Squamous cell carcinoma (SCC) is a skin cancer that develops from the squamous cells making up the outer layers of the skin. On the face and head it is common on the lip, ear, temple, nose, eyelid and scalp, areas that receive steady ultraviolet exposure over many years. SCC is the second most common skin cancer in Australia after BCC.
A facial SCC often appears as a firm, raised lump that feels tender, or as a rough, scaly, crusted patch that keeps breaking down. Many grow over weeks or months rather than years. SCC can also develop within sun damaged skin such as a solar keratosis, or on the lower lip, where sun damage causes persistent scaling and cracking.
Unlike BCC, SCC has some capacity to spread to lymph nodes, and lesions on the ear and lip carry a higher risk of doing so. For that reason a suspected SCC on the face should be assessed without delay. If you have a sore, lump or scaly patch on your face that has not healed within a few weeks, see your GP or dermatologist.
Assessment includes examination of the lesion with dermoscopy, a check of the surrounding sun damaged skin, and feeling the lymph nodes in the neck and around the ears, since facial SCC drains to those areas.
Diagnosis is confirmed by biopsy and histopathology. The pathologist reports the thickness, how well differentiated the tumour is, how deeply it invades and whether it is tracking along nerves. These features determine the margin taken at surgery and whether imaging, lymph node assessment or discussion at a multidisciplinary meeting is recommended.
Surgical excision with a margin is the standard treatment for a facial SCC. Radiotherapy is an alternative in selected cases and is directed by a radiation oncologist. Because facial SCCs often sit on the lip, ear or eyelid, the repair is planned alongside the excision.
Timeframes vary with the size of the excision, the site and the type of reconstruction, and with any additional treatment that is advised.
Dr Maryam Seyedabadi, Specialist Plastic Surgeon, MBBS FRACS, AHPRA MED0001341746, consults at 2c Heeley Street, Paddington in Sydney. Surgery is performed at The Skin Hospital in Darlinghurst, St Luke’s Hospital in Potts Point, East Sydney Private Hospital, Sydney Day Hospital or Double Bay Day Hospital. A referral from your GP or dermatologist allows a Medicare rebate to be claimed for these procedures.
Your plan is set once your examination findings and pathology have been reviewed, and it can change if the report indicates that more tissue needs to be taken. What is achievable depends on the type, size, site and stage of the lesion. Call 1300 067 668 to arrange an appointment.
Squamous cell carcinoma, or SCC, is a common skin cancer arising from the flat cells of the outer skin layer. It usually appears on sun-exposed sites such as the forehead, nose, ear, lip and scalp as a thickened scaly spot, a tender red lump, or a sore that crusts and bleeds. SCC tends to grow faster than basal cell carcinoma and, if left untreated, can spread.
SCC is more aggressive than basal cell carcinoma and can involve deeper tissue or spread to lymph nodes if it is left, so prompt assessment matters. See your GP or dermatologist without delay about any scaly, tender or bleeding spot on the face. Diagnosis is confirmed by biopsy and histopathology, and a referral allows a Medicare rebate to be claimed for surgical treatment.
Treatment is usually excision with a planned margin, then reconstruction using direct closure, a local flap or a skin graft, planned around features such as the eyelid, nostril and lip. Higher risk lesions may involve Mohs surgery, performed by a Mohs surgeon, with the reconstruction carried out afterwards by Dr Seyedabadi. Margins are checked by pathology and further surgery is sometimes needed.
Outcomes depend on the type, size, site and stage of the lesion. You are reviewed to check healing and to go through the pathology report on the margins. Because SCC carries a risk of local recurrence and of spread to lymph nodes, ongoing checks of the scar and the neck are advised, alongside regular skin checks with your GP or dermatologist. Radiotherapy or further surgery is occasionally recommended.