[Ascending aortic and pulmonary trunk aneurysms]

A case of two non-atherosclerotic aneurysms localised in the ascending aorta and in the pulmonary trunk is presented. Histopathologically, a severe granulomatous inflammation affecting the whole aneurysms wall was documented. To the best of our knowledge it is the second ever documented case of simultaneous occurrence of aneurysms in the aorta and the pulmonary artery.

Current status and recommendations for use of the frozen elephant trunk technique: a position paper by the Vascular Domain of EACTS.

The implementation of new surgical techniques offers chances but carries risks. Usually, several years pass before a critical appraisal and a balanced opinion of a new treatment method are available and rely on the evidence from the literature and expert's opinion. The frozen elephant trunk (FET) technique has been increasingly used to treat complex pathologies of the aortic arch and the descending aorta, but there still is an ongoing discussion within the surgical community about the optimal indications. This paper represents a common effort of the Vascular Domain of EACTS together with several surgeons with particular expertise in aortic surgery, and summarizes the current knowledge and the state of the art about the FET technique. The majority of the information about the FET technique has been extracted from 97 focused publications already available in the PubMed database (cohort studies, case reports, reviews, small series, meta-analyses and best evidence topics) published in English.

Switching Axial Progenitors from Producing Trunk to Tail Tissues in Vertebrate Embryos

The vertebrate body is made by progressive addition of new tissue from progenitors at the posterior embryonic end. Axial extension involves different mechanisms that produce internal organs in the trunk but not in the tail. We show that Gdf11 signaling is a major coordinator of the trunk-to-tail transition. Without Gdf11 signaling, the switch from trunk to tail is significantly delayed, and its premature activation brings the hindlimbs and cloaca next to the forelimbs, leaving extremely short trunks. Gdf11 activity includes activation of Isl1 to promote formation of the hindlimbs and cloaca-associated mesoderm as the most posterior derivatives of lateral mesoderm progenitors. Gdf11 also coordinates reallocation of bipotent neuromesodermal progenitors from the anterior primitive streak to the tail bud, in part by reducing the retinoic acid available to the progenitors. Our findings provide a perspective to understand the evolution of the vertebrate body plan.

Detail of tree trunk and stump, and small sketch of skyline

[From Jasper Cropsey Sketch book, 1855-1856]

Trunk Highway 60 reconstruction project, Nobles County MN and Osceola County IA : environmental impact statement.

Fsup available only on CD-ROM.

Forecasts of passenger traffic of the domestic trunk air carriers, domestic operations, scheduled service, 1965-1975 /

"September 1965."

Report to the President by the Emergency Board created June 23, 1948 by Executive order 9971 pursuant to Section 10 of the Railway Labor Act : to investigate and report upon a dispute between the Grand Trunk Western Railroad Co., Chesapeake and Ohio Railway Co., Wabash Railroad and the Ann Arbor Railroad Co. and certain of its employees represented by the National Maritime Union of America, N.M.B. cases A-2801, A-2802, A-2803, A-2804, Detroit, Michigan, July 20, 1948.

Signed: Robert G. Simmons, chairman, Thomas F. Gallagher, member, Joseph L. Miller, member.

Seasonal adjustment of domestic trunk air-passenger traffic data, 1951-61 : preliminary /

"February 1963."

Return to an address for copies of papers connected with the Grand Trunk Mail Service since 1863.

Mode of access: Internet.

The Grand Trunk Railway of Canada.

Mode of access: Internet.