How does the diagnosis of BAC shape systemic therapy considerations today?

Article

It's not uncommon for a question here to be about the a pathologist's terminology on a report that equivocates about whether a lesion is bronchioloalveolar carcinoma (BAC) or another form of adenocarcinoma, perhaps "well-differentiated adenocarcinoma", especially if it has a radiographic appearance of a hazy infiltrate or many small ground glass opacities.

Afatinib vs. Placebo in EGFR-TKI Treated Patients: Efficacy in the Eye of the Beholder

Article

It was almost exactly a year ago that I described the basic results of the global LUX Lung-1 trial that enrolled 585 patients with advanced NSCLC who had gone at least 12 weeks without progression on Tarceva (erlotinib) or Iressa (gefitinib) in a 2:1 fashion to either the oral targeted therapy afatinib (an irreversible inhibitor of the human epidermal receptor (HER) family, of which EGFR

Who to Test for an EGFR Mutation or ALK Rearrangement: Filtering Based on TTF-1 Status

Article

Thyroid transcription factor-1 (TTF-1) is a protein seen on the surface of thyroid cells, but also on about 70-75% lung adenocarcinomas and only a small minority (~10%) of squamous cell NSCLC tumors. In fact, the presence of TTF-1 on a NSCLC tumor provides a good hint for the pathologist that this is an adenocarcinoma. It's an immunohistochemical (IHC) test that is done on the vast majority of lung cancers, and there's some new information that suggests it may also be useful for predicting which patients are especially unlikely to have an EGFR mutation or ALK rearrangement.

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