Assuntos
Oncocercose/patologia , Dermatopatias Parasitárias/patologia , Adulto , Feminino , Humanos , Malária Falciparum/complicações , Malária Falciparum/tratamento farmacológico , Oncocercose/complicações , Oncocercose/tratamento farmacológico , Dermatopatias Parasitárias/complicações , Dermatopatias Parasitárias/terapiaRESUMO
Varnishes are liquid products that solidify when exposed to air. They are used to cover, protect, and embellish surfaces. Varnishes contain agglutinants and volatile solvents. The main agglutinants are epoxy resins and acrylates, and these acrylates are the substances that produce sensitization most of the time. We explain the use and handling of these varnishes and present four cases of occupational sensitization to acrylic resins present in wood varnishes used by four workers.
Assuntos
Acrilatos/efeitos adversos , Alérgenos/efeitos adversos , Dermatite Alérgica de Contato/diagnóstico , Dermatite Ocupacional/diagnóstico , Pintura/efeitos adversos , Adulto , Dermatite Alérgica de Contato/etiologia , Dermatite Alérgica de Contato/patologia , Dermatite Ocupacional/etiologia , Dermatite Ocupacional/patologia , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Testes do EmplastroRESUMO
We present a patient with phacomatosis pigmentokeratotica (PPK) who developed several basal cell carcinomas on epidermal nevus lesions in adult life. PPK shows an elevated incidence of development of malignant lesions both on the sebaceous or epidermal nevus component as well as on the nevus spilus one.
Assuntos
Carcinoma Basocelular , Neoplasias Primárias Múltiplas , Síndromes Neurocutâneas , Neoplasias Cutâneas , Adulto , Biópsia , Carcinoma Basocelular/patologia , Humanos , Masculino , Neoplasias Primárias Múltiplas/patologia , Síndromes Neurocutâneas/complicações , Síndromes Neurocutâneas/patologia , Pele/patologia , Neoplasias Cutâneas/patologiaRESUMO
Presentamos el caso de un paciente con facomatosis pigmentoqueratótica (FPQ) que desarrolló varios carcinomas basocelulares sobre lesiones de nevo epidérmico en la edad adulta. La FPQ muestra una incidencia elevada de desarrollo de lesiones malignas tanto sobre el componente de nevo sebáceo o epidérmico como sobre el nevo spilus
We present a patient with phacomatosis pigmentokeratotica (PPK) who developed several basal cell carcinomas on epidermal nevus lesions in adult life. PPK shows an elevated incidence of development of malignant lesions both on the sebaceous or epidermal nevus component as well as on the nevus spilus one
Assuntos
Masculino , Adulto , Humanos , Mosaicismo , Células Estromais/citologia , Células Estromais/imunologia , Biópsia/métodos , Neoplasia de Células Basais/diagnóstico , Neoplasia de Células Basais/terapia , Nevo/classificação , Nevo/complicações , Derme/citologia , Derme/imunologia , Tomografia Computadorizada de Emissão/métodos , Hamartoma/complicações , Hamartoma/diagnóstico , Melanoma/complicações , Melanoma/diagnóstico , Síndrome do Nevo Displásico/complicaçõesRESUMO
Tropical woods are highly valued because of their strength, hardness, and resistance to moisture. These characteristics make them easy to work with and extremely durable, and that is why they have been used in the manufacture of wooden jewelry, musical instruments, furniture, and handles of many different objects. We present a case of a 44-year-old man who developed pruritus, erythema, and blistering around his right wrist, corresponding exactly to the area where he had worn a wooden bracelet. Thin-layer chromatography performed with the extract of the shavings revealed (R)-4-methoxydalbergione and obtusaquinone (the main components of cocobolo wood) and (S)-4'-hydroxy-4-methoxydalbergione (in lower amounts). Patch-testing with sawdust from the bracelet resulted in a very strong reaction. Patch tests with the pure constituents yielded +++ reactions to the main sensitizers of cocobolo, including obtusaquinone, but also to sensitizers present in other rosewoods. This last fact can be explained by cross-reactivity between different dalbergiones. Contact dermatitis from tropical woods is more frequent than thought, owing to their high sensitizing properties. An exhaustive search can identify the allergen responsible in many cases.
