Skin Biopsy in Singapore
By obtaining a sample of skin tissue, we can achieve a definitive diagnosis, which is essential for effective treatment planning.
A skin biopsy is a critical diagnostic procedure used to evaluate skin lesions, inflammatory conditions, and potential malignancies.
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What is a skin biopsy?
Skin biopsy is a procedure where a small sample of skin is removed and studied under a microscope. The most common reason for doing a skin biopsy is to achieve an accurate diagnosis of a skin lesion. It is also useful to exclude specific diagnosis, for example skin cancer or malignancy. Not only do skin biopsies provide support for a clinical diagnosis, the removal of the unwanted skin lesion can also improve cosmesis. Sometimes, skin biopsies are itself a treatment modality to remove the entire skin lesion, and may be use to monitor disease progression and also useful in determining treatment response.Â
Indications for a skin biopsy
Skin biopsies are indicated in various scenarios, including:
- Suspicion of skin cancer (e.g., melanoma, basal cell carcinoma)
- Evaluation of blistering skin diseasesÂ
- Conditions affecting deeper layers e.g. panniculitis, erythema nodosum
- Investigation of unexplained rashes or lesions that do not respond to standard treatments
Skin Biopsy Techniques:
1. Punch Biopsy
The punch biopsy is one of the commonly performed techniques for skin biopsy. The instrument has a hollow and sharp circular piece that allows the removal of deeper skin structures such as the dermis or even fat. The diameter of the punch biopsy sample taken is about 3-8mm. The procedure is performed under local anaesthesia, and the wound is closed with one to two sutures after the procedure. There is low risk of significant scarring, bleeding and infection with this procedure.Â
2. Shave Biopsy
The shave biopsy technique is employed for more superficial skin lesions involving the epidermis. The procedure is performed under local anaesthesia where a surgical blade is used to removing the skin lesion. Its a rather fast procedure that has the advantages of not requiring any suturing. Any bleeding is stopped using electrocautery, and the wound is allowed to heal on its own (we call this healing secondary intention). The shave biopsy technique is commonly used for skin viral warts, seborrhoeic keratosis (age spots) and certain moles.Â
3. Incisional Biopsy
An incisional biopsy is considered when the diagnosis is in doubt, the skin lesion is too large for complete removal, or when non-surgical treatments like radiotherapy are being considered. A portion of the skin lesion is removed for histological diagnosis before planning definitive treatment. An elliptical portion of the skin is removed along the natural skin tension lines. This helps to facilitate healing, and reduces the appearance of scarring. Sutures are placed and removed timely according to the site involved.Â
4. Snip Excisions
As the name suggests, this procedure involves snipping a skin lesion using a pair of surgical scissors. Typically a skin lesion with a narrow base can be removed expediently under local anaesthesia, and the base is cauterised to prevent bleeding. Snip excisions are suitable for skin lesions that are polyp-like. They include skin tags, warts, seborrhoeic keratosis and certain skin cancers.Â
5. Excision Biopsy
An excision biopsy procedure can be both considered a therapeutic and diagnostic procedure. The entire skin lesion is removed, typically with an elliptical excision, the wounds are closed and the specimen sent for histological analysis. This is usually reserved for skin lesions or lumps to exclude precancerous and cancerous growths.Â
Complications of Skin Biopsy
While the majority of skin biopsies are performed safely without any significant complications, we have to be aware of what can go wrong on occasion.
- Pain: This should be minimal during the procedure when adequate anaesthetic is given. For larger skin biopsy sites, you may experience some discomfort which will respond to simple painkillers in most instances.
- Bleeding: Mild bleeding and oozing around the skin biopsy site is common. In most cases this is self limiting. However, bleeding that does not stop would require medical attention and intervention.
- Infections: The skin harbours a large amount of normal bacteria. Occasionally, the skin biopsy site can lend itself to be a port of entry for infections to occur. Infections are characterised by increase redness, warm, pain and swelling. The underarms, groin and lower limbs are more prone to infections.
- Scarring: This is common part of the healing process after your skin biopsy procedure. Scars may appear lighter (hypopigmentation), or even darker (hyperpigmentation) after the procedure. In addition, scars can be depressed (atrophic scars) or even raised (keloids and hypertrophic scars). A full discussion on the most appropriate site for skin biopsy will be undertaken during consultation.
Skin Biopsy Singapore Price
TREATMENT | PRICE (SGD) |
|---|---|
Punch excision | from 288 |
Shave excision | from 288 |
Excision biopsy | from 350 |
Snip excision | from 288 |
Incisional biopsy | from 350 |
schedule a consultation for Skin Biopsy in Singapore
A skin biopsy is an invaluable tool that enhances our diagnostic capabilities and guides treatment decisions. Through careful selection of the biopsy type and thorough pathological evaluation, we can ensure optimal patient care and outcomes.
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References:
- : Maximising diagnostic outcomes of skin biopsy specimens. Int J Dermatol. 52:72–78 2013
- Elston DM, Stratman EJ, Miller SJ. Skin biopsy: Biopsy issues in specific diseases. Journal of the American Academy of Dermatology. 2016 Jan 1;74(1):1-6.
ABOUT DR MOSES NG
MBBS (London) with distinction
Dip Practical Dermatology (Cardiff) with distinction
Member of American Acne & Rosacea Society
Fellow of American Society for Laser Medicine & Surgery
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Dr. Moses Ng is a distinguished professional in the field of aesthetic medicine, renowned for his expertise in advanced cosmetic procedures. With over 15 years of experience, extensive training and a keen eye for detail, Dr. Ng specializes in a wide range of treatments, including injectables, laser therapies, and acne scar management.
Dr. Moses Ng’s commitment to excellence and patient-centric approach have earned him a reputation as a trusted clinician in aesthetic medicine. His continuous pursuit of the latest advancements in the field ensures that his patients receive the highest standard of care and the most effective treatments available.