Bronchoalveolar carcinoma variants are -: (A) Clara cell, (B) Adenosarcoma, (C) Mucinous type, (D) Type II pneumocyte
Answer is A. Ref:Textbook of pathology (Harsh mohan) 6th edition,page no. 501 Bronchiolo-alveolar carcinoma is characterised by cuboidal to tall columnar and mucus-secreting epithelial cells growing along the existing alveoli and forming numerous papillary structures. Ultrastructurally, these tumour cells resemble Clara cells or less often type II pneumocytes.