The term maxillo-ostio-choanal polyp was deemed appropriate in cases where it originates in the maxillary sinus ostium
A single PV potential closely following or fused with an atrial potential in the ostium
of the PVs is the most commonly observed pattern during sinus rhythm (SR) [7, 8].
The presence of RCMs, osteomeatal complex obstruction (OMCO), an accessory ostium
, and abnormalities of the middle turbinate (AMT) were evaluated independently for the right and left sides.
An unusual medial ostium
of a concha bullosa of the middle turbinate.
The aim of the present study is to assess the normal anatomy and variations of SA nodal artery by studying the number, origin, course, length and distance of its origin from the ostium
of parent artery.
The distance of an individual ostium
from the base of cusps of aortic valve by using Vernier caliper (Figure 2).
Other variables have been evaluated by computed tomography, such as ostium
of the bronchial arteries in the aorta , the vertebral levels origin [14, 15, 18, 24], path through the posterior mediastinum , and diameter [14, 19, 25, 26].
In this case, the aneurysm extended into the coronary artery ostium
. Coronary artery aneurysm, in contrast, is defined as coronary artery dilatation which exceeds the diameter of the largest normal coronary artery by 1.5 times.
According to the Neri's definition of coronary malperfusion in aortic dissection,[sup] we differentiated among three types of lesions based upon operative findings: type A ( n = 23), ostial dissection is defined as a disruption of the inner layer limited to the area of the coronary ostium
without disrupting coronary vessel; type B ( n = 8), dissection with a coronary false channel; and type C ( n = 5), circumferential detachment with an inner cylinder intussusception.
DIAGNOSIS: Arm-lead reversal; normal sinus right atrial enlargement and right ventricular enlargement suggesting an ostium
secundum atrial septal defect; acute inferior myocardial infarction.
was enlarged to an extent of approximately 1x1.5cm, bone overlying the upper part of nasolacrimal duct was also removed.
The above abnormality was accompanied by an ostium
secundum-type atrial septal defect.