Pityriasis amiantacea - 石棉状糠疹
relevance score : -100.0%
References一名 14 歲的男孩前來就診，頭皮呈現厚厚的黃棕色鱗屑，主要分布於前額和頭頂。患處呈紅斑，伴有鱗屑，毛髮脫落，且無疤痕。真菌檢測結果為陰性。
A 14-year-old male patient presented with focal masses of thick, adherent, plate like, yellow-brown scales, attached to the hair shafts, predominantly affecting the fronto-parietal area and vertex of the scalp. The underlying scalp had thick, erythematous plaques with fine, non greasy, silvery-white scaling with noncicatricial alopecia. Potassium hydroxide examination of scales and hair and culture for fungus was negative.
A 14-year-old male patient presented with focal masses of thick, adherent, plate like, yellow-brown scales, attached to the hair shafts, predominantly affecting the fronto-parietal area and vertex of the scalp. The underlying scalp had thick, erythematous plaques with fine, non greasy, silvery-white scaling with noncicatricial alopecia. Potassium hydroxide examination of scales and hair and culture for fungus was negative.
Pityriasis amiantacea 可能源於任何主要影響頭皮的皮膚病，例如 seborrheic dermatitis。但我們並不完全確定它的起始機制。我們的目標是研究 pityriasis amiantacea 患者的模式，以了解如何更好地發揮治療效果。我們檢查了 63 名患有 seborrheic dermatitis 的兒童，發現其中有 7 例 pityriasis amiantacea 病例，且大多為女孩。我們平均追蹤他們約 20.4 個月，患者年齡平均約 5.9 歲。其中，女孩 5 人，平均年齡 9 歲。所有患者均成功接受局部酮康唑 (ketoconazole) 治療。
The disease may be secondary to any skin condition that primarily affects the scalp, including seborrheic dermatitis. Its pathogenesis remains uncertain. We aim to analyze the epidemiological and clinical profiles of patients with pityriasis amiantacea to better understand treatment responses. We identified seven cases of pityriasis amiantacea and a female predominance in a sample of 63 pediatric patients with seborrheic dermatitis followed for an average of 20.4 months. We reported a mean age of 5.9 years. Five patients were female, with a mean age of 9 years. All patients were successfully treated with topic ketoconazole.
The disease may be secondary to any skin condition that primarily affects the scalp, including seborrheic dermatitis. Its pathogenesis remains uncertain. We aim to analyze the epidemiological and clinical profiles of patients with pityriasis amiantacea to better understand treatment responses. We identified seven cases of pityriasis amiantacea and a female predominance in a sample of 63 pediatric patients with seborrheic dermatitis followed for an average of 20.4 months. We reported a mean age of 5.9 years. Five patients were female, with a mean age of 9 years. All patients were successfully treated with topic ketoconazole.
石棉狀糠疹 (Pityriasis amiantacea) 影響頭皮，表現為光亮的厚鱗片，鱗片會包圍並束縛一簇毛髮。此狀況可局部出現，也可覆蓋整個頭皮。因反覆去除鱡屑上附著的毛髮，可能導致暫時性脫髮或疤痕性脫髮。此疾病相對罕見。
○ 治療 – 非處方藥
* 含尿素的角質層分離劑可能有助於去除厚垢。
#40% urea cream
* 每天使用去屑洗髮精。
#Ciclopirox shampoo
#Ketoconazole shampoo
#Fluocinolone shampoo
#Pyrithione zinc shampoo
#Selenium sulfide shampoo
* 僅在頭皮發癢的部位使用外用非處方類固醇。請注意，過量使用類固醇可能會引起毛囊炎。
#Hydrocortisone cream