osteogenic sarcoma vs sarcoma

osteogenic sarcoma and sarcoma both are nouns.

Word	Noun	Adjective	Verb	Adverb
osteogenic sarcoma	Yes	No	No	No
sarcoma	Yes	No	No	No

As nouns, sarcoma is a hypernym of osteogenic sarcoma; that is, sarcoma is a word with a broader meaning than osteogenic sarcoma:

osteogenic sarcoma: malignant bone tumor; most common in children and young adults where it tends to affect the femur
sarcoma: a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer

osteogenic sarcoma (noun)	sarcoma (noun)
malignant bone tumor; most common in children and young adults where it tends to affect the femur	a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer