Mohs’ Micrographic Surgery
Mohs’ Micrographic surgery is a special frozen tissue histopathological technique to ensure that tumour cells, both at the edges and in the base of the tumour, have been removed with minimal removal of normal tissue. The tumour is removed in sequential layers of tissue until all of the margins are clear.
It gives a high cure rate for facial basal cell carcinoma — including the eyelids and periocular area and is the preferred technique at Clinica London. It is highly recommended for complete excision of morphoiec and recurrent tumours.
It provides maximum preservation of the healthy eyelid, periocular and facial tissues, meaning that the defect is small, and hence less oculoplastic reconstruction is required.
Steps in Mohs’ Micrographic Surgery
After a basal cell carcinoma is suspected:
- The oculoplastic surgeon assesses the eyelid, periorbital or facial growth
- The diagnosis is then confirmed by a small incisional biopsy under local anaesthesia
- The dermatological surgeon excises the basal cell carcinoma using Mohs’ micrographic surgery
- The reconstruction is then performed by the oculoplastic surgeon
Other, non-surgical techniques can be used for basal cell carcinoma treatment, including:
- Radiotherapy (X-ray treatment)
- Topical drugs (Fluorouracil, Efudex® or Imiquimod)
- Photodynamic therapy