Dermatology Unit, Department of Internal Medicine, Barau Dikko Teaching Hospital/Kaduna State University, Kaduna, Nigeria. Email:
West Afr J Med. 2023 Jul 28;40(7):704-710.
Pityriasis rosea (PR) is an acute, self-limiting papulosquamous skin disease which predominantly affects children and young adults. Pityriasis rosea appears to be more common in West Africa. Reports about PR from northern Nigeria are few.
To present the relative prevalence, demographic and clinical characteristics of PR.
We conducted a retrospective review of records of consecutive patients attending two dermatology clinics in Kaduna, North-West Nigeria between September 2001 and November 2021.
Of 39,037 patients, 922 (2.4%) presented with PR: Median age was 15 years (range 3 months to 63 years) and 24% < 10 years, 60% < 18 years, 87% < 30% years. 62% were female. In patients < 20 years, males were significantly more in number than females (69.6% vs. 60.9%, P = 0.007) while in those >20 years, females were more in number (39.1% vs. 30.4%, P = 0.007). The mean duration of disease at presentation was 14 days (range 1 - 240 days). Majority (60%) were seen during the rainy season. A herald patch was present in 67.8%, usually occurring 7 days before the main rash. The trunk was affected by the main rash in 94% while the neck and face were affected in 19.2% and 23.6%, respectively. Itching was reported by 80%. The classic disease constituted 80.2%. Oral involvement was rare.
Pityriasis rosea is a common disease in Kaduna. It mostly affects children, adolescents and young adults. Clinical presentation is typical in the majority of patients. Rarely an atypical disease occurs. Oral involvement was rare.
玫瑰糠疹（PR）是一种急性、自限性的丘疹鳞屑性皮肤病，主要影响儿童和年轻人。玫瑰糠疹在西非似乎更为常见。关于尼日利亚北部的玫瑰糠疹报告很少。
介绍 PR 的相对流行率、人口统计学和临床特征。
我们对 2001 年 9 月至 2021 年 11 月期间在尼日利亚西北部卡杜纳的两家皮肤科诊所连续就诊的患者进行了回顾性研究。
在 39037 名患者中，922 名（2.4%）患有 PR：中位年龄为 15 岁（范围 3 个月至 63 岁），24%<10 岁，60%<18 岁，87%<30 岁。62%为女性。在<20 岁的患者中，男性明显多于女性（69.6%比 60.9%，P=0.007），而在>20 岁的患者中，女性则更多（39.1%比 30.4%，P=0.007）。就诊时疾病的平均持续时间为 14 天（范围 1-240 天）。大多数（60%）发生在雨季。67.8%存在先驱斑，通常在主要皮疹出现前 7 天发生。主要皮疹主要影响躯干，而颈部和面部的受累率分别为 19.2%和 23.6%。80%的患者报告有瘙痒。经典疾病占 80.2%。口腔受累罕见。
玫瑰糠疹在卡杜纳是一种常见疾病。它主要影响儿童、青少年和年轻人。大多数患者的临床表现是典型的。很少出现非典型疾病。口腔受累罕见。
