thrombopenia vs thrombocytopenia

thrombopenia and thrombocytopenia both are nouns.

Word	Noun	Adjective	Verb	Adverb
thrombopenia	Yes	No	No	No
thrombocytopenia	Yes	No	No	No

As nouns, thrombopenia and thrombocytopenia are synonyms defined as:

thrombopenia and thrombocytopenia: a blood disease characterized by an abnormally small number of platelets in the blood

thrombopenia (noun)	thrombocytopenia (noun)
a blood disease characterized by an abnormally small number of platelets in the blood	a blood disease characterized by an abnormally small number of platelets in the blood