Sorry in advance for the long post, but wanted to provide as much info as I can...my mom has HCC (primary liver cancer).
On a recent CHEST CT scan (January 2013, without contrast) there was a "lobulated nodular density in right lung base adjoining the hemidiaphram" it said that this "increased in size", however the prior CT scans of the chest (November 2012 and Sept 2012 and June 2012) NEVER mentioned this. Therefore I am not sure why they said "increased in size"??? In other scans that have been done in the past such as an abdominal CT and MRI, where you are able to see the lung bases, they indicate "clear lung base" (the most recent MRI of abdomen was January 2013 and says lung base "large paraespohogeal varices and hiatal hernia. The varices are bc of my mom's liver cirrohis).
Most recently, a Pet CT scan (February 2013) said that the "nodule at right lung base is not clearly visible".
Can this possibly mean that the "lobulated nodule" disappeared? Or is it that something is making it impossible to view?
I can not comprehend bow can something not be clearly visible if there is only a 4 week difference between the CT scan and the Pet CT scan?
What does lobulated mean? Is "lobulated".a characteristic of a lung cancer or a cancer that has spread/metastasized from my mom's HCC? Are "lower chest" and "lung base" the same area? Does a CT or MRI of the "abdomen" get a good view of the lung bases as well? Is it common for lung cancer/cancer that has metastasized to occur in the lung bases or does it occur anywhere in the lungs?
The Pet CT does say, under impressions that the "other nodules that were present in the past have either minimized in size or resolved themselves".
Just as a background my mom does have a prior history of MAC lung infection (in 2003 - 10 years ago) so on her chest CT there are scattered centribronchial nodules in both upper lobes as well as " tree in bud" appearance. The "lobulated nodule" in question is in the right Lung base.