The clinical types of BCC have already been described above: superficial (flat), nodular (raised), pigmented, and Morphoeic (scar-like).
The clinical types may not correlate with the pathology report, and there are types of BCC that can only be determined on the pathology report.
Some types of BCC require extra or more treatment and/or monitoring – so the type of BCC as indicated in the pathology report is important.
BCC pathology reports will often include the term “palisading” and this refers to BCC cells that clump together as blocks or rows along the edge of the BCC.
Perineural invasion is the invasion of nerves by the tumour and, though not common, indicates a more aggressive cancer.