Über das Fehlen einer Kranzarterie

A Common Trunk of the Coronary Arteries in a Bovine Heart (Dos primigenius f. taurus, Linné 1758)

“…It is found rather frequently in similar cases with coronary arteries originating from the aorta by a common trunk, be it a trunk originating at the site of the right coronary artery (D a y ] 959; Cerveny and Kaman 1963;Cerny 1976) or a trunk originating at the site of the left coronary artery (Richter 1936;Hackensellner 1954). An adaptation of the coronary circulation through such »Konusanastomose« may occur after a complete but gradual obstruction of one of the coronary arteries due to sclerotic changes in their wall (Richter 1937). It is difficult to determine whether irt the present case agenesis of the embryonic bud of the left coronary artery or secondary extinction of the beginning portion of a. coronaria sinistra occurred.…”

“…d) Absence of one coronary artery: in such cases a characteristic feature is the absence of the vessel at its origin and possibly a thicker common trunk at the site marking the typical location of the missing coronary artery. This deviation has been described in man (Richter 1937;Hackensellner 1554;Tofilo 1961). e) Origin of one of the coronary arteries from the pulmonary trunk: such origin of a. coronaria dextra was found by Wolffhiigel (1901), Vitums (1963), Fischer and Pirie (1965), Nie (1968) and Mieok and Londen (1969).…”

“…This anastomose often extends from the cranial aspect of the conus trunci pulmonalis (Konusanastomose -Griitzer 1926). Such cases have been found in the dog (Day 1959), in the ox (Cerveny and Kaman 1963;Nie 1968;Cerny 1976), and in man (Richter 1937;Hackensellner 1954). d) Absence of one coronary artery: in such cases a characteristic feature is the absence of the vessel at its origin and possibly a thicker common trunk at the site marking the typical location of the missing coronary artery.…”