2 Primary Cancers Neck and Lung - 1273384

Hi, my dad was diagnosed with stage 3 head & neck squamous cell carcinoma & nsclc andocarcinoma cancers no mutations. He first received 35 weeks of rad to neck & 4 out of 7 weeks of cistplatin. His blood levels dropped a couple times delaying chemo. His follow up CT & PET revealed no tumor & lymph node resolved in neck. The lung showed reduction from 5.4 x 3 to 4.1 to 2. SUV decrease by 5 to 10. However the lymph nodes increased in size and SUV. Hilar, pre tracheal, mediastal, precarnel and subcarnil nodes affected. No stage provided for lung. I can only assume the lung is stage 3b as no other organs have been affected. So for the lung they did 30 weeks of radiation and change chemo to carboplatin and pemetrex every 3 weeks. He was only able to get two infusions as his blood levels drop landing him in the hosp. His last week of rad was delayed by a week. Originally they said after rad was done they would give him a 5 week break and cont with chemo. After break he had a CT scan. His blood showed his platelet count at 101, hemoglobin at 10 and rbc at 3.5. Tumor reduced. Spiculated tumor is 2.7 x 1.4, tracheobrionchial node 1x1.3 stable, satellite node and all other nodes stable. This the first time the tumor was identified as spiculated. What does that mean? Is that good or bad or was it likely always spiculated? Is the tracheobrionchial the same as the pretracheal node? What does it mean all of these nodes are stable. Does it mean they shrunk or that they did not get bigger? Dr decided not to give him more chemo due to his levels and decided to wait and give him a PET in June. I am concerned about him waiting that long? Currently nothing has showed up elsewhere. I asked if it would continue to shrink and the dr maybe a little but not likely. If the tumor is still there won't it grow while we are waiting for June? I asked about maintenance chemo while we were waiting to do the PET, and they said they are not taking that path righ