Came back positive for cancer: Here is the report: Final Diagnosis
A. Lung, Left Upper Lobe Nodule, Core Needle Biopsy:
Adenocarcinoma, moderately to poorly differentiated, consistent with pulmonary origin; see comment.

Comment:
The biopsy shows lung tissue infiltrated by cytologically malignant epithelioid cells forming glands with some possible solid areas. Immunostains show that the malignant cells are positive for CK7, CEA, TTF-1, and Napsin, and are negative for GATA3 and p63.

The findings are consistent with pulmonary adenocarcinoma, which shows acinar and possibly solid architectural patterns in this material.