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Rev. chil. dermatol ; 34(1): 32-35, 2018. ilus
Article in Spanish | LILACS | ID: biblio-965818

ABSTRACT

El Penfigoide nodular es una variante clínica poco frecuente de penfigoide buloso. Corresponde a una dermatosis ampollar subepidérmica, crónica, autoinmune, caracterizada por auto anticuerpos contra antígenos específicos de hemidesmosomas en la unión dermo-epidérmica. Su incidencia es desconocida. La etiopatogenia aún no es entendida del todo. Se presenta clínicamente como una superposición de características de pénfigo buloso y prurigo nodular. El diagnóstico se basa en hallazgos clínicos e inmunopatológicos. La histopatología con inmunofluorescencia directa es el gold standard para el diagnóstico. El manejo es difícil, tiene mala respuesta a corticoides potentes locales, siendo necesario el uso de corticoides sistémicos y diferentes inmunosupresores solos o combinados junto a antihistamínicos para el manejo de prurito intenso. Se presenta un caso de pénfigo nodular, donde destaca su buena respuesta a terapia combinada con metotrexato y luz UVB de banda angosta.


Pemphigoid Nodularis is a rare clinical variant of bullous pemphigoid. It is considered an autoimmune, chronic, subepidermal blistering dermatosis, characterized by antibodies against hemidesmosome-specific antigens at the dermo-epidermal junction. Its incidence is unknown and its etiopathogenetic not fully understood. Clinically, it presents with overlapping features of bullous pemphigoid and prurigo nodularis. The diagnosis is based on clinical and immunopathological findings, being the histopathological study with immunofluorescence the gold standard. The management is difficult; since it has a poor response to local potent corticosteroids, requiring the use of systemic corticosteroids and different immunosuppressants alone or combined with antihistamines for the intense pruritus. We present a case of nodularis pemphigoid, highlighting the good response to the combination of methotrexate and phototherapy with narrow band UVB.


Subject(s)
Humans , Female , Aged , Ultraviolet Therapy/methods , Pemphigoid, Bullous/therapy , Biopsy , Enzyme-Linked Immunosorbent Assay , Methotrexate/therapeutic use , Pemphigoid, Bullous/pathology , Combined Modality Therapy
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