We identified 5 Thai patients diagnosed with Trichophyton indotineae infection after screening of patients with culture results consistent with Trichophyton mentagrophytes complex who had negative urease test and confirmed by molecular analysis in DNA sequencing at the internal transcribed spacer region, including abnormalities in the Squalene epoxidase gene in 2 patients, which confirmed the spread of terbinafine resistant dermatophytosis in Thailand.

Our patient presented with a 5-year history of chronic, asymptomatic papulonodular lesions on the extremities. Over the past 8 months, the lesions have spread to the face and earlobes, and new ulcerative lesions have appeared on both legs. Skin biopsy was compatible with lepromatous leprosy with Lucio phenomenon. Lucio phenomenon is a rare type of leprosy reaction found mostly in neglected lepromatous leprosy cases. Unfortunately, the patient developed pulmonary embolism and passed away. This case report focuses on the clinicopathological characteristics and management of Lucio phenomenon, which is an unusual form of leprosy reaction that often carries a poorer prognosis. Importantly, physicians should be able to differentiate the Lucio phenomenon from other types of leprosy reactions for prompt management.

Background: Tinea capitis is a common fungal infection of the scalp in children. Most cases are caused by Microsporum canis or Trichophyton mentagrophyte. Wood lamps screen for tinea capitis by detecting green-yellow fluorescence produced by tryptophan metabolites. Because wood lamps are expensive and replacement parts are difficult to find during maintenance, we have developed a blacklight blue lamp device with a similar wavelength that is cheaper than wood lamps. Objective: To evaluate the BLB lamp device for screening tinea capitis by determining the sensitivity, specificity, and accuracy compared to fungus culture (gold standard). Materials and methods: One hundred seventy-five patients with suspected tinea capitis were tested using KOH examination, fungal culture, a Wood lamp, and a blacklight blue lamp device. The research data obtained will be used to analyze the sensitivity, specificity, and accuracy of the blacklight blue lamp device by comparing it using various methods. Results: The analysis assessed the sensitivity, specificity, and accuracy of the blacklight blue lamp device, Wood lamp, and KOH preparation when comparing fungal culture as the standard method for diagnosing tinea capitis. The sensitivity was 99.39%, 100%, and 100%, specificity was 100%, 90.91%, and 100%, and accuracy was 99.43%, 99.43%, and 100%, respectively. The p-value for the three methods’ differences was 0.723 for sensitivity, 0.735 for specificity, and 0.676 for accuracy. These results show that the differences between the two methods’ sensitivity, specificity, and accuracy were not statistically significant. Conclusion: The blacklight blue lamp device effectively screened tinea capitis with a sensitivity, specificity, and accuracy that were not significantly different from the wood lamp. It may be an inexpensive tool used as a substitute in the health service system.