Topic
Abnormal Origin
About: Abnormal Origin is a research topic. Over the lifetime, 31 publications have been published within this topic receiving 733 citations.
Papers
TL;DR: A review of congenital variations of coronary arterial variations based upon a series of 224 cases finds that there is an abnormal communication between an artery and a cardiac chamber or an abnormal origin of a major coronary artery from the pulmonary artery.
Abstract: The coronary arteries, like other organ arterial patterns in the body, are subject to congenital variations of both minor and major consequence. This paper presents a review of these variations based upon a series of 224 cases. There are three basic categories. First, minor anomalies in which there is a variation of the origin of the vessels from the aorta and the distal circulation is normal. Second, major anomalies in which there is an abnormal communication (arteriovenous) between an artery and a cardiac chamber or an abnormal origin of a major coronary artery from the pulmonary artery. Third, secondary anomalies in which the coronary arterial variation probably represents a circulatory response to the primary intracardiac pathologic defect. Each category is discussed in detail with reference to the specific anomalies and illustrated with examples from our study.
490 citations
Journal Article•
TL;DR: An abnormal origin of the vertebral artery from the common carotid artery (VA-CC) may occur on the right or left side with different embryonic mechanisms, and the pivotal points in differentiating the embryonic mechanisms of VA-CC are discussed.
Abstract: An abnormal origin of the vertebral artery from the common carotid artery (VA-CC) may occur on the right or left side with different embryonic mechanisms. We describe a patient with a double developmental anomaly, a right VA-CC and a right aortic arch. The rotation of the aortic arch caused a "twist" of the embryonic mechanisms of VA-CC and misdirected the differential diagnosis of the embryonic mechanisms at first glance. We discuss the pivotal points in differentiating the embryonic mechanisms of VA-CC.
52 citations
Abstract: This anomaly was discovered during routine dissection of a 67 year old white male subject who had died in congestive cardiac failure. A post-fixed brachial plexus was the only other abnormality of note found in the body. The left internal carotid artery bifurcated 1.3 em below the level of the transverse process of the atlas into the abnormal basilar artery and the internal carotid artery proper. The basilar was slightly the larger (external diameter 0.45 em) and was more directly in line with the parent trunk (fig. 4). The internal carotid artery proper (external diameter 0.43cm) ran first ventrad and then rostrad, lying parallel with, and anterior to the basilar. It entered the carotid canal and its course and distribution thereafter were normal. The basilar artery first continued the line of the parent trunk, then ran dorsad to reach the hypoglossal canal. Just above the transverse process of the atlas it gave off a small branch which passed dorsad into the suboccipital region where its subsequent course could not be traced. The basilar artery entered the skull through the hypoglossal canal, then curved caudad, dorsad and medially to the level of the foramen magnum (fig. 5). From this level it curved rostrad and medially to reach the midline. Thereafter it pursued the usual course
51 citations
TL;DR: A case of a cadaver in which both left and right vertebral arteries had an abnormal origin is demonstrated, in which a double-originating vertebral artery was seen.
Abstract: The aim of this study is to demonstrate a case of a cadaver in which both left and right vertebral arteries had an abnormal origin. On the left, the artery arose directly from the arch of the aorta. O
48 citations
Journal Article•
40 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2019 | 1 |
| 2018 | 2 |
| 2017 | 3 |
| 2016 | 2 |
| 2015 | 2 |
| 2014 | 1 |