For this reason, a computed thorax tomography was performed, which showed multiple lymph nodes localized on the subcarinal
and paratracheal areas, and a centrally-localized, soft tissue density lesion with irregular borders, causing minimal distortion on the peripheral parenchymal tissue on the superior segment of the lower lobe of the right lung.
7) The paratracheal or subcarinal
masses show areas of low attenuation or enhancing septae, thereby suggesting a granulomatous disease process, such as histoplasmosis or tuberculosis (12) (Figure 4).
CT of the chest showed diffuse mediastinal edema; marked paratracheal, subcarinal
, hilar, and azygo-esophageal recess adenopathy (the largest node measuring 4.
The mass was located in the azygoesophageal recess, extending from immediately subcarinal
to the supradiaphragmatic area, and was excised via a standard right thoracotomy approach.
55,56) The focal type presents mainly as a localized and calcified mass in the paratracheal or subcarinal
compartments of the mediastinum or in the pulmonary hilum.
On the 2nd day of admission, CT of the chest revealed right lower lobe infiltrations and enlarged lymph nodes in the right hilar, right paratracheal and subcarinal
pN2: Metastasis in ipsilateral mediastinal and/or subcarinal
Computed tomography of the chest showed diffuse cylindrical bronchiectasis and mild subcarinal
The positive lymph nodes included subcarinal
nodes in 2 cases (2/14, 14%).
Computed tomography scan of the chest with contrast showed minimal bilateral pleural effusions, and minimal mediastinal lymphadenopathy, particularly within the subcarinal
region without any significant parenchymal abnormalities (Fig.
Because of a suspicion of lymphoma, computed tomographic scans of the chest and abdomen were performed, which showed moderate bilateral hilar, pretracheal, and subcarinal
adenopathy (Figure, A).
The CT scan findings were followed up with a positron emission tomography scan, which showed hypermetabolic foci in the right and left lower lobes of the lung consistent with the CT-identified masses, and several hypermetabolic foci in the right paratracheal, subcarinal
, and hilar regions.