Pancoast tumor is
Ans. is 'a' i.e., Superior sulcus tumor It is a tumor of the pulmonary apex typically found in conjunction with a smoking history. It is situated at the top end of either the right or left lung.Most Pancoast tumors are non-small cell cancers i.e. squamous cell carcinomas (SCCs) or adenocarcinomas.
Superior sulcus tumor
Inferior sulcus tumor
Median sulcus tumor
None of the above