Coronary Arterioventricular Anomaly in a Calf

Multiple coronary arterioventricular fistulae.

A 62-year-old man who died suddenly was found at autopsy to have multiple coronary arteriosystemic fistulae involving all three major coronary arteries and both ventricles. This is the second such case reported and the first with biventricular involvement and autopsy findings. A congenital bicuspid valve was also present. Numerous small blood vessels opened onto the endocardial surface of both ...

An isolated single L-II type coronary artery anomaly: A rare coronary anomaly.

The incidence of congenital artery anomalies is 0.2-1.4%, and most are benign. Single coronary artery (SCA) anomalies are very rare. The right coronary artery (RCA) originating from the left coronary system is one such SCA anomaly, and the risk of sudden cardiac death (SCD) increases if it courses between the pulmonary artery and aorta and coexists with other congenital heart diseases. Addition...

Renal Hypoplasia in a Calf

Renal hypoplasia refers to a congenitally small kidney where there is essentially normal residual parenchyma but smaller calyces, lobules, and papillae. This anomaly can be divided into two broad groups: complete (global) renal hypoplasia and segmental renal hypoplasia. In this study, a 3 days-old simmental calf was diagnosed with renal hypoplasia and unreconstructed exstrophic bladder. It pres...

Arterioventricular relations and their classification. Two specimens of arterioventricular discordance and review of published reports.

Myocardial epithelial inclusions in a Holstein calf

Epithelial inclusions were detected in myocardium of a 2-month-old male Holstein calf. Microscopically,nonpurulent myocarditis along with focal tubular and acinar structures covered with cuboidal epithelial cellswas seen in the myocardium. Most tubular and acinar structures stained with Masson’s trichrome were foundto be surrounded with a dense collagen. Tubular and acinar structures had PAS po...