Pityriasis amiantacea
relevance score : -100.0%
References14歳の少年が、主に前頭部と頭部上部に黄褐色の分厚い鱗屑を呈して来院しました。患部は赤く鱗状で、脱毛していましたが、瘢痕は認められませんでした。真菌検査は陰性でした。
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 は、seborrheic dermatitis のように主に頭皮に影響を与える皮膚疾患に起因する可能性がありますが、発症メカニズムは完全には解明されていません。私たちの目的は、Pityriasis amiantacea 患者の臨床パターンを解析し、治療効果を評価することです。seborrheic dermatitis の小児 63 人を調査した結果、Pityriasis amiantacea 症例が 7 件見つかり、そのほとんどが女児でした。これらの患者を平均約 20.4 か月間追跡したところ、平均年齢は約 5.9 歳で、うち 5 人は平均年齢 9 歳の少女でした。すべての患者は局所 ketoconazole による治療で効果が認められました。
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.
Pityriasis amiantacea では、光沢のある厚い鱗屑が頭皮に現れ、鱗が毛束を取り囲んで束ねているように見えます。この症状は局所的に出ることもあれば、頭皮全体に広がることもあります。鱗屑に付着した毛が何度も抜け落ちることで、一時的な脱毛や瘢痕性脱毛が起こることがあります。稀な疾患です。
○ 治療 ― OTC医薬品
*尿素を含む角質溶解剤は、厚い鱗屑の治療に役立つ場合があります。
#40% urea cream
*フケ防止シャンプーを毎日使用してください。
#Ciclopirox shampoo
#Ketoconazole shampoo
#Fluocinolone shampoo
#Pyrithione zinc shampoo
#Selenium sulfide shampoo
※OTCステロイド外用剤は頭皮のかゆみのある部分にのみ塗布してください。頭皮にステロイドを塗りすぎると毛嚢炎を引き起こす可能性があるので注意してください。
#Hydrocortisone cream