5 cm in diameter) lymph nodes in the upper and middle mediastinum
In adults 65% of lesions arise in anterior mediastinum, 10% in middle mediastinum and 25% in posterior mediastinum.
In the present study 80% of the cases were located in anterior mediastinum, 13% cases located in posterior mediastinum and 7% cases located in middle mediastinum which was similar to a study by Vaziri et al.
Other common lesions were tubercular lesions like in anterior mediastinum adenopathy (four), middle mediastinum adenopathy (two), and paravertebral abscesses (three) in posterior mediastinum.
In this study, the most common location of mediastinal mass was anterior mediastinum (50%), followed by posterior mediastinum (36%) and middle mediastinum (14%).
However, in some of the metastatic lymph nodes in the middle mediastinum
, the percutaneous approach cannot be used safely due to possible damage to surrounding anatomical structures.
The middle mediastinum
includes all structures behind this line and anterior to a line drawn connecting a point on each vertebral body 1cm posterior to its anterior margin.
A small amount of air present in the anterior and middle mediastinum
was attributed to the stab wound.
3] Masses of the middle mediastinum
are typically congenital cysts while those arising in the posterior mediastinum are often neurogenic tumours.
Castleman's disease in the middle mediastinum
demonstrates intense contrast enhancement with internal flow voids on MRI (Figure 13).
In our study of 50 cases of mediastinal masses, the anterior mediastinum was the most common compartment to be involved (52%) followed by posterior mediastinum (30%) and middle mediastinum
Also, esophageal cancer can occur as a primary malignancy of the middle mediastinum