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，主要分布于前额和顶部。患处呈红色，伴有鳞屑和毛发脱落，但无疤痕。真菌检测结果为阴性。
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 可能来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明确。我们的目标是研究 pityriasis amiantacea 患者的特征，以便更好地指导治疗。我们回顾了 63 名患有 seborrheic dermatitis 的儿童，发现其中 7 例合并 pityriasis amiantacea，且大多数为女孩。平均随访时间约为 20.4 个月，患者平均年龄为 5.9 岁，其中女孩 5 人，平均年龄 9 岁。所有患者均接受局部酮康唑治疗并取得成功。
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) 影响头皮，出现光亮的厚鳞片，鳞片包围并束缚一簇毛发。病变可局限于局部，也可遍及整个头皮。因反复去除附着在鳞屑上的毛发，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
* 含尿素的角质层分离剂可能有助于去除厚垢。
#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