Triangle of "doom"

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A Moment in History

(1514- 1564)

A Flemish anatomist and surgeon, Andreas Vesalius was born on December 31, 1514 in Brussels, Belgium. He is considered to be the father of the science of Anatomy. Up until his studies and publications human anatomy studies consisted only on the confirmation of the old doctrines of Galen of Pergamon (129AD - 200AD). Anatomy professors would read to the students from Galen's work and a demonstrator would point in a body to the area being described, if a body was used at all. The reasoning was that there was no need to dissect since all that was needed to know was already written in Galen's books. Vesalius, Fallopius, and others started the change by describing what they actually saw in a dissection as opposed to what was supposed to be there.

Vesalius had a notorious career, both as an anatomist and as a surgeon. His revolutionary book "De Humani Corporis Fabrica: Libri Septem" was published in May 26, 1543. One of the most famous anatomical images is his plate 22 of the book, called sometimes "The Hamlet". You can see this image if you hover over Vesalius' only known portrait which accompanies this article. Sir William Osler said of this book "... it is the greatest book ever printed, from which modern medicine dates"

After the original 1543 printing, the Fabrica was reprinted in 1555. It was re-reprinted and translated in many languages, although many of these printings were low-quality copies with no respect for copyright or authorship.

The story of the wood blocks with the carved images used for the original printing extends into the 20^th century. In 1934 these original wood blocks were used to print 617 copies of the book "Iconaes Anatomica". This book is rare and no more can be printed because, sadly, during a 1943 WWII bombing raid over Munich all the wood blocks were burnt.

One interesting aspect of the book was the landscape panorama in some of his most famous woodcuts which was only "discovered" until 1903.

Vesalius was controversial in life and he still is in death. We know that he died on his way back from a pilgrimage to Jerusalem, but how he died, and exactly where he died is lost in controversy. We do know he was alive when he set foot on the port of Zakynthos in the island of the same name in Greece. He is said to have suddenly collapsed and die at the gates of the city, presumably as a consequence of scurvy. Records show that he was interred in the cemetery of the Church of Santa Maria delle Grazie, but the city and the church were destroyed by an earthquake and Vesalius' grave lost to history. Modern researchers are looking into finding the lost grave and have identified the location of the cemetery. This story has not ended yet.

For a detailed biography of Andreas Vesalius CLICK HERE.

Personal note: To commemorate Andrea Vesalius' 500th birthday in 2014, there were many scientific meetings throughout the world, one of them was the "Vesalius Continuum" anatomical meeting on the island of Zakynthos, Greece on September 4-8, 2014. This is the island where Vesalius died in 1564. I had the opportunity to attend and there are several articles in this website on the presence of Andreas Vesalius on Zakynthos island. During 2015 I also attended a symposium on "Vesalius and the Invention of the Modern Body" at the St. Louis University. At this symposium I had the honor of meeting of Drs. Garrison and Hast, authors of the "New Fabrica". Dr. Miranda

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Triangle of "doom"

Published: Wednesday, November 04, 2020 07:00 | Written by: Efrain A. Miranda, Ph.D. | Hits: 79904

Click for a larger image

UPDATED: The "triangle of doom" is a name given to a roughly triangular area in the posterior aspect of the anterior wall of the lower abdominopelvic region. It is used by surgeons repairing an inguinofemoral hernia with a mesh and they want to avoid large vascular structures, namely the external iliac artery and vein. The "triangle of doom" will be highlighted when you hover your cursor over the image.

The so-called "triangle of doom" is a misnomer perpetuated by the first laparoscopic surgeons who observed the anatomy of the inguinofemoral region from the posterior aspect. It is neither a triangle (as it only has two boundaries), nor is it an eponym (no such person existed - that is why uppercase should not be used). It does indicate an area where it is extremely dangerous to place staples or sutures during laparoscopic hernia surgery.

The "triangle of doom" is an inverted "V" shaped area with its apex at the internal (deep) inguinal ring. The "triangle of doom" is bound laterally by the gonadal vessels, and medially by the vas deferens in the male, or the round ligament of the uterus in the female. Within the boundaries of this area you can find the external iliac artery and vein.

It should be pointed out that although the "triangle of doom" landmark does protect the surgeon from damaging the external iliac vessels, a portion of these vessels lie outside of this area. In fact, there are several other areas of concern for neurovascular damage when performing a laparoscopic herniorrhaphy.

Hover over the image in this article, and the triangle of doom will appear. Clicking on the image will show a larger image of the posteroinferior abdominal region. The image also depicts other structures of anatomical importance for laparoscopic herniorrhaphy:

• Arcuate line (b)
• Hesselbach's triangle (in yellow)
• Aberrant obturator artery (Corona Mortis) (a)
• Inferior (deep) epigastric artery (c)

Image property of: CAA.Inc. . Artist: M. Zuptich.

Clinical anatomy of the inguinofemoral hernias, as well as abdominal and perineal hernias are some of the lecture topics developed and delivered to the medical devices industry by Clinical Anatomy Associates, Inc. For more information Contact Us.