Hilar adenopathy is a term for enlarged mediastinal lymph nodes.
A hilum is a place where arteries, veins, and nerves enter and leave a structure. There hilums all over the body including the spleen, kidney, lung, and lymph nodes. Lymphadenopathy means that something is wrong with the lymph nodes. But in general usage it means the lymph nodes are enlarged. So in hilar lymphadenopathy, there are lymph nodes around whatever organ that are enlarged.
There are a number of enlarged lymph nodes noted in the center of the chest cavity.
tiny vessels
lymph-nodes
Lymph nodes
spleen, tonsils, lymph nodes, heart, thymus,
A primary complex refers to a tuberculosis infection within the lung tissue - the tuberculous focus is small and will usually involve the hilar and para-tracheal lymph nodes.
Lymph Nodes
Anterior and posterior cervical lymph nodes.
The pectoral lymph nodes are also known as the anterior group and can be found just inferior to the pectoralis minor muscle, the cephalic nodes are also known as deltopectoral lymph nodes and they receive lymph from the superficial vessels only
inguinal