Lung squamous cell carcinoma
Mass on chest X-Ray.
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Solid mass with irregular contours and well-defined limits, located in the left upper lobe with retraction of the adjacent pleural surface. There are a small calcified nodule within the mass, probably corresponding to a granulomatous lesion involved by the tumor. There is enhancement to contrast media.
As the mass touch the thoracic wall, the patient underwent to ultrasound guided transparietal mass biopsy. The pathologic study reveals a lung squamous cell carcinoma.
This kind of tumor accounts for ~30-35% of all lung cancers and in most instances are due to heavy smoking, like on this patient. Although squamous cell carcinoma of the lung is traditionally known to arise centrally (66-90%), the incidence of peripherally located is increasing.