Also found in: Dictionary, Thesaurus, Encyclopedia.



Pertaining to a malignant tumor originating in glandular epithelium.


(ad?e-no-kar?sin-o'ma) [ adeno- + carcinoma]
A malignant tumor that originates in glandular tissues, e.g., the breast, the pancreas, or the prostate. Synonym: glandular carcinomaadenocarcinomatous (-mat-us), adjective

acinar adenocarcinoma

Adenocarcinoma in which the cells are in the shape of alveoli. Synonym: alveolar adenocarcinoma

alveolar adenocarcinoma

Acinar adenocarcinoma.

fetal adenocarcinoma

A rare form of adenocarcinoma of the lung, resembling fetal lung tissue when examined microscopically. It consists of columnar cells that have a clear cytoplasm and oval nuclei.

adenocarcinoma in situ

Abbreviation: AIS
A localized cluster of malignant appearing cells found in a gland but not yet spreading outside the basement membrane of the gland.
References in periodicals archive ?
All of the available sections of the appendiceal tumor were evaluated for the presence of adenocarcinomatous and GCT components, and the percentage of adenocarcinomatous component was estimated from the mean percentage of all sections.
No squamous metaplasia or transitional cell or adenocarcinomatous components could be observed.
One case was unique with adenocarcinomatous and sarcomatous foci in addition to urothelial and squamous differentiation.
Histopathological examination revealed mucinous adenocarcinomatous infiltration of the omentum.
Yolk sac tumor of the stomach with an adenocarcinomatous component: a case report with immunohistochemical analysis.