Dermatofibroma
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Caso típico de Dermatofibroma — nódulo duro no membro. Dermatofibroma é um tumor benigno relativamente comum.
relevance score : -100.0%
ReferencesDermatofibroma é uma doença de pele comum, encontrada principalmente nos braços ou nas pernas. Aparece como nódulos firmes sob a pele, geralmente com menos de 1 centímetro de diâmetro. Embora geralmente seja indolor, pode estar associado a pequenos traumas prévios, como picadas de insetos ou espinhos. Os dermatofibromas podem afetar qualquer pessoa, mas são mais frequentes em mulheres entre 20 e 40 anos. São, em sua maioria, lesões benignas, embora possam recidivar após a remoção. É importante diferenciar os dermatofibromas de um tumor cutâneo mais agressivo, o dermatofibrosarcoma protuberans.
Dermatofibroma is a commonly occurring cutaneous entity usually centered within the skin's dermis. Dermatofibromas are referred to as benign fibrous histiocytomas of the skin, superficial/cutaneous benign fibrous histiocytomas, or common fibrous histiocytoma. These mesenchymal cell lesions of the dermis clinically are firm subcutaneous nodules that occur on the extremities in the vast majority of cases and may or may not be associated with overlying skin changes. They are most commonly asymptomatic and usually relatively small, less than or equal to 1 centimeter in diameter. Often, patients who present with a dermatofibroma relate a history of possibly inciting local trauma at the site, such as from an insect bite or superficial puncture wound from thorns or wood splinters. Dermatofibromas occur in people of all ages, although more commonly during the ages of the 20s to 40s, and develop more frequently in females than males, with as high as a 2:1 female to male predominance according to some reports. They are a benign tumor, although there have been cases of local recurrence, and even more rarely, distant metastases have been reported. When considering the differential diagnosis of these lesions, it is vitally important to distinguish dermatofibromas from dermatofibrosarcoma protuberans, a similar-appearing but more aggressive cutaneous neoplasm.
Dermatofibroma is a commonly occurring cutaneous entity usually centered within the skin's dermis. Dermatofibromas are referred to as benign fibrous histiocytomas of the skin, superficial/cutaneous benign fibrous histiocytomas, or common fibrous histiocytoma. These mesenchymal cell lesions of the dermis clinically are firm subcutaneous nodules that occur on the extremities in the vast majority of cases and may or may not be associated with overlying skin changes. They are most commonly asymptomatic and usually relatively small, less than or equal to 1 centimeter in diameter. Often, patients who present with a dermatofibroma relate a history of possibly inciting local trauma at the site, such as from an insect bite or superficial puncture wound from thorns or wood splinters. Dermatofibromas occur in people of all ages, although more commonly during the ages of the 20s to 40s, and develop more frequently in females than males, with as high as a 2:1 female to male predominance according to some reports. They are a benign tumor, although there have been cases of local recurrence, and even more rarely, distant metastases have been reported. When considering the differential diagnosis of these lesions, it is vitally important to distinguish dermatofibromas from dermatofibrosarcoma protuberans, a similar-appearing but more aggressive cutaneous neoplasm.
O tratamento preferido para lipomas, dermatofibromas, keratoacanthomas, pyogenic granulomas e epidermoid cysts é a remoção cirúrgica. Cherry angiomas e sebaceous hyperplasia são comumente tratados com terapia a laser ou eletrodissecação. A crioterapia e a excisão de barbear são escolhas populares para acrochordons e seborrheic keratoses. Se um médico de família não tiver certeza sobre o diagnóstico ou tratamento de uma lesão, ou se uma biópsia confirmar melanoma, recomenda‑se o encaminhamento a um especialista.
The preferred treatment for lipomas, dermatofibromas, keratoacanthomas, pyogenic granulomas, epidermoid cysts is surgical removal. Cherry angiomas, sebaceous hyperplasia are commonly treated with laser therapy or electrodesiccation. Cryotherapy and shave excision are popular choices for acrochordons, seborrheic keratoses. If a family physician feels uncertain about diagnosing or treating a lesion, or if a biopsy confirms melanoma, referral to a specialist is recommended.
The preferred treatment for lipomas, dermatofibromas, keratoacanthomas, pyogenic granulomas, epidermoid cysts is surgical removal. Cherry angiomas, sebaceous hyperplasia are commonly treated with laser therapy or electrodesiccation. Cryotherapy and shave excision are popular choices for acrochordons, seborrheic keratoses. If a family physician feels uncertain about diagnosing or treating a lesion, or if a biopsy confirms melanoma, referral to a specialist is recommended.
Dermatofibromas podem se formar como reação a lesões prévias, como picadas de insetos ou espinhos. São classificados como lesões cutâneas benignas, o que significa que são completamente inofensivos, embora possam ser confundidos com uma variedade de tumores subcutâneos. Dermatofibromas penetrantes e profundos podem ser difíceis de distinguir, mesmo histologicamente, de tumores fibrohistocíticos malignos raros, como o "dermatofibrossarcoma protuberans".
○ Diagnóstico e Tratamento
A maioria é benigna, mas lesões grandes (>5 mm) podem necessitar de biópsia.
#Dermoscopy
#Skin biopsy