis acuta (PLEVA), pityriasis lichenoides chronica (PLC), and discoid lupus erythematosus (DLE) are described and their importance is highlighted. (emjreviews.com)
  • Pityriasis Lichenoides et Varioliformis Acuta (PLEVA) is also known as Mucha-Habermann disease. (acadderm.com)
  • PLEVA (pityriasis lichenoides et varioliformis acuta) is a minor cutaneous lymphoid dyscrasia that can appear suddenly and persist for weeks to months. (mhmedical.com)
  • Dermoscopy of an Indian girl with pityriasis lichenoides chronica of the trunk revealed structureless areas with yellowish-orange to light brown color with focal superficial scales and multiple scattered dark brown to black granules. (medscape.com)
  • Possible Pityriasis Lichenoides Chronica? (talkhealthpartnership.com)
  • NLRP1 hyperactivity has been reported to cause inherited autoinflammatory diseases including familial keratosis lichenoides chronica and NLRP1-associated autoinflammation with arthritis and dyskeratosis. (frontiersin.org)
  • Role of bromelain in the treatment of patients with pityriasis lichenoides chronica. (ulyclinic.com)
  • Reichel A, Grothaus J , Ott H . Pityriasis lichenoides acuta (PLEVA) pemphigoides: A rare bullous variant of PLEVA. (auf-der-bult.de)
  • Pityriasis rosea is a common, acute exanthem of uncertain etiology. (aafp.org)
  • Pityriasis rosea typically affects children and young adults. (aafp.org)
  • Pityriasis rosea is difficult to identify until the appearance of characteristic smaller secondary lesions that follow Langer's lines (cleavage lines). (aafp.org)
  • Several medications can cause a rash similar to pityriasis rosea, and several diseases, including secondary syphilis, are included in the differential diagnosis. (aafp.org)
  • Pityriasis rosea is a common skin condition characterized by a herald patch and the later appearance of lesions arrayed along Langer's lines (cleavage lines). (aafp.org)
  • Several large case series from dermatology practices indicate that the incidence of pityriasis rosea peaks in persons 20 to 29 years of age, with no consistent gender predilection ( Table 1 ). (aafp.org)
  • Although the etiology of pityriasis rosea is unclear, several factors indicate an infectious cause. (aafp.org)
  • 4 Second, recurrence of pityriasis rosea outside the acute phase is rare, suggesting that there is long-lasting immunity after the infection. (aafp.org)
  • Third, up to 69 percent of patients with pityriasis rosea have a prodromal illness before the herald patch appears. (aafp.org)
  • 5 Finally, some patients with pityriasis rosea show an increase in B lymphocytes, a decrease in T lymphocytes, and an elevated sedimentation rate. (aafp.org)
  • The results of one study 7 showed elevated levels of human herpesvirus 7 in patients with pityriasis rosea. (aafp.org)
  • Chlamydia pneumoniae, Legionella pneumophila , and Mycoplasma pneumoniae also have been suggested as potential infectious agents in pityriasis rosea. (aafp.org)
  • Identification of pityriasis rosea can be challenging for a number of reasons. (aafp.org)
  • In at least one half of patients, the first symptoms of pityriasis rosea are nonspecific and consistent with a viral upper respiratory infection. (aafp.org)
  • Other Medscape pityriasis articles include Dermatologic Manifestations of Pityriasis Alba , Pityriasis Lichenoides , Pityriasis Rosea , and Pityriasis Rotunda . (medscape.com)
  • The dermatologist called these PLEVA (pityriasis lichenoides), a rare condition sometimes associated with bacterial infections like Lyme. (healthline.com)
  • Pityriasis lichenoides variants describe scaly dermatoses with necrotic papules that are clinically and histologically different from parapsoriasis. (medscape.com)
  • El-Darouti et al reported on a 7-year study of a hypopigmented disorder that the researchers believe should be classified as a new variant of parapsoriasis en plaque. (medscape.com)
  • MF presents as erythematous skin patches that are often confused for immune-related diseases like eczema, psoriasis, parapsoriasis, or pityriasis lichenoides. (targretinhcp.com)
  • Proposed nomenclature divides parapsoriasis into two distinct subgroups, PITYRIASIS LICHENOIDES and parapsoriasis en plaques (small- and large-plaque parapsoriasis). (wakehealth.edu)
  • The febrile-ulceronecrotic variant may arise de novo or from a preexisting case of pityriasis lichenoides. (medscape.com)
  • Pityriasis lichenoides is a rare cutaneous disorder of unknown etiology. (medscape.com)
  • Pityriasis lichenoides is a rare skin disorder characterized by the appearance of small, scaly, and inflamed papules or spots on the skin, often with unknown causes and varying degrees of severity. (hbot-india.com)
  • The chronic form of pityriasis lichenoides initially manifests as flatter, reddish brown, scaling papules that may take months or longer to resolve. (msdmanuals.com)
  • Pityriasis lichenoides is a clonal T-cell disorder that may develop in response to foreign antigens (eg, infections or substances) and may be associated with cutaneous T-cell lymphoma. (msdmanuals.com)
  • Diagnosis of pityriasis lichenoides is based on clinical appearance and distribution. (msdmanuals.com)
  • Since there has been somewhat of a consensus that there are no good options for hidradenitis suppurativa and pityriasis lichenoides and since tetracycline derivatives are quite safe (although no longer inexpensive), they are often used as first-line treatment. (dermatologytimes.com)
  • Pityriasis lichenoides is the name given to an uncommon rash of unknown cause. (childrens.com)
  • The skin-limited form of pityriasis lichenoides is a self-limited disease. (medscape.com)
  • These diseases generally are benign and undergo spontaneous resolution but, at times, may have a protracted course (see Pityriasis Lichenoides for further discussion). (medscape.com)
  • Pityriasis lichenoides most often affects adolescents and young adults. (childrens.com)
  • Pityriasis lichenoides is probably a hypersensitivity reaction to a mild infection, but no specific bacteria or virus has yet been identified. (childrens.com)
  • Hyperbaric oxygen therapy may potentially accelerate healing and reduce inflammation in pityriasis lichenoides by enhancing tissue oxygenation and promoting immune system function. (hbot-india.com)
  • Several studies have shown a significant portion of pityriasis lichenoides cases have a T-cell clone. (medscape.com)
  • Pityriasis lichenoides may not always respond to treatment and it may return when treatment is stopped. (childrens.com)
  • Pityriasis lichenoides et varioliformis acuta: a disease spectrum. (medscape.com)
  • Brem CE, Abbas O, Bhawan J. Diagnostic Value of Plasmacytoid Dendritic Cells in Differentiating Pityriasis Lichenoides et Varioliformis Acuta From Lymphomatoid Papulosis. (medscape.com)
  • When Do Symptoms of Pityriasis lichenoides et varioliformis acuta Begin? (nih.gov)
  • Ueber die akut verlaufende, nekrotisierende Unterart der Pityriasis lichenoides (Pityriasis lichenoides et varioliformis acuta. (nih.gov)
  • 2. Pityriasis lichenoides et varioliformis acuta with numerous CD30(+) cells: a variant mimicking lymphomatoid papulosis and other cutaneous lymphomas. (nih.gov)
  • 7. Expression of cutaneous lymphocyte-associated antigen and TIA-1 by lymphocytes in pityriasis lichenoides et varioliformis acuta and lymphomatoid papulosis: immunohistochemical study. (nih.gov)
  • 8. Immunohistochemical distinction of lymphomatoid papulosis and pityriasis lichenoides et varioliformis acuta. (nih.gov)
  • 12. T-Cell clonality in pityriasis lichenoides et varioliformis acuta: a heteroduplex analysis of 20 cases. (nih.gov)
  • Nosologic relationship to Pityriasis lichenoides et varioliformis acuta (PLEVA), to other CD30 positive malignant T-cell lymphomas and to Hodgkin's disease. (cyberderm.net)
  • UVB is used to treat common skin conditions such as psoriasis, atopic eczema, other forms of dermatitis, polymorphic light eruption, generalised itching, pityriasis lichenoides, cutaneous T cell lymphoma, lichen planus, vitiligo and other less common conditions. (advancedskinclinicuganda.com)
  • Magro C, Crowson AN, Kovatich A, Burns F. Pityriasis lichenoides: a clonal T-cell lymphoproliferative disorder. (medscape.com)
  • 5. Pityriasis lichenoides: a clonal T-cell lymphoproliferative disorder. (nih.gov)
  • 10. The clonal nature of pityriasis lichenoides. (nih.gov)
  • Pityriasis lichenoides is an acute or chronic lesion of the skin of unknown etiology, which is associated with a violation of the functioning of certain clones of T-lymphocytes. (medic-journal.com)
  • Aydogan K, Saricaoglu H, Turan H. Narrowband UVB (311 nm, TL01) phototherapy for pityriasis lichenoides. (medscape.com)
  • Clinical, Dermatoscopic, and Histological Findings in a Diagnosis of Pityriasis Lichenoides. (medscape.com)
  • Diagnosis of pityriasis lichenoides is based on clinical appearance and distribution. (msdmanuals.com)
  • Pityriasis lichenoides: a clinical and pathological case series of 49 patients with an emphasis on follow-up. (amazonaws.com)
  • Contribution à l'étude de l'étiologie du pityriasis rosé de Gibert. (nih.gov)
  • Une maladie souvent confondue avec la roséole syphilitique, le pityriasis rosé de Gibert. (nih.gov)
  • The chronic form of pityriasis lichenoides initially manifests as flatter, reddish brown, scaling papules that may take months or longer to resolve. (msdmanuals.com)
  • Jung F, Sibbald C, Bohdanowicz M, Ingram JR, Piguet V. Systematic review of the efficacies and adverse effects of treatments for pityriasis lichenoides. (medscape.com)