<unk>  cancer is a large and exceptionally heterogeneous family of malignancies. Over 50 different histological variants of<unk>  cancer are explicitly recognized within the fourth (2004) revision of the World Health Organization Classification of<unk>  Tumours ("WHO-2004"). Many of these entities are quite rare, have only been recently described, and remain poorly understood. Basaloid forms of<unk>  carcinoma were first described in the peer-reviewed medical literature by Dr. Elisabeth Brambilla and her colleagues in 1992. In the third revision of the World Health Organization<unk>  tumor typing and classification scheme, published in 1999, basaloid variants of both squamous<unk> <unk>  carcinoma (SqCC) and large<unk> <unk>  carcinoma (LCLC) were recognized as distinct entities. In the fourth revision (2004) of the WHO system (currently the world standard) Bas-SqCC is classified as one of four recognized variants of squamous<unk> <unk>  carcinoma. As a variant of SqCC, it is considered a non-small<unk> <unk>  cancer (NSCLC).
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