What is excision?
Excision is a common surgical technique used to remove unwanted or diseased tissue from the body. It can be applied to different parts of the body, such as the skin, muscles, organs or other tissues. The procedure can be performed under local or general anaesthetic, depending on the size and location of the tissue to be removed. Excision is often used in the treatment of skin cancer, benign tumours, cysts and other abnormal tissue growth.
How does excision work?
During an excision procedure, the surgeon makes an incision around the tissue to be removed. The tissue is then carefully separated from the surrounding healthy tissue and removed completely. Depending on the nature of the tissue being removed, the surgeon may choose to remove an extra margin of healthy tissue around the abnormal tissue to ensure that all abnormalities have been eliminated. The removed tissue is often sent to a laboratory for pathological examination to determine the nature of the lesion. After the excision, the incision is closed with stitches, and in some cases a skin graft or flap may be needed to cover the wound.
What are the benefits of excision?
Excision offers various benefits:
- Complete removal of abnormal tissue: By removing the tissue completely, excision can help to prevent further growth or spread of abnormal cells.
- Diagnostic value: The removed tissue can be analysed to make an accurate diagnosis, which is crucial for deciding on further treatment.
- Minimal invasiveness: In many cases excision can be performed as a minimally invasive procedure, especially for superficial skin lesions, with relatively little recovery time.
- Versatile use: Excision can be used for a wide range of conditions, from cosmetic problems to serious health risks such as cancer.
When is excision suitable?
Excision is suitable for patients who need a diagnosis or treatment for abnormal tissue growth, such as tumours, cysts or suspicious skin lesions. It is often the preferred method for treating small to medium-sized lesions located on superficial or easily accessible parts of the body. Excision can also be used to treat certain forms of skin cancer, such as basal cell carcinoma or squamous cell carcinoma, where complete removal of the lesion is essential. For larger or deeper tumours, however, a more extensive surgical approach may be needed.
The difference between excision and biopsy
Although excision and biopsy are both surgical procedures that remove tissue for examination, there is an important difference between the two. In a biopsy, only a small piece of the suspicious tissue is removed for diagnostic purposes, whereas in an excision the entire abnormal tissue is removed. Excision often has a therapeutic aim, the intention being to treat the condition completely by removing the entire abnormal area, while a biopsy is usually aimed only at obtaining enough tissue for a diagnosis.
Risks and considerations
As with any surgical procedure, there are risks associated with excision. Possible complications include infection, bleeding, scarring and, in some cases, incomplete removal of the abnormal tissue, which can lead to recurrence of the condition. It is important that the procedure is performed by an experienced surgeon who can carefully assess how much tissue needs to be removed and how the wound can best be closed to minimise the risk of complications. Before the procedure, the surgeon will inform the patient about the procedure, possible complications and the expected recovery process.
Conclusion
Excision is an effective and versatile surgical technique used for the complete removal of abnormal tissue from the body. The procedure offers both diagnostic and therapeutic benefits, and is widely used in the treatment of skin lesions, tumours and other tissue abnormalities. Although excision is generally safe, it is important that the procedure is performed by an expert surgeon to ensure the best results and prevent possible complications.
Want to know what we do in this area? Read about Removal of skin imperfections or having a mole removed.
