lung sickness

[palomo]

does a sharp pain in the upper side of the left lung could be cancer,,collapse,,or emphysema???

[campbellking]

Cancer is unlikely to cause a sudden sharp pain, collapse is more likely to cause breathlessness, and emphysema is a chronic lung disease again more likely to cause breathlessness.
Sudden pain can be caused by a spontaneous pneumothorax (most common in skinny young men), pulmonary embolism (clot on the lung most common with people with clotting disorders), pneumonia or pleurisy.

[Eve]

If you or someone has has this pain then a trip to the doctors asap is advised, if the pain is severe or there are other symptoms then casualty.

NHS can probably advise you better - (0845) 46 47.