Pityriasis amiantacea - 石棉状糠疹
relevance score : -100.0%
References一名 14 岁的男孩前来就诊，头皮出现厚厚的黄棕色鳞屑，主要分布于前额和头顶部。患处呈红色，伴有鳞屑和毛发脱落，但无瘢痕。真菌检查结果为阴性。
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 可能源于任何主要累及头皮的皮肤病，例如 seborrheic dermatitis，但其发病机制尚不完全清楚。我们的目标是分析 pityriasis amiantacea 患者的特征，以探讨更有效的治疗方案。我们回顾性研究了 63 名患有 seborrheic dermatitis 的儿童，发现其中 7 例出现 pityriasis amiantacea，且大多数为女性（5 名女孩，平均年龄 9 岁）。患者平均随访 20.4 个月，平均年龄为 5.9 岁。所有患者均接受局部酮康唑(Ketoconazole)治疗，疗效均良好。
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) 影响头皮，表现为光亮的厚鳞片。鳞片环绕并束缚一簇毛发，可局部出现，也可遍布整个头皮。因反复去除鳞屑上附着的毛发，可能出现暂时性脱发或疤痕性脱发。这是一种罕见疾病。
○ 治疗 - 非处方药
* 含尿素的角质软化剂可能有助于去除厚垢。
#40% urea cream
* 每日使用去屑洗发水。
#Ciclopirox shampoo
#Ketoconazole shampoo
#Fluocinolone shampoo
#Pyrithione zinc shampoo
#Selenium sulfide shampoo
* 仅在头皮瘙痒的部位使用外用非处方类固醇。请注意，过量使用类固醇可能导致毛囊炎。
#Hydrocortisone cream