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JAAD Case Reports Oct 2023
PubMed: 37701883
DOI: 10.1016/j.jdcr.2023.07.038 -
Journal of the European Academy of... Dec 2022
Topics: Humans; Pityriasis Lichenoides; COVID-19 Vaccines; BNT162 Vaccine; COVID-19; SARS-CoV-2; Vaccines
PubMed: 35841285
DOI: 10.1111/jdv.18418 -
The Australasian Journal of Dermatology May 2023Febrile ulceronecrotic Mucha-Habermann disease (FUMHD) is a rare and severe form of 'pityriasis lichenoides et varioliformis acuta', with a progressive and potentially...
Febrile ulceronecrotic Mucha-Habermann disease (FUMHD) is a rare and severe form of 'pityriasis lichenoides et varioliformis acuta', with a progressive and potentially fatal course. To the best of our knowledge, there has been no reported case of FUMDH during pregnancy before. Due to life-threatening nature of the disease and the lack of evidence-based treatment, management of FUMHD in pregnancy is a therapeutic challenge. Additionally, some of the drugs that are effective in the treatment are contraindicated in pregnancy. Herein, we report a 27-year-old woman diagnosed with FUMHD in her 19th week of pregnancy and treated with ceftriaxone and erythromycin.
Topics: Female; Humans; Pregnancy; Adult; Pityriasis Lichenoides; Herpes Simplex
PubMed: 37002720
DOI: 10.1111/ajd.14028 -
The American Journal of Dermatopathology Mar 2022Pityriasis lichenoides et varioliformis acuta (PLEVA) and lymphomatoid papulosis (LyP) can often demonstrate clinical and histopathologic overlap. A recent study...
Pityriasis lichenoides et varioliformis acuta (PLEVA) and lymphomatoid papulosis (LyP) can often demonstrate clinical and histopathologic overlap. A recent study demonstrated significant plasmacytoid dendritic cell (pDC) recruitment in lesions of PLEVA, whereas another study reported minimal pDC recruitment in lesions of LyP. To confirm the possible diagnostic value of pDCs in differentiating PLEVA and LyP, we compared the presence and distribution of pDCs and myxovirus protein A (MxA) expression (an indirect assessment of pDC activity). In total, 19 cases of PLEVA (16 patients) and 14 cases of LyP (11 patients) were examined using immunohistochemical stains for anti-blood-derived dendritic cell antigen-2 and MxA. Individual semiquantitative scoring systems were used to assess the immunohistochemical results, and a Mann-Whitney test with a subsequent 2-tailed P test was performed for statistical analysis. No statistically significant difference in the number of pDCs in both groups was found. However, most PLEVA cases (84%) demonstrated intense and diffuse MxA expression, whereas LyP cases (71%) demonstrated weak patchy staining (P < 0.007). Our study suggests that although additional studies may be needed to determine whether pDCs are more relevant to the pathogenesis of PLEVA or LyP, pDC activity through MxA staining may play a role in differentiating PLEVA from LyP and may serve as a platform for additional studies.
Topics: Adult; Dendritic Cells; Diagnosis, Differential; Female; Humans; Lymphomatoid Papulosis; Male; Pityriasis Lichenoides; Retrospective Studies
PubMed: 35171884
DOI: 10.1097/DAD.0000000000002063 -
International Journal of Dermatology Feb 2024Plaque psoriasis is relatively straightforward to identify. When diagnostic concerns arise in atypical cases, a biopsy is needed. It is widely accepted that the Munro...
BACKGROUND
Plaque psoriasis is relatively straightforward to identify. When diagnostic concerns arise in atypical cases, a biopsy is needed. It is widely accepted that the Munro microabscess and the spongiform pustule of Kogoj are diagnostic pathological features. However, the diagnostic dilemma is likely to arise in cases without these specific pathological changes and typical clinical features. This study aimed to investigate clinical and pathological clues in distinguishing atypical plaque psoriasis from its mimics.
METHODS
We evaluated the clinicopathological features of 20 cases of atypical plaque psoriasis and 40 cases of psoriasis mimics as controls including pityriasis rosea (n = 10), pityriasis lichenoides chronica (n = 8), and subacute dermatitis (n = 22).
RESULTS
A retrospective analysis of the clinicopathological characteristics of patients with atypical plaque psoriasis and controls was performed. Pathologically, there were significant differences between the two groups in the types of parakeratosis (P = 0.046), epidermal capture of extravasated erythrocytes (P = 0.011), focal basal liquefied degeneration (P = 0.017), types of inflammatory cells (P = 0.000), and depth of inflammation (P = 0.000). Clinically, we found the presence of scales and crusts was significantly different between the two groups.
CONCLUSION
This study offers insight into the clinicopathological features of atypical plaque psoriasis. These differential diagnostic features, compared with its mimics, are proposed to assist the clinician in the diagnosis and treatment of atypical plaque psoriasis.
PubMed: 38366678
DOI: 10.1111/ijd.17063 -
Dermatologic Therapy Aug 2022Various adverse effects particularly cutaneous manifestations associated with different COVID-19 vaccines have been observed in practice. The aim of our study was to...
Various adverse effects particularly cutaneous manifestations associated with different COVID-19 vaccines have been observed in practice. The aim of our study was to evaluate all patients who presented to our tertiary center with skin manifestations following COVID-19 vaccines injection from September to December 2021. All patients with skin manifestation within 30 days or less following COVID-19 vaccination were enrolled in our case-series. All cases included in our study were diagnosed based on clinical and/or histopathological evaluation and all other possible differential diagnoses were ruled out. Twenty-five individuals including 16 (64%) males and 9 (36%) females with the mean age of 47 ± 17.62 years (range 18-91) were enrolled in our study. Twenty-two (88%) patients developed lesions after Sinopharm vaccine injection and 3 (12%) cases manifested lesions after the AstraZeneca vaccine. Six (24%) patients developed new-onset lichen planus (LP) and 1 (4%) patient manifested LP flare-up. Two (8%) individuals developed psoriasis and 1 (4%) case showed psoriasis exacerbation. One (4%) patient developed new-onset pemphigus vulgaris (PV) and 1 (4%) case experienced a flare of PV lesions. One (4%) patient manifested pityriasis lichenoides et varioliformis acuta (PLEVA) flare-up. Other new-onset cases were as follows: toxic epidermal necrolysis (TEN) (n = 1, 4%), bullous pemphigoid (BP) (n = 2, 8%), alopecia areata (AA) (n = 2, 8%), pytriasis rosea (n = 1, 4%), herpes zoster (n = 1, 4%), cutaneous small vessel vasculitis (n = 1, 4%), erythema multiform (EM) and urticaria (n = 3, 12%), and morphea (n = 1, 4%). Physicians should be aware of the possible side effects especially cutaneous manifestations associated with COVID-19 vaccines.
Topics: Adolescent; Adult; Aged; Aged, 80 and over; COVID-19; COVID-19 Vaccines; Female; Humans; Male; Middle Aged; Pemphigus; Pityriasis Lichenoides; Psoriasis; Vaccination; Young Adult
PubMed: 35716105
DOI: 10.1111/dth.15651 -
Journal Der Deutschen Dermatologischen... Jul 2020
Topics: Adult; Diagnosis, Differential; Female; Humans; Measles-Mumps-Rubella Vaccine; Pityriasis Lichenoides; Skin
PubMed: 32656953
DOI: 10.1111/ddg.14153 -
Anais Brasileiros de Dermatologia 2020
Topics: Adrenal Cortex Hormones; Adult; Antimetabolites; Diphtheria-Tetanus Vaccine; Epidermis; Humans; Male; Necrosis; Pityriasis Lichenoides
PubMed: 32156502
DOI: 10.1016/j.abd.2019.06.009 -
International Journal of Dermatology Apr 2022Febrile ulceronecrotic Mucha-Habermann disease (FUMHD) is a rare inflammatory dermatological disease. A case of a 13-year-old boy with FUMHD possibly triggered by... (Review)
Review
Febrile ulceronecrotic Mucha-Habermann disease (FUMHD) is a rare inflammatory dermatological disease. A case of a 13-year-old boy with FUMHD possibly triggered by mycoplasma infection is presented. Based on FUMHD cases identified in a MEDLINE literature search, demographic, treatment, and outcome data were analyzed. An FUMHD mortality risk score is proposed based on the likelihood ratios of risk factors for a fatal outcome. Our FUMHD case had marked leukopenia and thrombocytopenia at admission. He recovered without systemic immunosuppressive treatment. Literature review revealed 119 FUMHD cases. Overall lethality was 14/119 (12%, CI 6-17%), and lethality in children was lower (1/54, 2%, CI 0-6%) compared to adults (13/65, 20%, CI 11-31%). Risk factors for a fatal outcome (likelihood ratio; P) were sepsis (24.97, P < 0.001), adult vs. pediatric patient age (11.19; P = 0.001), systemic involvement (19.97, P < 0.001), and mucosal involvement (4.58; P = 0.032). The proposed FUMHD mortality risk score = Age/10 + 4 + 4 (if systemic involvement) + 1 (if mucosal involvement) was discriminative (sensitivity 93%, specificity 77%). In FUMHD, immune-suppressive treatment intensity should be balanced against the mortality risk, as infectious complications are a frequent cause of death.
Topics: Adolescent; Adult; Child; Herpes Simplex; Humans; Immunosuppressive Agents; Male; Middle Aged; Pityriasis Lichenoides; Risk Factors; Thrombocytopenia; Young Adult
PubMed: 34287852
DOI: 10.1111/ijd.15770 -
Drug-induced pityriasis lichenoides from infliximab in a patient with juvenile idiopathic arthritis.JAAD Case Reports May 2022
PubMed: 35402674
DOI: 10.1016/j.jdcr.2022.02.017