As nouns the difference between lymph and lymphedema

is that lymph is (obsolete|poetical) pure water while lymphedema is (medicine) the swelling of tissue due to retention of fluid in the lymph vessels.

As nouns the difference between vessel and lymphedema

is that vessel is (nautical) any craft designed for transportation on water, such as a ship or boat while lymphedema is (medicine) the swelling of tissue due to retention of fluid in the lymph vessels.

As a verb vessel

is (obsolete|transitive) to put into a vessel.

As nouns the difference between lymphocyte and lymphopenia

is that lymphocyte is (cytology|immunology) a type of white blood cell or leukocyte that is divided into two principal groups and a null group; b-lymphocytes, which produce antibodies in the humoral immune response, t-lymphocytes, which participate in the cell-mediated immune response and the null group, which contains natural killer cells, cytotoxic cells that participate in the innate immune response while lymphopenia is (medicine) the condition of having an abnormally reduced number of lymphocytes in the blood.

As nouns the difference between blood and lymphopenia

is that blood is while lymphopenia is (medicine) the condition of having an abnormally reduced number of lymphocytes in the blood.

As a noun subunit

is any subdivision of a larger unit.

As an adjective multisubunit is

having multiple subunits.

As nouns the difference between lymphatic and lymphangiectasia

is that lymphatic is (anatomy) a vessel that transports lymph while lymphangiectasia is (medicine) dilation of the lymphatic vessels.

As an adjective lymphatic

is (anatomy) pertaining to lymph or the lymphatic system.

As nouns the difference between vessel and lymphangiectasia

is that vessel is (nautical) any craft designed for transportation on water, such as a ship or boat while lymphangiectasia is (medicine) dilation of the lymphatic vessels.

As a verb vessel

is (obsolete|transitive) to put into a vessel.

Lymphangiectasis is a synonym of lymphangiectasia.

As a noun lymphangiectasia is

(medicine) dilation of the lymphatic vessels.

In medicine|lang=en terms the difference between benign and lymphangioma

is that benign is (medicine) not posing any serious threat to health; not particularly aggressive or recurrent while lymphangioma is (medicine) a benign tumour of the lymph vessel.

As an adjective benign

is kind; gentle; mild.

As a noun lymphangioma is

(medicine) a benign tumour of the lymph vessel.

As nouns the difference between tumour and lymphangioma

is that tumour is (oncology|pathology) an abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia while lymphangioma is (medicine) a benign tumour of the lymph vessel.