Skin Tumour Biopsy: Myths and Facts
A biopsy helps establish a diagnosis and plan the next appropriate step.
Why a biopsy is needed
Appearance alone cannot always distinguish a benign lesion from melanoma, basal cell carcinoma, squamous cell carcinoma or another skin cancer. Examination of tissue under a microscope is often needed for a final diagnosis.
Which biopsy is used
The method depends on size, location, depth and the suspected diagnosis. An excisional biopsy removes a lesion completely when appropriate. Incisional or punch biopsy may be used for a larger or difficult lesion. Not every lesion requires the same technique.
Myth: “A biopsy makes cancer spread”
A properly planned biopsy is a standard diagnostic procedure and is not considered a cause of cancer spread. Losing time or performing an intervention without a diagnosis and treatment plan can be more harmful.
Why planning matters
For suspected melanoma or sarcoma, the method and location of biopsy can affect later surgery. A specialist team should assess a large, deep, atypical or complex lesion before definitive treatment is planned.
Related resources
This information is educational and does not replace individual medical advice.
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