What Is the Life Prognosis for a 1b Stage Nodular Melanoma?


Quick Answer

The five-year survival rate for individuals with a 1b melanoma diagnosis is 92 percent, according to a 2008 study done by the American Joint Committee on Cancer reported by the American Cancer Society. The 10-year survival rate is 82 percent.

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Full Answer

The American Joint Committee on Cancer's study encompassed over 60,000 patients, reports the American Cancer Society. The results are rough estimates, however, as they include patients who may have died from causes other than cancer.

An individual's survival is dependent on genetic factors and the cancer's response to treatment, adds the American Cancer Society. Other factors include age and race, as individuals over 70 have shorter survival times as do people of African-American descent. The location of the tumor is relevant; melanoma of the palm, sole of the foot or nail bed is a more serious diagnosis. Those with weakened immune systems, including organ transplant recipients and those with HIV, also have lower survival rates.

Type 1b melanoma is characterized by an ulcerated nodule less than 1 millimeter thick or a non-ulcerated 2-millimeter-thick nodule, according to Cancer Research UK. There are no other ulcers elsewhere on the body, and the cancer has not spread to the lymph nodes. These nodules are commonly removed surgically without complication.

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