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Double Right Coronary Artery Originating from Separate Ostia: A Report of Two Cases.

Natarajan M, Kumarguru BN, Biligi DS, Raghupathi AR - N Am J Med Sci (2015)

Bottom Line: We report two cases of double RCA incidentally found in electrocuted patients.Both cases showed double RCA arising from separate ostia.It is important to know the anatomic variants.

View Article: PubMed Central - PubMed

Affiliation: Department of Pathology, Bangalore Medical College and Research Institute, Bangalore, Karnataka, India.

ABSTRACT

Context: Coronary artery anomalies are uncommon and most are incidental findings. Double right coronary artery (RCA) is a very rare coronary artery anomaly.

Case report: We report two cases of double RCA incidentally found in electrocuted patients. Both cases showed double RCA arising from separate ostia. On microscopy, both right coronaries showed no significant pathology in the first case while in the second case, the posterior RCA showed features of obliterative arteritis.

Conclusion: Although double coronary artery has been regarded as hemodynamically insignificant, it may be associated with atherosclerosis, acute coronary syndromes, and other anomalies. It is important to know the anatomic variants. Meticulous grossing and careful observation could unearth hidden anomalies.

No MeSH data available.


Related in: MedlinePlus

Photomicrograph of the posterior RCA showing obliterative arteritis (H&E, ×400)
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Figure 3: Photomicrograph of the posterior RCA showing obliterative arteritis (H&E, ×400)

Mentions: The weight and measurement values of the heart are depicted in Table 1. The pulmonary arterial trunk and the semilunar valves were normal. The aorta showed two right coronary ostia[ Figure 2]. The courses of the arteries from two right coronary ostia were similar to that of the first case. The posterior RCA that coursed toward the junction between the right atrium and the right ventricle showed partial obliteration. Other coronary arteries and their branches were patent. Microscopy of the posterior RCA revealed obliterative arteritis with neutrophilic infiltration in the intima and media [Figure 3]. Sections from the rest of the myocardium and other arteries showed no significant pathology. Sections from the lungs and the kidneys showed areas of congestion, edema, and hemorrhage.


Double Right Coronary Artery Originating from Separate Ostia: A Report of Two Cases.

Natarajan M, Kumarguru BN, Biligi DS, Raghupathi AR - N Am J Med Sci (2015)

Photomicrograph of the posterior RCA showing obliterative arteritis (H&E, ×400)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4561444&req=5

Figure 3: Photomicrograph of the posterior RCA showing obliterative arteritis (H&E, ×400)
Mentions: The weight and measurement values of the heart are depicted in Table 1. The pulmonary arterial trunk and the semilunar valves were normal. The aorta showed two right coronary ostia[ Figure 2]. The courses of the arteries from two right coronary ostia were similar to that of the first case. The posterior RCA that coursed toward the junction between the right atrium and the right ventricle showed partial obliteration. Other coronary arteries and their branches were patent. Microscopy of the posterior RCA revealed obliterative arteritis with neutrophilic infiltration in the intima and media [Figure 3]. Sections from the rest of the myocardium and other arteries showed no significant pathology. Sections from the lungs and the kidneys showed areas of congestion, edema, and hemorrhage.

Bottom Line: We report two cases of double RCA incidentally found in electrocuted patients.Both cases showed double RCA arising from separate ostia.It is important to know the anatomic variants.

View Article: PubMed Central - PubMed

Affiliation: Department of Pathology, Bangalore Medical College and Research Institute, Bangalore, Karnataka, India.

ABSTRACT

Context: Coronary artery anomalies are uncommon and most are incidental findings. Double right coronary artery (RCA) is a very rare coronary artery anomaly.

Case report: We report two cases of double RCA incidentally found in electrocuted patients. Both cases showed double RCA arising from separate ostia. On microscopy, both right coronaries showed no significant pathology in the first case while in the second case, the posterior RCA showed features of obliterative arteritis.

Conclusion: Although double coronary artery has been regarded as hemodynamically insignificant, it may be associated with atherosclerosis, acute coronary syndromes, and other anomalies. It is important to know the anatomic variants. Meticulous grossing and careful observation could unearth hidden anomalies.

No MeSH data available.


Related in: MedlinePlus