Snapchat clips 40: Anterior mediastinal mass case

1- Look to mediastinal enlargement and also contour abnormality.

2-When you look to chest x-ray compare both sides to each other searching for additional opacities have to be explained.

3-Lateral x-ray is more useful than you think; you could gives location of mediastinal abnormality and locate lung parenchymal abnormality.

4-To easy locate a lung abnormality; you must gives a land mark such as aortic arch and distance between it and abnormality.

5-DDX of anterior mediastinal mass 4 TS:

-Thyroid lesions.

-Thymus lesions.

-Teratoma.

-Terrible lymphoma.

6-DDX of small hypodense splenic lesions on CT imaging:

-Neoplasm such as lymphoma.

-Infection such as candida.

-Inflammatory such as sarcoid.

7-Air bronchogram is not only pneumonia; there are two other causes for this sign which are lymphoma and adenocarcinoma.

8-How we can diagnose nodular perilymphatic distribution?

Presence of lung nodules in subpleural; perifissural; periseptal and peribronchovascular distribution are in perilymphatic distribution.

Perilymphatic distribution are not infection and should be considered neoplastic as in case of lymphoma and lymphangitic carcinomatosis.

It can be seen also in sarcoid or silicosis (less common).

9- In case of anterior mediastinal mass; look to the arteries confined to this area where it should not be compressed or invaded in case of lymphoma (floating sign). while veins in this area could be compressed in lymphoma due to its low intra pressure resulting in stasis of blood which could cause thrombosis in these veins.

10-Be aware about vascular structures and airways structures.