Answered By: Jeffrey Orrico Last Updated: Feb 10, 2017 Views: 1052
An aneurysm is defined as:
A localized widening (dilatation) of an artery, a vein, or the heart. At the point of an aneurysm, there is typically a bulge. The wall of the blood vessel or organ is weakened and may rupture.
Webster's New World™ Medical Dictionary, s.v. "aneurysm," accessed May 04, 2013, http://0-www.credoreference.com.enterprise.sacredheart.edu/entry/webstermed/aneurysm
The Merck manual of diagnosis and therapy provides substantial information on diseases and medical conditions, their diagnosis, treatment, and prognosis. Searching the phrase "apical aneurysm" leads to an article concerning a parasitic disease, Chagas Disease. The Credo Reference database includes several online medical dictionaries that can help, too.
When researching a medical term, it helps to develop background information about the particular systems, organs, age groups, diseases, etc., associated with the term. In this case, aneurysms relate to the heart and circulatory system and Chagas Disease. To research this condition further, use the library resources under the SUBJECT headings "Heart diseases" and "Human parasitology".
Scan medical encyclopedias for other conditions associated with "apical aneurysm", such as congenital defects, coronary artery disease, trauma, etc. The context of your research may suggest other avenues for research.