Lung squamous cell carcinoma

Discussion:

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. 

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