Pityriasis amiantacea - 石棉状糠疹
References
一名 14 岁男孩进来，头皮上有厚厚的黄棕色鳞片，主要分布在前额和顶部。患处呈红色，有鳞屑，有毛发脱落，但无疤痕。真菌检测呈阴性。
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 可能来自任何主要影响头皮的皮肤病，例如 seborrheic dermatitis 。但我们并不完全确定它是如何开始的。我们的目标是研究 pityriasis amiantacea 患者的模式，以了解治疗如何更好地发挥作用。我们检查了 63 名患有 seborrheic dermatitis 的孩子，发现了 7 例 pityriasis amiantacea 病例，其中大多数是女孩。我们平均跟踪他们约 20. 4 个月，发现他们的年龄约为 5. 9 岁。其中，女孩5人，平均年龄9岁。所有患者均成功接受局部酮康唑治疗。
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，表现为闪亮的厚鳞片。鳞片包围并束缚一簇毛发。这种情况可以是局部的，也可以覆盖整个头皮。由于反复去除鳞屑上附着的毛发，可能会出现暂时性脱发和疤痕性脱发。这是一种罕见的疾病。
○ 治疗 - 非处方药
*含有尿素的角质层分离剂可能有助于治疗厚垢。
#40% urea cream
*每天使用去屑洗发水。
#Ciclopirox shampoo
#Ketoconazole shampoo
#Fluocinolone shampoo
#Pyrithione zinc shampoo
#Selenium sulfide shampoo
*仅在头皮发痒的部位使用外用非处方类固醇。请注意，在头皮上使用过多的类固醇可能会导致毛囊炎。
#Hydrocortisone cream