However, the hilar lymph nodes, either right or left hilar lymph nodes, are present in the human respiratory system. The location of the lymph nodes may be at various points in the human body, for instance, around the neck, etc. Ultrasound is a non-invasive method to assess these nodes. However, imaging can easily recognize the distribution and size of the lymph node way more accurately than any examination method. In unexplained conditions, imaging studies, tissue biopsy, and laboratory tests are recommended in identifying if any enlarged hilar lymph node is visible or not. Few individuals also report developing enlargement of this lymph node due to the consumption of drugs. It may be due to the result of malignancy, that is, carcinoma or lymphoma. Other causes include inorganic dust diseases such as silicosis and berylliosis. It may also be caused by heart failure and sarcoidosis. It may be caused by infections such as mycoplasma, tuberculosis, histoplasmosis, and coccidioidomycosis. Various factors are responsible for the expansion of the right hilar lymph node or hilar adenopathy in particular. The enlargement of the right hilar lymph nodes is hilar adenopathy. The collection of lymph from the pulmonary nodes and then their drainage into the tracheobronchial nodes is the function of the right hilar lymph node. The right hilar lymph node refers to the visible lymph nodes in the hilum of the triangular depression at the right lung and its bronchi’s junction. It allows the transportation of materials throughout the human body. These lymphocytes present in the lymph nodes are usually responsible for the defense of the body against disease and infection.įrom an anatomical point of view, hilus or hilum means a fissure or depression where nerves and blood vessels kind of structures enter the organs.
The lymph nodes contain white blood cells or lymphocytes. The function of these nodes is to filter those substances that travel through the lymphatic fluid. Lymph nodes refer to the small bean-shaped structure constituting the body’s immune system, protecting the human body from various microorganisms.