Porocarcinoma
Porocarcinoma[edit | edit source]
Porocarcinoma, also known as eccrine porocarcinoma, is a rare type of skin cancer that originates from the eccrine sweat glands. It is considered a malignant form of poroma, a benign sweat gland tumor. Porocarcinoma is most commonly found in the elderly population and can occur anywhere on the body, although it frequently appears on the lower extremities.
Clinical Presentation[edit | edit source]
Porocarcinoma typically presents as a solitary, slow-growing nodule or plaque that may be ulcerated or bleeding. The lesion can vary in color, appearing as red, pink, or brown. Due to its nonspecific appearance, porocarcinoma can be mistaken for other skin conditions such as basal cell carcinoma, squamous cell carcinoma, or melanoma.
Pathophysiology[edit | edit source]
Porocarcinoma arises from the intraepidermal portion of the eccrine sweat glands. The exact cause of porocarcinoma is not well understood, but it is believed to be associated with genetic mutations and ultraviolet radiation exposure. The tumor cells exhibit atypical features and can invade surrounding tissues, leading to potential metastasis.
Diagnosis[edit | edit source]
The diagnosis of porocarcinoma is confirmed through a biopsy and histopathological examination. Under the microscope, porocarcinoma is characterized by atypical cells with ductal differentiation. The presence of ductal structures and infiltrative growth patterns are key features in distinguishing porocarcinoma from other skin malignancies.
Treatment[edit | edit source]
The primary treatment for porocarcinoma is surgical excision with clear margins. Mohs micrographic surgery is often employed to ensure complete removal of the tumor while preserving healthy tissue. In cases where the tumor has metastasized, additional treatments such as radiation therapy or chemotherapy may be considered.
Prognosis[edit | edit source]
The prognosis for porocarcinoma depends on the stage at diagnosis and the presence of metastasis. Early detection and complete surgical removal generally result in a favorable outcome. However, advanced cases with regional or distant metastasis have a poorer prognosis.
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