Hi,I was dignosed of suspicious right upper lobe density last june of 2015..Then,the next xray was right upper lobe ptb but the results of my sputum laboratories was negative..After 6 mos.this Feb. 2016,the next xray results Ive diagnosed of having cavitary ptb..I had request of sputum gene expert but the results was not detectable..My question,,Do I have Cavitary Ptb?