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Scars & Lasers

Staged Excision

At Scars & Lasers, staged excision is a specialist surgical approach used for selected melanomas and infiltrative cutaneous tumours where standard fixed margins may underestimate microscopic spread.

Staged Excision

This technique involves sequential excision with formal histological margin assessment between stages. Reconstruction is performed only once complete clearance is confirmed.

Staged excision is particularly valuable for:

  • Lentigo maligna
  • Large or ill-defined melanoma in situ
  • Selected thin invasive facial melanoma
  • Dermatofibrosarcoma protuberans
  • Other tumours demonstrating infiltrative or subclinical extension

The goal is precise oncologic control while preserving healthy tissue and facial cosmetic subunits.

The Science Behind It

Tumours can extend microscopically beyond what you can see. Fixed margins can either miss residual disease or remove excess healthy tissue.

Staged excision improves accuracy by:

  • excising the visible lesion with mapped margins
  • confirming margins on histology
  • re-excising only involved areas
  • reconstructing once margins are clear
Staged excision step-by-step diagram — the visible skin cancer is excised with a margin, the specimen is oriented and sent to the laboratory, processed and assessed by a pathologist; if margins are not clear the involved area is re-excised and the cycle repeats until all margins are clear and the wound is closed.

Best suited for:

  • Lentigo maligna
  • Large / ill-defined melanoma in situ
  • Selected thin invasive facial melanoma
  • Dermatofibrosarcoma protuberans (DFSP)

May also be considered for infiltrative or unpredictable tumours, including:

  • Microcystic adnexal carcinoma
  • Extramammary Paget disease
  • Atypical fibroxanthoma (esp. recurrent head/neck)
  • Cutaneous leiomyosarcoma
  • Any recurrent or scar-distorted tumour

In short: tumour behaviour, not label alone, guides the margin-control strategy.

Specialist Assessment Drives Staged Excision

Staged excision is never routine. It is considered following specialist evaluation of:

  • Histopathological subtype
  • Growth pattern and depth
  • Margin definition
  • Anatomical location
  • Reconstruction complexity
  • Recurrence risk

Tumours demonstrating:

  • Ill-defined borders
  • Subclinical lateral extension
  • Infiltrative architecture
  • Prior incomplete excision

may benefit from a staged, margin-controlled approach.

Specialist dermatologic surgical planning ensures oncologic safety while optimising cosmetic and functional outcomes — particularly in facial melanoma surgery.

Treatment at a Glance

Treatment TypeNumber of SessionsProcedure TimeTypical Recovery
Mohs Surgery160 minutes +Approximately 1–2 weeks depending on wound size, reconstruction, and location
Staged Excision1-360 minutes +Immediate Recovery

Frequently Asked Questions

A sequential surgical technique where tumour margins are assessed in stages before reconstruction to ensure complete histologic clearance.

Important ACC & Treatment Disclaimer

ACC funding eligibility is determined by the Accident Compensation Corporation on a case-by-case basis. Approval is dependent on injury acceptance, clinical indication, and ACC policy at the time of application. Not all treatments offered at Scars & Lasers are ACC-funded. Private fees may apply for unfunded components of care.

Learn more about ACC Incidents

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