Final answer:
The disease suspected is pulmonary coccidiomycosis.
Step-by-step explanation:
The disease that is suspected in this case is pulmonar coccidiomycosis. The patient presents with a mass in the right lung along with a chronic cough.
The X-rays show a well delineated round density in the right lower lobe. The skin test for tuberculosis is negative, and the mycology culture reveals the growth of a white fluffy mold, which is indicative of Coccidioides species.