MICROANATOMY

Detailed explanation-1: -Within the thoracic duct, you find a milky white fluid containing both emulsified fats, and the lymph fluid found in the rest of the lymphatic system. This fluid is called chyle.

Detailed explanation-2: -Healthy lymph nodes can be larger, due to reactive hyperplasia from acute infection or chronic lung diseases such as emphysema or pulmonary fibrosis; however, enlarged lymph nodes are most worrisome for a pathologic process such as lymphoma, malignant metastases, or sarcoidosis.