Granular Parakeratosis
Granular parakeratosis is a rare entity that results from an acquired disorder of keratinization. Clinically presents as dark erythematous plaques, occasionally pruritic, that usually involve the axilla and other intertriginous areas. The pathology is characteristic and consists of thickening of the...
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Published in | Actas dermo-sifiliográficas Vol. 98; no. 5; pp. 355 - 357 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English Spanish |
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Spain
01.06.2007
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Abstract | Granular parakeratosis is a rare entity that results from an acquired disorder of keratinization. Clinically presents as dark erythematous plaques, occasionally pruritic, that usually involve the axilla and other intertriginous areas. The pathology is characteristic and consists of thickening of the stratum corneum with compact parakeratosis and retention of keratohyaline granules, whereas the stratum granulosum is preserved. The etiology is unknown although some factors such as irritating physical or chemical agents have been implicated. Treatment response is variable. We report a new case in a 50-year-old woman with brownish and hyperkeratotic plaques on both axillae, of two years duration, with a compatible pathology that showed a favorable response to tacalcitol.
La paraqueratosis granular es una entidad poco frecuente que se caracteriza por ser una alteración adquirida de la queratinización. Clínicamente se presenta como placas eritematoparduscas, ocasionalmente pru-riginosas, que clásicamente aparecen en la axila y áreas intertriginosas. La histología es característica, donde se observa un engrosamiento de la capa córnea con una paraqueratosis compacta y persistencia de gránulos de que-ratohialina, mientras que el estrato granuloso se encuentra preservado. La etiología es desconocida, se postula la acción de factores irritantes físicos o químicos. La respuesta al tratamiento es variable. Presentamos un nuevo caso en una mujer de 50 años, con placas marronáceas abollonadas e hiperqueratósicas en ambas axilas, de dos años de evolución y con histología compatible, que presentó una buena respuesta al tratamiento con tacalcitol. |
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AbstractList | Granular parakeratosis is a rare entity that results from an acquired disorder of keratinization. Clinically presents as dark erythematous plaques, occasionally pruritic, that usually involve the axilla and other intertriginous areas. The pathology is characteristic and consists of thickening of the stratum corneum with compact parakeratosis and retention of keratohyaline granules, whereas the stratum granulosum is preserved. The etiology is unknown although some factors such as irritating physical or chemical agents have been implicated. Treatment response is variable. We report a new case in a 50-year-old woman with brownish and hyperkeratotic plaques on both axillae, of two years duration, with a compatible pathology that showed a favorable response to tacalcitol. Granular parakeratosis is a rare entity that results from an acquired disorder of keratinization. Clinically presents as dark erythematous plaques, occasionally pruritic, that usually involve the axilla and other intertriginous areas. The pathology is characteristic and consists of thickening of the stratum corneum with compact parakeratosis and retention of keratohyaline granules, whereas the stratum granulosum is preserved. The etiology is unknown although some factors such as irritating physical or chemical agents have been implicated. Treatment response is variable. We report a new case in a 50-year-old woman with brownish and hyperkeratotic plaques on both axillae, of two years duration, with a compatible pathology that showed a favorable response to tacalcitol. La paraqueratosis granular es una entidad poco frecuente que se caracteriza por ser una alteración adquirida de la queratinización. Clínicamente se presenta como placas eritematoparduscas, ocasionalmente pru-riginosas, que clásicamente aparecen en la axila y áreas intertriginosas. La histología es característica, donde se observa un engrosamiento de la capa córnea con una paraqueratosis compacta y persistencia de gránulos de que-ratohialina, mientras que el estrato granuloso se encuentra preservado. La etiología es desconocida, se postula la acción de factores irritantes físicos o químicos. La respuesta al tratamiento es variable. Presentamos un nuevo caso en una mujer de 50 años, con placas marronáceas abollonadas e hiperqueratósicas en ambas axilas, de dos años de evolución y con histología compatible, que presentó una buena respuesta al tratamiento con tacalcitol. |
Author | Polo-Rodríguez, I. Rodríguez-Peralto, J.L. Vanaclocha-Sebastián, F. Vallés-Blanco, L. Rosales-Trujillo, B. Ortiz de Frutos, F.J. González de Arriba, M. |
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References_xml | – volume: 147 start-page: 1003 year: 2002 end-page: 1006 ident: bib8 article-title: Granular parakeratosis: four pediatric cases publication-title: J Am Acad Dermatol contributor: fullname: Fanti – volume: 42 start-page: 382 year: 2003 end-page: 383 ident: bib10 article-title: Axillary intertriginous granular parakeratosis responsive to topical calcipotriene and ammonium lactate publication-title: Int J Dermatol contributor: fullname: Palmer – volume: 33 start-page: 373 year: 1995 end-page: 375 ident: bib4 article-title: Axillary granular parakeratosis publication-title: J Am Acad Dermatol contributor: fullname: Mehregan – volume: 24 start-page: 541 year: 1991 end-page: 544 ident: bib1 article-title: Axillary granular parakeratosis publication-title: J Am Acad Dermatol contributor: fullname: Tschen – volume: 39 start-page: 495 year: 1998 end-page: 496 ident: bib5 article-title: Intertriginous granular parakeratosis publication-title: J Am Acad Dermatol contributor: fullname: Meheregan – volume: 26 start-page: 39 year: 1999 ident: bib6 article-title: Granular parakeratosis - a unique acquired disorder of keratinization publication-title: J Cutan Pathol contributor: fullname: Rutten – volume: 30 start-page: 332 year: 2003 end-page: 335 ident: bib7 article-title: Granular parakeratosis: a case report and literature review publication-title: J Cutan Pathol contributor: fullname: Sangueza – volume: 40 start-page: 439 year: 2001 end-page: 441 ident: bib11 article-title: Axillary granular parakeratosis publication-title: Int J Dermatol contributor: fullname: Sangueza – volume: 37 start-page: 789 year: 1997 end-page: 790 ident: bib9 article-title: Axillary granular parakeratosis: response to isotretinoin publication-title: J Am Acad Dermatol contributor: fullname: Webster – volume: 20 start-page: 215 year: 2003 end-page: 220 ident: bib3 article-title: Granular parakeratosis in children: case report and review of the literature publication-title: Pediatr Dermatol contributor: fullname: Mota de Avelar Alchorne – volume: 20 start-page: 215 issue: 3 year: 2003 ident: 10.1016/S1578-2190(07)70461-4_bib3 article-title: Granular parakeratosis in children: case report and review of the literature publication-title: Pediatr Dermatol doi: 10.1046/j.1525-1470.2003.20306.x contributor: fullname: Pimentel – volume: 42 start-page: 382 year: 2003 ident: 10.1016/S1578-2190(07)70461-4_bib10 article-title: Axillary intertriginous granular parakeratosis responsive to topical calcipotriene and ammonium lactate publication-title: Int J Dermatol doi: 10.1046/j.1365-4362.2003.01722.x contributor: fullname: Contreras – volume: 33 start-page: 373 year: 1995 ident: 10.1016/S1578-2190(07)70461-4_bib4 article-title: Axillary granular parakeratosis publication-title: J Am Acad Dermatol doi: 10.1016/0190-9622(95)91437-4 contributor: fullname: Mehregan – volume: 26 start-page: 39 year: 1999 ident: 10.1016/S1578-2190(07)70461-4_bib6 article-title: Granular parakeratosis - a unique acquired disorder of keratinization publication-title: J Cutan Pathol doi: 10.1111/j.1600-0560.1999.tb01855.x contributor: fullname: Metze – volume: 147 start-page: 1003 year: 2002 ident: 10.1016/S1578-2190(07)70461-4_bib8 article-title: Granular parakeratosis: four pediatric cases publication-title: J Am Acad Dermatol contributor: fullname: Patrizi – ident: 10.1016/S1578-2190(07)70461-4_bib2 – volume: 40 start-page: 439 year: 2001 ident: 10.1016/S1578-2190(07)70461-4_bib11 article-title: Axillary granular parakeratosis publication-title: Int J Dermatol doi: 10.1046/j.1365-4362.2001.01098.x contributor: fullname: Barnes – volume: 24 start-page: 541 year: 1991 ident: 10.1016/S1578-2190(07)70461-4_bib1 article-title: Axillary granular parakeratosis publication-title: J Am Acad Dermatol doi: 10.1016/0190-9622(91)70078-G contributor: fullname: Northcutt – volume: 39 start-page: 495 year: 1998 ident: 10.1016/S1578-2190(07)70461-4_bib5 article-title: Intertriginous granular parakeratosis publication-title: J Am Acad Dermatol doi: 10.1016/S0190-9622(98)70333-0 contributor: fullname: Mehregan – volume: 30 start-page: 332 year: 2003 ident: 10.1016/S1578-2190(07)70461-4_bib7 article-title: Granular parakeratosis: a case report and literature review publication-title: J Cutan Pathol doi: 10.1034/j.1600-0560.2003.00066.x contributor: fullname: Wallace – volume: 37 start-page: 789 year: 1997 ident: 10.1016/S1578-2190(07)70461-4_bib9 article-title: Axillary granular parakeratosis: response to isotretinoin publication-title: J Am Acad Dermatol doi: 10.1016/S0190-9622(97)70119-1 contributor: fullname: Webster |
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SubjectTerms | Axilla Female granular Humans Middle Aged parakeratosis Parakeratosis - drug therapy Parakeratosis - pathology paraqueratosis tacalcitol |
Title | Granular Parakeratosis |
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