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Basal-cell carcinoma (BCC), also known as basal-cell cancer, basalioma [7] or rodent ulcer, [8] is the most common type of skin cancer. [2] It often appears as a painless raised area of skin, which may be shiny with small blood vessels running over it . [ 1 ]
Of nonmelanoma skin cancers, about 80% are basal-cell cancers and 20% squamous-cell skin cancers. [14] Basal-cell and squamous-cell skin cancers rarely result in death. [6] In the United States, they were the cause of less than 0.1% of all cancer deaths. [1] Globally in 2012, melanoma occurred in 232,000 people and resulted in 55,000 deaths. [6]
The cure rate with Mohs surgery cited by most studies is between 97% and 99.8% for primary basal-cell carcinoma, the most common type of skin cancer. [2]: 13 Mohs procedure is also used for squamous cell carcinoma, but with a lower cure rate. Recurrent basal-cell cancer has a lower cure rate with Mohs surgery, more in the range of 94%.
A study examining over 4,000 biopsied skin lesions identified clinically as seborrheic keratoses showed 3.1% were malignancies. Two-thirds of those were squamous cell carcinoma. [11] To date, the gold standard in the diagnosis of seborrheic keratosis is represented by the histolopathologic analysis of a skin biopsy. [12]
The chance of basal cell skin cancer coming back (recurring) ranges from about 5% to up to 15%, depending on the size of the tumor and treatment, the American Cancer Society noted. And cases that ...
Basal_Cell_Carcinoma,_ulcerated,_nodular_on_right_lower_cheek.jpg (252 × 264 pixels, file size: 18 KB, MIME type: image/jpeg) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
The most common reason to use cytological examination in malignant tumoral diseases is to distinguish basal cell carcinoma from other tumors, such as squamous cell carcinoma and melanoma. Tzanck smear test is 97% sensitivity and 86% specificity for the diagnosis of basal cell carcinoma. Squamous cell carcinoma: Cytologic atypia of keratinocytes
Basal cell carcinoma account for approximately 8% of all vulvar cancers. It typically affects women in the 7th and 8th decade of life. [22] These tend to be slow-growing lesions on the labia majora but can occur anywhere on the vulva. Their behavior is similar to basal cell cancers in other locations.