ABSTRACT
La enfermedad de Darier (ED) descrita por Darier y White en 1889, es un trastorno autosómico dominante de la queratinización, causada por una mutación del gen ATP2A2, localizado en el cromosoma 12 que codifica para la bomba de calcio ATP-asa de tipo 2 del retículo sarco-endoplásmico (SERCA-2), que conduce a una queratinización anormal (disqueratosis) y pérdida de la adhesión intercelular de los queratinocitos (acantolisis), con la consecuente formación de hendiduras suprabasales. Se caracteriza por alteraciones de la queratinización de la epidermis, uñas y mucosas. Presentamos el caso de un paciente masculino de 21 años, con lesiones cutáneas e histológicas características de (ED), quien realizó tratamiento con acitretina oral a una dosis de 30 mg al día, con respuesta favorable. Se plantea una alternativa terapéutica con retinoides orales para las lesiones crónicas y resistentes.
Darier's disease (DD) described by Darier and White in 1889 is an autosomic dominant disorder of keratinization, caused by a mutation of gen ATP2A2, located in the chromosome 12 encoding for calcium ATPase pump of sarcoplasmic reticulum type 2 (SERCA-2) leading to abnormal keratinization (dyskeratosis) and loss of intercellular adhesion of keratinocytes (acantholysis), with the consequent formation of suprabasal clefts. Characterized for abnormal keratinization in the epidermis, nails and mucosae. We present the case of a 21-year-old, male patient, with clinically and histologically confirmed (DD) treated with oral acitretin 30 mg for day with good response. We recommend an optional therapeutic treatment for chronic, itchy, recalcitrant lesions with oral retinoids.
ABSTRACT
La enfermedad de Darier (ED) descrita por Darier y White en 1889, es un trastorno autosómico dominante de la queratinización, causada por una mutación del gen ATP2A2, localizado en el cromosoma 12 que codifica para la bomba de calcio ATP-asa de tipo 2 del retículo sarco-endoplásmico (SERCA-2), que conduce a una queratinización anormal (disqueratosis) y pérdida de la adhesión intercelular de los queratinocitos (acantolisis), con la consecuente formación de hendiduras suprabasales. Se caracteriza por alteraciones de la queratinización de la epidermis, uñas y mucosas. Presentamos el caso de un paciente masculino de 21 años, con lesiones cutáneas e histológicas características de (ED), quien realizó tratamiento con acitretina oral a una dosis de 30 mg al día, con respuesta favorable. Se plantea una alternativa terapéutica con retinoides orales para las lesiones crónicas y resistentes.(AU)
Dariers disease (DD) described by Darier and White in 1889 is an autosomic dominant disorder of keratinization, caused by a mutation of gen ATP2A2, located in the chromosome 12 encoding for calcium ATPase pump of sarcoplasmic reticulum type 2 (SERCA-2) leading to abnormal keratinization (dyskeratosis) and loss of intercellular adhesion of keratinocytes (acantholysis), with the consequent formation of suprabasal clefts. Characterized for abnormal keratinization in the epidermis, nails and mucosae. We present the case of a 21-year-old, male patient, with clinically and histologically confirmed (DD) treated with oral acitretin 30 mg for day with good response. We recommend an optional therapeutic treatment for chronic, itchy, recalcitrant lesions with oral retinoids.(AU)
ABSTRACT
Lucio's phenomenon (LP) occurs in patients with Lucio leprosy (LuL). Some interpret the cutaneous lesions and their histopathology as a thrombotic/occlusive condition, while others consider it leukocytoclastic vasculitis. The clinical similarities between the cutaneous manifestations of LP and antiphospholipid syndrome (APS) led us to investigate the relationship between these two pathological conditions. We studied the clinical, laboratory and histopathologic aspects of LuL and LP in one patient and compare these results to APS. The examination of antiphospholipid antibodies showed positive anticardiolipin (aCL) and lupus anticoagulant (LAC). The histopathological slides of cutaneous biopsies were stained by hematoxylin-eosin and Fite-Faraco. They showed the typical features of LuL, as well as thrombi, endothelial proliferation, vessel wall thickening and obliteration of the lumen. Leukocytoclastic vasculitis was not found. The clinical pattern of LuL in our case is identical to that described by Lucio and Latapi. The necrotic lesions of LP in our patient resembled APS. This suggests that LP could be considered APS secondary to LuL. Multidrug treatment for multibacillary patients (MDT-MP) was successful, with no need for thalidomide or systemic corticosteroids.
