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 ar. Test for svamp 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. Den præcise årsag er dog stadig ukendt. Vores mål er at undersøge mønstrene blandt 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. Vi fulgte dem i gennemsnit i cirka 20,4 måneder og fandt, at de i gennemsnit var 5,9 år gamle. 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 på hovedbunden. Skællene omslutter og binder hårtotter ned. Tilstanden kan være lokaliseret eller dække hele hovedbunden. Midlertidig alopeci og ardannelse kan forekomme på grund 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 reducere den tykke skæl.
#40% urea cream
*Brug shampoo mod skæl 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 påføring af for meget steroid i hovedbunden kan forårsage folliculitis.
#Hydrocortisone cream