Table of Content


Summer 2016, Vol. 24 No. 2

Hong Kong J. Dermatol. Venereol. (2016) 24, 65-69

Original Article

Pigmented purpuric dermatosis in Singapore: a clinic-epidemiological characterisation


MQM Liau 廖美琪, V Long 龍詩歡, SS Yang 楊時耀, KB Tan 陳光明, DCW Aw 胡政偉


Background: Pigmented purpuric dermatoses (PPD) are a group of chronic and relapsing disorders characterised by petechiae and pigmented macules. To date, very few studies have evaluated the clinico-epidemiology of this disorder. Aim: To describe the local epidemiology of patients with PPD in a tertiary dermatological unit in the National University Hospital, Singapore over a 5-year period. Methods: A retrospective analysis of all biopsy-confirmed PPD cases diagnosed and treated in NUH in the period 2009-2014, was performed. Patient demographics, clinical characteristics, comorbidities and treatment outcomes were noted. Results: A total of 48 patients were identified. PPD tends to affect older adults and has a slight female preponderance in our population. The lower limbs were the most common site of involvement. There were no significant comorbidities identified in association with our patients with PPD. The rates of improvement were similar for treatment and non-treatment groups. Limitations: Retrospective review, small sample size, selection bias from inclusion of only biopsy-proven cases. Conclusion: Most patients were asymptomatic and those who experience symptoms may benefit from topical corticosteroid therapy. As spontaneous improvement is often observed, treatment is not always necessary.


Keywords: Corticosteroids, pigmented purpuric dermatosis (PPD), topical corticosteroids

關鍵詞: 皮質類固醇、色素性紫癜性皮膚病、外用皮質類固醇