Dermatofibroma
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Caso típico de Dermatofibroma ― Un nódulo duro no membro. Dermatofibroma é un tumor benigno relativamente común.
References
Dermatofibroma é unha condición común da pel que se atopa principalmente nos brazos ou nas pernas. Aparece como grumos firmes baixo a pel, a miúdo de menos de 1 centímetro de tamaño. Aínda que adoita ser indolora, pode estar relacionada con lesións menores pasadas como picaduras de insectos ou pinchazos de espiñas. Os dermatofibromas poden afectar a calquera, pero son máis comúns en mulleres de 20 a 40 anos. Normalmente son benignos, pero ás veces poden volver despois da eliminación. É importante diferenciar os dermatofibromas dun tumor de pel máis agresivo chamado 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, epidermoid cysts é a extirpación cirúrxica. Cherry angiomas, sebaceous hyperplasia trátanse habitualmente con terapia láser ou electrodesecación. A crioterapia e a escisión do afeitado son opcións populares para acrochordons, seborrheic keratoses. Se un médico de familia non está seguro de diagnosticar ou tratar unha lesión, ou se unha biopsia confirma o melanoma, recoméndase a derivación a un 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.
Os dermatofibromas poden formarse como reacción a lesións anteriores, como picaduras de insectos ou pinchazos. Os dermatofibromas clasifícanse como lesións cutáneas benignas, o que significa que son completamente inofensivos, aínda que os dermatofibromas poden confundirse cunha variedade de tumores subcutáneos. Os dermatofibromas de penetración profunda poden ser difíciles de distinguir, mesmo histoloxicamente, dos tumores fibrohistocíticos malignos raros como o "dermatofibrosarcoma protuberans".
○ Diagnóstico e Tratamento
A maioría son benignas, pero as lesións grandes (> 5 mm) poden requirir biopsia.
#Dermoscopy
#Skin biopsy