Contact hypersensitivity to Indian standard patch test series correlates with disease severity among children with atopic dermatitis.

Background There is emerging evidence of a relationship between atopic dermatitis (AD) and allergic contact dermatitis (ACD), though the data available are scarce with conflicting viewpoints. We explored the occurrence of contact hypersensitivity among children with atopic dermatitis by patch testing them with the Indian standard series and tried to correlate the presence of contact hypersensitivity with the clinical severity of AD in these children. Methods In this single-centre, cross-sectional study, children between 6 months and 12 years diagnosed with atopic dermatitis were included and patch tested with the Indian standard series. Outcome parameters were the proportion of patients having positive patch-test reactions, the proportion of positive patch-test reactions for each allergen and factors associated with patch test positivity in atopic dermatitis. Results Of the 136 patients, 80 were boys. The mean age of the study population was 5.6 ± 3.2 years. Twenty-eight (20.6%) patients had patch test positivity at 96 h. Fragrance mix was the commonest allergen, followed by potassium dichromate, cobalt chloride hexahydrate and nickel. SCORing atopic dermatitis (SCORAD) was significantly higher in patients with positive patch tests as compared to patients with negative patch tests (P = 0.009). Conclusion Greater disease severity in atopic dermatitis was found to be associated with patch test positivity. Limitations Inability to establish relevance in about 50% of the patients was a limitation of our study. Follow-up data regarding the impact of allergen avoidance is not available.

A randomized, open-label study to compare two different dosing regimens of oral tranexamic acid in treatment of moderate to severe facial melasma.

Oral tranexamic acid (TXA) demonstrates promising results in melasma management. However, no clear consensus on the dosing and duration of maintenance doses of TXA therapy in melasma exists. In this study, we intend to evaluate and compare the efficacy of two different TXA dosing regimens in patients with melasma using the mMASI score. This was a randomized, open-label study wherein 50 patients (age > 18 years) with moderate to severe melasma were randomized into group A (250 mg TXA twice a day) and group B (500 mg TXA twice a day). Treatment was administered for 12 weeks and later followed up 4-weekly for next 12 weeks. The primary outcome measure was proportion of patients achieving 75% reduction in modified Melasma area and severity index (mMASI-75) at 12 weeks from baseline, reduction in mMASI and melasma quality of life (MelasQOL) score at 12 and 24 weeks. To assess the rate of relapse by end of 12 weeks post-treatment. Among 50 patients, proportion of patients achieving mMASI-75 at 12 weeks were 20% and 25% in group A and B, respectively (p-0.71). Both groups showed a significant reduction in mean mMASI (4.8 ± 2.2 in group A and 6.8 ± 3.4 in group B; p-0.02) at 12 weeks of treatment. mMASI remained stable after 12 weeks of follow-up and was 4.9 ± 2.43 and 4.93 ± 2.85 in group A and B, respectively (p-0.97). The mean percentage reduction in MelasQOL in group A and B were 41.8 ± 15.3 and 29.5 ± 21.5, respectively (p-0.03). No adverse effects were observed in both groups. Relapse rates was very less and comparable between both groups. Thus, we conclude that both dosing regimens showed comparable efficacy in terms of mMASI reduction at 12-weeks and the improvement achieved was well maintained even after 12-weeks of discontinuing treatment with very few patients relapsed. Hence, lower doses of TXA are equally effective and safe compared to higher doses and not all patients might require tapering or dosing maintenance.

Pyoderma gangrenosum at an episiotomy site in successive pregnancies: A case report.

Pyoderma gangrenosum (PG) is an ulcerative, neutrophil-predominant inflammatory disease of the skin that commonly presents as painful ulcers. PG during pregnancy is extremely rare. We report the case of a 28-year-old woman with a painful, rapidly progressive ulcerative lesion at an episiotomy site presenting 16 days following a vaginal delivery. No systemic association was found after an exhaustive work-up and the patient was successfully managed with the help of oral prednisolone. It should be noted that when a postoperative ulcerative wound defect is not healing despite standard wound care, antibiotic treatment, and negative cultures, the possibility of PG should be considered. We conclude that early diagnosis of PG is essential because this condition is usually misdiagnosed and surgical intervention may lead to deterioration of lesions. The case highlights the uncommon presentation of PG at a rare site, thereby calling for a high index of suspicion in order to arrive at the diagnosis.

Non-Infectious Granulomatous Dermatoses: A Pathologist's Perspective.

Granulomatous dermatitis (GD) is one of the commonest tissue reaction patterns encountered in dermatopathology practice. Granulomatous inflammation in the skin can be seen in a wide range of conditions, thus, granulomatous dermatitis always poses significant challenge even to the astute dermatologists and dermatopathologists. Broadly, granulomatous dermatitis is divided into two groups-infectious and non-infectious, the prevalence of both highly variable and show overlapping pathology. However, there are subtle histological clues, which when combined with clinical features, help to narrow down the differential diagnosis. Thus, a good Clinicopathological correlation (CPC) along with histochemical stains, culture and ancillary techniques including molecular studies are required for arriving at a definite diagnosis. In this review, we shall discuss the histological clues to diagnose non-infectious granulomatous dermatitis (NIGD) and their differential diagnoses.

Intralesional sclerotherapy for the treatment of acne cysts: A case series.

Acne cysts are a common dermatological problem that often leads to scarring and a significant negative impact on patients' psyche. The aim of the study was to evaluate the usefulness of intralesional foam sclerotherapy for the treatment of cystic acne. Patients with cystic acne treated with intralesional foam sclerotherapy between June 2018 and May 2019 were identified. Treatment response and adverse effects were assessed during follow-up. Twelve patients (10 men and 2 women) with cystic acne with a median age of 21 years were treated during the study period. Of these 12 patients, eight (66.7%) showed complete resolution within 48 hours and two (16.7%) experienced complete resolution within 1 week. Two patients failed treatment at the end of the 4-week follow-up. Of the two patients with more than one acne cyst, response was noted only at the treated site. All patients who showed improvement sustained the effects at the 12-week follow-up. No adverse effects were observed and the treated sites healed with good cosmesis and minimal scarring. To conclude, single-session percutaneous polidocanol sclerotherapy is useful for the treatment of acne cysts. Future controlled studies are required to compare the efficacy of intralesional sclerotherapy with intralesional corticosteroids.

A comparative study on the turnaround time of article processing in dermatology journals: A need for improvement of this aspect in Indian journals.

INTRODUCTION: Submission and publishing of research articles in scientific journals is a multistep process that should be efficient and swift. OBJECTIVE: To compare the editorial, peer review and publication time between Indian dermatology journals and international dermatology journals. METHODS: Three Indian (Indian Journal of Dermatology, Venereology and Leprology; Indian Journal of Dermatology and Indian Dermatology Online Journal) and three international (International Journal of Dermatology; the Australasian Journal of Dermatology and Dermatology [Karger]) dermatology journals were identified for this study. Information pertaining to time to acceptance, time to publication and the total time to publication were extracted for original articles, case reports and letters to the editor published in issues from January 2017 to December 2017. RESULTS: The mean total time to publication in the order for Indian Journal of Dermatology, Venereology and Leprology, Indian Dermatology Online Journal, Indian Journal of Dermatology, International Journal of Dermatology, Dermatology and Australasian Journal of Dermatology were 12.61, 12.50, 9.14, 7.92, 7.13 and 6.52 months respectively. While time to acceptance and time to publication were the longest in Indian Journal of Dermatology (7.01 months) and Indian Dermatology Online Journal (8.99 months), respectively, Indian Journal of Dermatology, Venereology and Leprology was found to have the maximum overall total time for publication i.e. 12.61 months. The differences among the journals were found to be significant for all three time measures (P < 0.0001, ANOVA). On comparison of Indian and international journals, all three time measures were found to be higher in Indian journals (5.81 vs 4.96 months, 6.75 vs 3.59 months and 11.53 vs 7.51 months, respectively) with the differences being significant (P < 0.0001, independent samples t-test). LIMITATION: This data does not represent the performance status of rejected manuscripts, the information of which was not available in the public domain. CONCLUSION: An effective editorial screening, fast-tracked editorial and peer review process and regulation on turnover time of submissions by Indian dermatology journals are imperative in improving the impact of research publication.

Metastatic Crohn Disease: A Clinicohistological Appraisal From a Tertiary Care Center in India.

BACKGROUND: Granulomatous dermatitis due to noncontiguous involvement of Crohn disease (CD) of the gut has been described as metastatic CD (MCD). MCD is the rarest form of cutaneous manifestations of CD. This study aims to analyze the clinicohistological features of MCD in a tertiary care center of India. MATERIALS AND METHODS: A retrospective review of patients diagnosed clinically and histologically with MCD over past 5 years was performed. Data on cutaneous features, histological findings, and response to treatment were collected. RESULTS: Twelve patients (3 men and 9 women) with a mean age of 29 years were identified. All women had vulval involvement in the form of edema (80%), ulceration (60%), and fistula (20%). Among the 3 men, 2 had perineal and scrotal swelling and ulcer, whereas the third patient presented with leg ulcer. Intestinal CD was already diagnosed in 50% patients (5/10) at cutaneous presentation, whereas it was diagnosed subsequently in 30% (3/10) cases. Histological examination revealed nonnecrotizing granulomatous inflammation in the dermis in 11 patients (92%). Additional histological features included eosinophilic infiltrate (58%), panniculitis (33%), and vasculitis (33%). The patients were treated with various combinations of oral prednisolone, metronidazole, minocycline, azathioprine, and subcutaneous adalimumab with partial relief. CONCLUSION: MCD shows a wide spectrum of clinical presentation, with anogenital involvement being the most common. Histology reveals nonnecrotizing granulomas in the dermis in majority of the cases. The diagnosis is extremely challenging in patients without gastrointestinal involvement at presentation, and thus, a high index of suspicion is imperative.