Pityriasis amiantacea - 石棉状糠疹
relevance score : -100.0%
References一名 14 歲的男孩前來就診，頭皮上出現厚厚的黃棕色鱗屑，主要分布於前額和頭頂。患處呈紅色，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。但我們尚未完全了解其發病機制。研究的目標是分析 pityriasis amiantacea 患者的特徵，以探討如何更有效地治療。我們回顧了 63 名患有 seborrheic dermatitis 的兒童，發現其中有 7 例 pityriasis amiantacea，且大多為女孩。平均追蹤時間約 20.4 個月，患者平均年齡為 5.9 歲，其中女孩 5 人，平均年齡 9 歲。所有患者皆接受局部酮康唑治療，且治療成功。
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.
石棉状糠疹 (pityriasis amiantacea) 影響頭皮，表現為光澤的厚鱗片，鱗片環繞並束縛一簇毛髮。此情況可局部發生，也可遍及整個頭皮。因反覆去除附著於鱗屑的毛髮，可能出現暫時性脫髮或疤痕性脫髮。此病較為罕見。
○ 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，在頭皮上使用過多的類固醇可能會導致毛囊炎。
#Hydrocortisone cream