Cancer of the lung is the most common
malignancy globally and is associated with
numerous complications (World Cancer
Research Fund International (WCRFI) 2008,
Cancer Research UK (CRUK) 2013). There are
several different histological types of lung cancer
and it is important to differentiate between
these because each will influence treatment
choice and prognosis. The two main types of
lung cancer are: non-small cell lung cancer
(NSCLC), accounting for approximately 85%
of lung cancer diagnoses (Leighl 2012), and
small cell lung cancer (SCLC), accounting for the
remaining 15% of lung cancer diagnoses (CRUK
2013). NSCLC is further divided into squamous