Based on the diagnostic description, the tissue sample is defined as "mediastinal tumor". I actually sent it for further analysis to SJMC, and the diagnosis that came back was "lymphocyte rich thymoma". So I have a feeling that it is a confirmed growth in my dad's chest, whether it is benign or malignant, that is up to the specialist to tell us. All I know is that it may require surgery, which means most probably my dad will be refered to IJN.
In the mean time, my dad is going for alternative medicine plus some traditional massage. His cough is becoming unbearable, and he gets tired even going to the bathroom. Sleepwise, he still has to lean back and sleep, and he will start getting his spasm around 2 or 3am. The cough will subside if one of us massage his back. That somehow will alleviate the spasm, and it is a relief to see him catch on his sleep right through the morning. He actually sleeps better after Fajr prayer, and sometimes we don't have the heart to wake him up for breakfast.
And we are still counting the days for Tuesday when Dato' Dr J will be available for consultation...