Melbourne Hand Surgery 

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We recommend that adults and children over 12 wear face masks when attending our clinic, but no longer provide masks to patients and carers. Videoconsultations are conducted via telehealth at our dedicated virtual clinic. We are experiencing high demand for appointments hence require that all patients provide a referral prior to booking an appointment so that we can identify and manage urgent and emergency conditions in a timely manner, and so that our surgeons can assess your suitability for a telehealth appointment and identify any further information or tests that might be required before your consultation. If our surgeons assess that your condition (especially recent injuries) is best managed with hand therapy rather than surgery we may recommend that you see a qualified hand therapist (physiotherapist or occupational therapist) rather than schedule an appointment with our surgeons. Dr Tomlinson does not offer consultations and surgical services where a Medicare Rebatable Item Code does not apply; this includes injections for palmar hyperhidrosis. Dr Tomlinson has scheduled sabbatical leave during much of October, November and December 2023 so will not be available for urgent or emergency referrals during that time. 

Squamous cell cancer

What is squamous cell carcinoma?

scc1

Squamous cell carcinoma (SCC) is a type of skin cancer. It arises from keratinocytes (a particular type of cell) in the skin. It is a malignant condition that has the potential to spread around the body. Luckily if caught early the condition is usually fully treated with surgery.

What is SCC in situ (Bowen’s disease)?

Squamous cell carcinoma in situ (SCC in situ, Bowen’s disease) is an early form of SCC that is yet to invade to the dermal layer of the skin. It is a pre-malignant condition, which means that SCC in situ is a tumour that has not yet developed the capacity to spread. In some instances SCC in situ can be successfully treated with 5-fluorouracil cream; it can also be treated surgically. Speak with your surgeon about what treatment options are most appropriate in your individual circumstances.

What is a keratoacanthoma?

keratoacanthoma

A keratoacanthoma is thought to be a “good” or "favourable" version of a squamous cell carcinoma. They tend to grow rapidly and are indistinguishable from a SCC when you look at them on the skin. Because they are indistinguishable from a rapidly growing SCC the recommended treatment is to have them excised and the tissue examined by a pathologist. Only then can the correct diagnosis be made. If left alone a true keratoacanthoma will regress after it goes through its rapid growth phase, but it may leave a visible scar (which remains even after the anxiety about the uncertainty of the diagnosis settles).

Appearance

scc

SCCs are commonly raised and scaly. However, they can have variable appearances – they may instead look like an ulcer. Other tumours like a keratoacanthoma, SCC in situ or basal cell cancer may be indistinguishable from an SCC when examined on the skin.

Some people have considerable sun damage and have a variety of scaly patches of skin (called "solar keratosis" or "actinic keratosis"). In this instance a worrying sign is a rapid or progressive change in the size of a scaly raised patch, or if the patch becomes sore, inflamed or red.

Treatment

scc2The majority of favourable SCCs can be excised with a margin of 4mm or more, which gives a very high chance of achieving complete clearance. If the pathology results show that the microscopic margin is less than 1mm your surgeon will usually recommend further excision to reduce the risk of recurrence. If you have an aggressive type of SCC a larger margin of surrounding skin is usually excised. The prognosis is best for SCCs that are small, well defined, excised early, excised completely and not invading nerves or other structures.

In some instances treatment can be performed through curettage or dry ice. These are valuable treatment methods, especially in people who regularly develop new skin lesions. A downside of this type of treatment is that you cannot be sure if the SCC has been completely removed. If a SCC recurs after curettage or dry ice it is sensible to have it excised surgically, so that a pathologist can examine the specimen and confirm whether the SCC has been completely removed.

Surgery can be done under local anaesthetic, or under sedation anaesthetic, or general anaesthetic. If the BCC is small it will likely be excised and the skin edges stitched together. If it is bigger then a skin flap or skin graft may be required. Your surgeon will explain the options, risks and benefits of each type of reconstruction to you.

sccfingerOnce the cancer is excised the tissue is sent to a pathologist and examined under the microscope to determine if the cancer has been completely excised and how much of a clear margin around the cancer has been achieved. These results are not obtained at the time of surgery, so if the results show that the cancer has not been completely excised your surgeon will recommend additional surgery so that a complete excision can be achieved. This is important to reduce the chance of the cancer coming back.

During your recovery you should keep your hand elevated higher than your heart to reduce swelling and keep your dressings dry and intact. A sling may be helpful in keeping your hand elevated. The surgery is not usually particularly painful and usually over the counter medications such as paracetamol and/or ibuprofen will be sufficient to keep you comfortable. Your surgeon may place a splint on your hand to reduce movement during the healing stage, to prevent you stretching out the wound in the first 1-2 weeks. Your surgeon will usually be able to predict this before the operation so you can plan how much time off work or how much assistance at home you will need.

Can I use an anti-cancer cream?

moisturising cream hands

An anti-cancer cream with the active ingredient of 5-fluorouracil is effective in treating SCC in situ, but is not recommended for the treatment of squamous cell carcinoma. If you are treating an SCC in situ with 5-fluorouracil cream and it is not getting better I would suspect that it has progressed to be a SCC (progressed from a pre-malignant tumour to a malignant cancer).

Spread

Spread to lymph nodes occurs in around 2-5% of people and is more likely to happen in people with larger skin cancers, inadequate excisions, multiple recurrences and a variety of specific pathological features (in SCCs that look “bad” under the microscope).

If you have symptoms or signs to suggest that your skin cancer has spread to the lymph nodes this will need to be investigated and treated. Your surgeon will be able to advise you about this.

Risk factors

The main risk factors for the development of squamous cell carcinoma are chronic exposure to UV light and immunosuppression.

Will I need radiotherapy or chemotherapy?

It is unusual to need radiotherapy for a simple SCC – radiotherapy (and, to a lesser extent, chemotherapy) is generally reserved as an additional treatment for very extensive skin cancers that have spread to the lymph nodes or have invaded deep structures (like bone or muscle).

Follow up

beachwomansunsmarthatclothingYou will have post op visits scheduled to learn the pathology results, check the wound, remove any non-dissolving sutures, receive advice about scar management and answer any questions you have. Sutures on the hand and fingers are usually removed after 10-14 days. After the wound is healed you will also have follow-up visits scheduled to check for recurrence of the SCC. The frequency and duration of these follow-up visits will depend on multiple factors including your pathology results, how far away you live from your surgeon and whether your GP is happy to be involved in the follow-up.

Complications

scc3It is rare to have significant complications from this type of surgery. Possible complications include:

  • incomplete excision of the skin cancer, requiring further surgery
  • infection, usually requiring antibiotics in tablet form
  • bleeding, which is usually a nuisance rather than a major complication
  • bad/visible/worse-than-expected scarring
  • partial or complete loss of a skin graft (uncommon, may require further surgery)
  • wound breakdown (uncommon, may require further surgery)
  • recurrence of the cancer in the same area in the subsequent months or years

Prevention

coogee beach 200x150

Once you have had one skin cancer it is wise to take steps to prevent the development of future skin cancers. Often patients who have had a skin cancer tell me, incorrectly, that they don’t see any point to starting to protect their skin from the sun because they’ve already had large amounts of sun exposure during their lifetime. We know that limiting sun exposure after you develop your first (or hundredth) skin cancer will reduce the likelihood of you developing further skin cancers. So do be SunSmart and heed the “Slip! Slop! Slap!” message – but equally don’t become so scared of the sun that it stops you from enjoying life in Australia.

For more information and recommendations on skin cancer prevention please click here.

Skin cancers account for 80% of all newly diagnosed cancers

Source: Cancer Council Australia

Two in three Australians will be diagnosed with skin cancer by the time they are 70
Source: Cancer Council Australia

Every year in Australia around 434,000 people are treated for one or more non-melanoma skin cancers. In 2007, 448 people died of the disease.
Source: Cancer Council Australia

FRACS

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