| e-Medicine article | Pancoast tumor | |
| PubMed abstracts | Acta Cytologica abstracts on Squamous cell carcinoma cytological diagnosis | |
| e-Medicine article | Lung cancer, non-small cell | |
| Microscopy at Pathweb Atlas | Squamous cell carcinoma | |
| Microscopy at WebPath | Squamous cell carcinoma microscopy | |
| PathMax | Cytopathology links of interest |