title: Basosquamous carcinoma: appearance and reality.
abstract: Basosquamous carcinoma (BsC) is a controversial entity and both a diagnostic and therapeutic challenge. BsC has mixed histopathological characteristics of both basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). BCC and SCC display characteristic histopathology and behaviour; on the other hand, BsC is a rare tumour, which has variable morphology and displays less predictable behaviour. An early diagnosis of BsC is important due to the particularly aggressive nature of the tumour, the increased likelihood of recurrence and the potential for metastasis. Here, we present a case of BsC presenting as an extensive ulcer on the back. The case highlights the aggressive nature of the tumour and variation in appearance. It is important for all clinicians to be aware of this diagnosis so that the urgency of adequate biopsy in specialist clinics is not underestimated.
authors.affiliation: Department of Dermatology, Queen Elizabeth Hospital Woolwich , Lewisham and Greenwich NHS Trust , London , UK.
authors.forename: Rakesh L
authors.initials: RL
authors.lastname: Anand
authors.affiliation: Department of Histopathology, Queen Elizabeth Hospital Woolwich , Lewisham and Greenwich NHS Trust , London , UK.
authors.forename: Damian
authors.initials: D
authors.lastname: Collins
authors.affiliation: Department of Dermatology, Queen Elizabeth Hospital Woolwich , Lewisham and Greenwich NHS Trust , London , UK.
authors.forename: Anna
authors.initials: A
authors.lastname: Chapman