Apices is the pleural for apex.
Apex of lung refers to the topmost part of lung.
Infiltrates means there are shadows seen in the upper part of lung.
has suggested that you get a new xray in different pose so that the upper part of lung becomes more clear without overlapping shadow of the collarbone.
If you are having cough
do get your sputum examined for Tuberculosis
bacilli from nearby government hospital or any accredited lab.