The true incidence and prevalence of<unk>  remains unknown, but this form of lung cancer is considered relatively uncommon. In one of the largest studies of this particular variant, Moro-Sibilot and co-workers found a 6.3% prevalence of Bas-SqCC among 1,418 consecutive NSCLC patients at their institution.<unk>  carcinomas of the lung - like nearly all recognized variants of lung cancer - are highly associated with tobacco smoking.<unk>  architecture in pulmonary carcinomas has been shown to be particularly prevalent in smokers with heavy exposure, and<unk>  cell carcinoma has the strongest association with tobacco exposure than any other major cell type of NSCLC. As compared to other forms of lung cancer, Bas-SqCC often occurs in those who are somewhat older than average. As SqCC is also associated with presentation at somewhat older ages, the true relevance/effect size of the<unk> -age interaction remains unknown.<unk><unk>  cell carcinoma usually begins centrally, in the larger proximal bronchi.<unk>  carcinoma primary in the lung may also occur in a multicentric form.
Basaloid squamous cell lung carcinoma
Salivary gland–like carcinoma of the lung
Adenosquamous lung carcinoma
Epithelial-myoepithelial carcinoma of the lung
Sarcomatoid carcinoma of the lung
Basaloid large cell carcinoma of the lung
Mucinous cystadenocarcinoma of the lung
Giant-cell carcinoma of the lung