Pityriasis amiantacea
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ReferencesEn 14‑årig dreng kom ind med tykke, gulbrune skæl i hovedbunden, hovedsageligt foran og på toppen. De berørte områder var røde og skællende med hårtab, men ingen ardannelse. Svampetest var negativ.
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 kan opstå som følge af enhver hudsygdom, der primært påvirker hovedbunden, fx seborrheic dermatitis. Hvorfor tilstanden udvikler sig, er dog stadig usikkert. Vores mål var at undersøge mønstrene hos patienter med pityriasis amiantacea for at forstå, hvilke behandlinger der virker bedst. Vi gennemgik 63 børn med seborrheic dermatitis og identificerede syv tilfælde af pityriasis amiantacea, hovedsageligt hos piger. Patienterne blev fulgt i gennemsnitligt 20,4 måned og var i alderen omkring 5,9 år. Blandt dem var fem piger med en gennemsnitsalder på 9 år. Alle patienter blev med succes behandlet med ketoconazol.
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 viser sig som skinnende, tykke skæl, som omslutter og binder hårtotter ned. Tilstanden kan være lokaliseret eller omfatte hele hovedbunden. Midlertidig alopeci og ardannelse kan forekomme som følge af gentagen fjernelse af hår, der er fastgjort til skællen. Det er en sjælden sygdom.
○ Behandling ― OTC-lægemidler
*Keratolytiske midler, der indeholder urinstof, kan hjælpe med at nedbryde den tykke skæl.
#40% urea cream
*Brug en skældæmpende shampoo dagligt.
#Ciclopirox shampoo
#Ketoconazole shampoo
#Fluocinolone shampoo
#Pyrithione zinc shampoo
#Selenium sulfide shampoo
*Anvend kun topiske OTC-steroider på de kløende områder af hovedbunden. Vær opmærksom på, at for meget steroid kan forårsage folliculitis.
#Hydrocortisone cream