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1.
Rev. chil. infectol ; 35(3): 266-275, 2018. tab, graf
Article in Spanish | LILACS | ID: biblio-959441

ABSTRACT

Resumen Introducción: El loxoscelismo es una patología frecuente en nuestro medio con un amplio espectro de presentaciones y diagnósticos diferenciales, con complicaciones potencialmente graves, e incluso con riesgo de muerte. A la fecha no existe un tratamiento estándar para estos pacientes. Objetivo: Describir las manifestaciones clínicas, principales complicaciones, manejo terapéutico y evolución de pacientes internados por loxoscelismo en un hospital terciario en Chile. Pacientes y Método: Se analizaron todos los pacientes consultantes e internados por loxoscelismo en el Hospital Clínico de la Pontificia Universidad Católica de Chile entre los años 2014 y 2017, evaluados en interconsulta por Dermatología. Revisión de los registros clínicos incluyendo semiología, imágenes, informes de laboratorio y tratamientos efectuados. Resultados: Se registraron 17 casos de loxoscelismo de manejo hospitalario, cuya presentación responde al patrón epidemiológico nacional. La mayoría de los casos fue manejada con antimicrobianos, corticosteroides sistémicos, antihistamínicos y dapsona. De ellos, 11,8% correspondieron a loxoscelismo cutáneo visceral, manejados exitosamente con medidas de soporte, corticosteroides sistémicos y antihistamínicos. El 59% presentó resolución de las lesiones al mes de tratamiento, con cicatriz residual leve o hiperpigmentación postinflamatoria, sin mortalidad en nuestra serie. Discusión: La mayoría de los casos de loxoscelismo cutáneo presentó excelente respuesta y rápida resolución del cuadro tras el tratamiento asociado de corticosteroides sistémicos, antimicrobianos y dapsona, sugiriendo que el uso de estas terapias podría detener la progresión de la necrosis cutánea y prevenir las complicaciones asociadas al loxoscelismo.


Background: Loxoscelism is a common pathology in our environment with a broad spectrum of differential diagnoses and presentations, with potentially serious complications, even to the point of death. To date, there is no standard treatment for these patients. Aim: To describe the clinical manifestations, main complications, therapeutic management, and evolution of loxoscelism in an inpatient setting from a tertiary hospital in Chile. Methods: All patients consulting and hospitalized in the hospital of the Pontificia Universidad Católica de Chile with diagnosis of loxoscelism between 2014 to 2017 and evaluated by dermatologist were included. Review of clinical files, including symptoms, images, laboratory parameters and treatment. Results: We evaluated seventeen inpatient with loxoscelism, whose presentation responds to the national epidemiological pattern. Most cases were managed with antibiotics, systemic corticosteroids, antihistamines, and dapsone. From these, 11.8% corresponded to viscerocutaneous loxoscelism, successfully managed with supportive measures, systemic corticosteroids and antihistamines. Fifty-nine percent healed their cutaneous lesions after one month of treatment, with slight residual scarring or post inflammatory hyperpigmentation, without associated mortality in our series. Discussion: Most cases of cutaneous loxoscelism presented excellent response and rapid resolution of the disease after combined therapy with systemic corticosteroids, antibiotics and dapsone, suggesting that the use of these therapies could stop the progression of cutaneous necrosis and prevent complications associated with loxoscelism.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Middle Aged , Young Adult , Spider Bites/complications , Skin Diseases/etiology , Spider Venoms/adverse effects , Spider Bites/diagnosis , Spider Bites/drug therapy , Seasons , Skin Diseases/diagnosis , Skin Diseases/drug therapy , Viscera/pathology , Retrospective Studies
2.
Rev. chil. dermatol ; 34(3): 99-101, 2018. ilus
Article in Spanish | LILACS | ID: biblio-995081

ABSTRACT

El patrón en arcoiris ha sido un tema controvertido, dado que en un principio se planteó como un patrón dermatoscópico específico asociado al diagnóstico de Sarcoma de Kaposi. Sin embargo, esta asociación ha sido cuestionada por diversos reportes que han evidenciado la presencia de este patrón dermatoscópico en otro tipo de lesiones, tales como, otros tumores vaculares, cicatriz hipertrófica, angioqueratoma, dermatitis por estasis, pseudo-Kaposi (acroangiodermatitis), melanoma, liquen plano, dermatofibroma hemosiderótico, entre otros. Se ha propuesto que este efecto se genera por la absorción, difracción y difusión de la luz polarizada y su interferencia con diferentes componentes vasculares y fibrosos de la dermis más que por algún hallazgo histopatológico específico. Presentamos el primer caso con registro fotográfico de dermatofibroma hemosiderótico con presencia de un 'patrón irisado' en la dermatoscopía.


The dermoscopic 'rainbow pattern' has been a controversial issue; it was initially proposed as a specific dermatoscopic pattern associated with Kaposi's Sarcoma. However, this has been questioned by several reports that have shown the presence of this dermoscopic pattern in a wide variety of lesions such as other vascular tumors, hypertrophic scars, angiokeratoma, stasis dermatitis, pseudo-Kaposi acroandgiodermatitis), melanoma, lichen planus, and hemosiderotic dermatofibroma, among others. It has been proposed that this effect is generated by the absorption, diffraction and diffusion of polarized light and its interference with different vascular and fibrous components of the dermis, rather than being caused by a specific histopathologic finding. We present the first photographically recorded case of hemosiderotic dermatofibroma, characterized by the presence of a rainbow pattern in dermoscopy.


Subject(s)
Humans , Male , Adult , Skin Neoplasms/pathology , Histiocytoma, Benign Fibrous/pathology , Dermoscopy , Hemosiderosis/pathology , Skin Neoplasms/diagnosis , Histiocytoma, Benign Fibrous/diagnosis , Hemosiderosis
3.
Rev. chil. dermatol ; 34(2): 72-75, 2018. ilus
Article in Spanish | LILACS | ID: biblio-994884

ABSTRACT

El pilomatrixoma es una neoplasia anexial benigna, que habitualmente se presenta como pápula o nódulo subcutáneo, de crecimiento lento y asintomático. Es más frecuente en niños. El diagnóstico se basa en hallazgos clínicos, y la ecografía es útil como examen complementario. El tratamiento es su resección quirúrgica. Se presenta un caso infrecuente de pilomatrixoma quístico con verruga vulgar intraquística en un paciente adulto.


Pilomatricoma is a benign adnexal tumor, usually presenting as a slow growing asymptomatic subcutaneous papule or nodule. It is more common in children. The diagnosis is based on clinical findings, and ultrasound is useful as a complementary workup tool. Its treatment is surgical excision. We present a rare case of a cystic pilomatricoma with an intracystic verruca vulgaris in an adult patient.


Subject(s)
Humans , Male , Middle Aged , Skin Neoplasms/pathology , Warts/pathology , Pilomatrixoma/pathology , Hair Diseases/pathology , Skin Neoplasms/surgery , Skin Neoplasms/diagnosis , Pilomatrixoma/surgery , Pilomatrixoma/diagnosis , Hair Diseases/surgery , Hair Diseases/diagnosis
4.
An. bras. dermatol ; 91(4): 500-502, July-Aug. 2016. graf
Article in English | LILACS | ID: lil-792454

ABSTRACT

Abstract: A 54 year-old woman with a 3-year history of rheumatoid arthritis (RA) consulted us because of weight loss, fever and skin eruption. On physical examination, erythematous plaques with a pseudo-vesicular appearance were seen on the back of both shoulders. Histological examination was consistent with rheumatoid neutrophilic dermatosis (RND). After 3 days of prednisone treatment, the skin eruption resolved. RND is a rare cutaneous manifestation of seropositive RA, characterized by asymptomatic, symmetrical erythematous plaques with a pseudo-vesicular appearance. Histology characteristically reveals a dense, neutrophilic infiltrate with leucocitoclasis but without other signs of vasculitis. Lesions may resolve spontaneously or with RA treatment. This case illustrates an uncommon skin manifestation of active rheumatoid arthritis.


Subject(s)
Humans , Female , Middle Aged , Arthritis, Rheumatoid/pathology , Skin Diseases, Vesiculobullous/pathology , Skin/pathology , Biopsy , Erythema/pathology , Neutrophils/pathology
6.
Indian J Dermatol Venereol Leprol ; 2012 Nov-Dec; 78(6): 760-762
Article in English | IMSEAR | ID: sea-142870
7.
Indian J Dermatol Venereol Leprol ; 2012 May-Jun; 78(3): 409
Article in English | IMSEAR | ID: sea-141118
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