endometrial cancer vs carcinoma

endometrial cancer and carcinoma both are nouns.

Word	Noun	Adjective	Verb	Adverb
endometrial cancer	Yes	No	No	No
carcinoma	Yes	No	No	No

As nouns, carcinoma is a hypernym of endometrial cancer; that is, carcinoma is a word with a broader meaning than endometrial cancer:

endometrial cancer: cancer of the uterine lining
carcinoma: any malignant tumor derived from epithelial tissue; one of the four major types of cancer

endometrial cancer (noun)	carcinoma (noun)
cancer of the uterine lining	any malignant tumor derived from epithelial tissue; one of the four major types of cancer