How is a skin biopsy performed?
Nov 17, 2022
Source: Cainiu Health
Dr. Liu Wan
Introduction
Skin biopsy is an invasive clinical procedure in which tissue samples are taken from localized skin lesions for histopathological examination, enabling definitive clinical diagnosis or guiding treatment. The specific procedure involves disinfecting and anesthetizing the skin area, making an incision around the lesion to obtain a specimen measuring 0.2 cm in width and 1 cm in length, followed by suturing the wound. The specimen is then labeled with patient information and sent to the pathology department for examination.
Skin biopsy is an invasive clinical procedure involving the collection of tissue samples from localized skin lesions for histopathological examination, aiming to achieve a definitive clinical diagnosis or guide treatment. The specific steps are as follows:
1. Disinfection: Routinely disinfect the local surgical site.
2. Anesthesia: Local infiltration anesthesia is commonly used. The anesthetic should be injected around the lesion, not directly into the skin lesion itself.
3. Sampling: Make an incision using a scalpel, keeping the blade perpendicular to the skin surface. The incision should follow the natural skin lines and extend deep into the subcutaneous tissue. The specimen should typically measure approximately 0.2 cm in width and 1 cm in length. After removal, suture the wound.
4. Specimen submission: Verify the patient's information, confirm accuracy, and then send the specimen to the laboratory for pathological examination.
