Table III.

Major predictors for cBCC recurrence.

Tumour and patient features	High risk features
Size/ location	≥ 6 mm diameter in high-risk locations (central face, eyelids, eyebrows, periorbital, nose, lips, chin, mandible, preauricular, ears, postauricular, and temples) > 10 mm diameter in intermediate-risk locations of the head (cheeks, forehead, and scalp) and neck > 20 mm diameter in low-risk areas such as the trunk and the extremities
Borders	Poorly defined
Primary vs recurrent	Recurrent
Site of prior radiotherapy	Yes
Immunosupression	Present
Aggressive histopathological features	Morpheaform, sclerosing or mixed infiltrative pattern component in any single lesion Micronodular pattern component in any single lesion Basosquamous (metatypical) Perineural invasion

from Bichakjian et al., 2016 ⁵⁹, mod.