Re: ct scan on neck and chest !
There is no evidence of cancer, but you really cannot diagnose cancer by a CT scan. It requires a biopsy of tissue. The one lymph node on the right under the chin (submandibular) is mildly enlarged. It is 15 mm (1.5 cm) and normal nodes are under 1.0 cm. There are many reasons a lymph node can be enlarged, most often related to an infection. In this location, something like a tooth abcess could cause it. The size of lymph nodes in chest is not specified, but normally anything larger than one cm would be measured and reported as to size, so I would assume those are normal. In general, when a node is enlarged, an attempt is made to correlate it with symptoms and come up with possible explanations. If a node remains enlarged for over a month, with no explanation, it is investigated further, sometimes removed for biopsy. I hope that helps until you get feedback from your Dr.