Presentation
Chronic cough.
Patient Data
Ill-defined opacity in the medial right upper zone. Cardiomediastinal contour is unremarkable.
Spiculated mass in the right upper lobe, which is intensely FDG-avid. No evidence of nodal or distant metastases.
The patient proceeded to bronchoscopy and bronchial washings were obtained.
Histopathology
Microscopic description: The smears and cell block are hypercellular with abundant malignant glandular cells occurring singly and in groups, with scattered bronchial cells, in a background of blood.
Diagnosis: Non small cell carcinoma - adenocarcinoma.
Case Discussion
Lung adenocarcinoma is a subtype of non small cell lung cancer. Differentiating lung cancer histologically on imaging is difficult, and in this case there are no specific features to help.
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