How serious should I take basal cell cancer removed from my nose?

First: find a different doctor, one interested in you and not in his fee. Next, find a fellowship-trained Mohs surgeon to remove your skin cancer. Mohs surgery has the highest cure rate of all treatments for skin cancer, particularly basal cell carcinoma, and spares the greatest amount of normal tissue. Your area of the country has numerous fellowship-trained Mohs surgeons who are excellent doctors. Visit the American College of Mohs Surgery's website to find one in your area and check patient reviews to help you make a selection. A biopsy is done simply to confirm the diagnosis of skin cancer. There is generally no intention of removing the entire tumor even though that can happen. Even though nothing may be visible to you, it doesn't mean there is no more tumor still present. A prudent Mohs surgeon who can't find evidence that tumor still exists may choose to observe the area rather than proceed with surgery, or may need to do another biopsy for verification.

Basal Cell Carcinoma is a locally destructive type of skin cancer that is notorious for recurrence when not adequately treated. It can become quite disfiguring if left untreated, especially when located in cosmetically sensitive areas such as the nose. Typically this type of skin biopsy is performed for diagnosis and is not adequate treatment for a skin cancer. Biopsies sample a portion of the lesion, leaving some behind. This type of "sampling" biopsy is not intended to remove the entire lesion. It is not advisable to leave a known skin cancer untreated as it will likely grow and become more of a problem to remove in the future. Mohs micrographic surgery allows for 100% margin control and is tissue-sparing, which means it offers the highest cure rate while preserving as much normal tissue as possible.