Early detection improves skin cancer outcomes

Early detection of skin cancer typically allows for successful treatment with surgery. However, weeks can sometimes pass between the biopsy and the definitive operation that removes the tumor.

Delay increases risk of incomplete removal

According to Deutsches Ärzteblatt, a study by Celina Sit from the El Paso medical faculty found that waiting 31 to 60 days before the definitive surgery for skin cancer increases the risk of positive margins by about 30%. This applies even to in situ melanomas, which are limited to the surface of the skin.

Two-stage surgical process

The management of melanoma generally requires two successive interventions. In the first step, the doctor removes the suspicious lesion to examine it under the microscope. If the diagnosis is confirmed, a second operation removes a margin of healthy skin around the scar.

Waiting period impacts surgical success

Celina Sit's research highlights that a waiting period of 31 to 60 days increases the risk of finding tumor cells at the edge of the removed tissue. This increase also affects the earliest melanomas, where cancerous cells remain confined to the epidermis.

Positive margins require further action

A positive margin means that the surgeon did not remove all the tumor, and diseased cells still protrude from the cut surface. For melanoma, this residue often requires a new operation and increases the risk of the disease recurring in the same place.

Tumor growth during delay

The explanation given is that the delay allows the tumor cells to continue multiplying and spreading, even if not visible to the naked eye. This makes the edge of the lesion more blurred, complicating the surgeon's ability to remove all diseased cells.

Need for further research

These results require confirmation, as they come from a conference presentation rather than a peer-reviewed publication. However, they align with the established idea in dermatological oncology that earlier detection and removal of melanoma lead to better outcomes.

Prevention and monitoring remain key

Monitoring a beauty spot that changes in shape, color, or size remains the simplest way to seek early consultation and surgery. Researchers now aim to test the effect of the delay on larger groups and over time, to determine if these lost weeks affect survival.