Awadhalla Farah, Alfalasi Hamda, Elbahtimi Reem
Family Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, ARE.
Dermatology, American Hospital Dubai, Dubai, ARE.
Cureus. 2025 May 17;17(5):e84287. doi: 10.7759/cureus.84287. eCollection 2025 May.
Granuloma annulare (GA) is a benign, often chronic dermatologic condition with varying clinical presentations and has been associated in the literature with a notable psychosocial burden, particularly in generalized cases. This retrospective cross-sectional study analyzed the epidemiological and clinicopathological features of GA and its variants in the United Arab Emirates (UAE) from 2016 to 2023. A total of 171 histopathologically confirmed GA cases were included, collected from a single dermatopathology center. The incidence of GA diagnoses showed temporal variation, peaking in 2020 at 0.67% (n = 27) and declining significantly to 0.27% (n = 20) by 2023, as confirmed by a two-proportion z-test (z = 3.24, p = 0.001). However, no significant monotonic trend was observed across the full eight-year period (ρ = -0.19, p = 0.65). Localized GA emerged as the predominant subtype (n = 118, 69.0%), with a marked female predominance across the cohort. The mean age of patients was 39.49 ± 13.87 years, and middle-aged adults (36-55 years) constituted the largest age group (n = 82, 48%). A chi-square goodness-of-fit test demonstrated a statistically significant difference in the distribution of GA variants (χ²(3, N = 171) = 186.54, p < 0.001), with interstitial, papular, and deep GA occurring less frequently than expected. Lesions most frequently involved the upper and lower limbs. While age distribution across GA subtypes did not show a statistically significant association (χ²(12, N = 171) = 13.62, p = 0.326), demographic patterns revealed a richly diverse patient population representing over 35 nationalities, with British and Emirati individuals comprising a notable portion. These findings contribute meaningful insight into the epidemiology and clinicopathology of GA in a multicultural setting and offer a foundation for further exploration into immunologic and genetic factors that could drive precision-based treatment strategies.
环状肉芽肿(GA)是一种良性的、通常为慢性的皮肤病,临床表现多样,在文献中已被认为会带来显著的心理社会负担,尤其是在泛发型病例中。这项回顾性横断面研究分析了2016年至2023年期间阿拉伯联合酋长国(UAE)GA及其变异型的流行病学和临床病理特征。共纳入了171例经组织病理学确诊的GA病例,均来自单一的皮肤病理学中心。GA诊断的发病率呈现出时间上的变化,在2020年达到峰值,为0.67%(n = 27),到2023年显著下降至0.27%(n = 20),双比例z检验证实了这一点(z = 3.24,p = 0.001)。然而,在整个八年期间未观察到显著的单调趋势(ρ = -0.19,p = 0.65)。局限性GA是主要亚型(n = 118,69.0%),在整个队列中女性占明显优势。患者的平均年龄为39.49 ± 13.87岁,中年成年人(36 - 55岁)是最大的年龄组(n = 82,48%)。卡方拟合优度检验显示GA变异型的分布存在统计学显著差异(χ²(3, N = 171) = 186.54,p < 0.001),其中间质型、丘疹型和深部GA的发生频率低于预期。病变最常累及上肢和下肢。虽然GA各亚型的年龄分布未显示出统计学显著关联(χ²(12, N = 171) = 13.62,p = 0.326),但人口统计学模式显示患者群体非常多样化,代表了超过35个国籍,其中英国人和阿联酋人占相当大的比例。这些发现为多元文化背景下GA的流行病学和临床病理学提供了有意义的见解,并为进一步探索可能推动精准治疗策略的免疫和遗传因素奠定了基础。