Basal-squamous cell carcinoma collision tumour in the facial region

Collision tumours are defined as multiple neoplasms adjacent to or combined within one area (Boyd and Rapini, 1994). To our knowledge this is the only case of a facial basal-squamous cell carcinoma (BCC-SCC) collision tumour identified in British literature. An 87-year-old male presented with four s...

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Bibliographic Details
Published in:Advances in oral and maxillofacial surgery 2021-10, Vol.4, p.100181, Article 100181
Main Authors: Hallett, Georgia E., Holden, Adam M., Mitchard, John, Colbert, Serryth D.
Format: Article
Language:English
Subjects:
Basal cell carcinoma
Collision tumours
Neoplasia
Squamous cell carcinoma
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Summary:Collision tumours are defined as multiple neoplasms adjacent to or combined within one area (Boyd and Rapini, 1994). To our knowledge this is the only case of a facial basal-squamous cell carcinoma (BCC-SCC) collision tumour identified in British literature. An 87-year-old male presented with four suspected skin neoplasms. Two lesions were excised with the right preauricular lesion identified as a BCC-SCC collision tumour, excised with clear margins. This highlights the possibility of multiple skin neoplasms in a single site and aims to increase clinician awareness of collision tumours, especially in high-risk regions. We suggest a 4–6 mm margin may be sufficient in removing BCC-SCC collision tumour. Systemic metastases are more common in squamous cell carcinoma (Sanderson and Ironside, 2002) than in basal cell carcinoma (Wadhera et al., 2006) and therefore it is possible that higher rates may be present in BCCs that collide with SCCs.
ISSN:2667-1476
2667-1476
DOI:10.1016/j.adoms.2021.100181