Posts Tagged ‘ramus intermedius artery’

Human coronary artery anatomy would  rank  top among  all human biological mysteries. The variations in their branching pattern is next only to palmar creases and cerebral gyri !

The left coronary artery can divide in to two , three  or even four branches occasionally.The trifurcation  occurs in upto 20 % of population .The ramus intermedious  can some times be a major division .Usually it supports the diagonal or OM territory.

It is very rare to see a ramus  take a long course . Here  is a patient whose LAD is small  which  falls  short of LV apex . Sensing this , the ramus travels all the way to apex and support the LAD in distress !

RAO caudal view shows the Ramus reaching all the way to LV apex! Note the diminutive LAD and absence of true OMs from LCX.

* Technically  this can  also be  referred to as a rare form of dual LAD system .

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