carcinoma in situ vs carcinoma

carcinoma in situ and carcinoma both are nouns.

Word	Noun	Adjective	Verb	Adverb
carcinoma in situ	Yes	No	No	No
carcinoma	Yes	No	No	No

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

carcinoma in situ: a cluster of malignant cells that has not yet invaded the deeper epithelial tissue or spread to other parts of the body
carcinoma: any malignant tumor derived from epithelial tissue; one of the four major types of cancer

carcinoma in situ (noun)	carcinoma (noun)
a cluster of malignant cells that has not yet invaded the deeper epithelial tissue or spread to other parts of the body	any malignant tumor derived from epithelial tissue; one of the four major types of cancer