Morphological aspects of mural thrombi deposition residual lumen route in infrarenal abdominal aorta aneurisms.
OBJECTIVE
To assess the most frequent deposition site of mural thrombi in infrarenal abdominal aorta aneurisms, as well as the route of the residual lumen.


METHODS
Assessment of CT scan images from 100 patients presenting asymptomatic abdominal aorta aneurism, and followed at HC-FMRP-USP.


RESULTS
In 53% of the cases the mural thrombus was deposited on the anterior wall; from these, in 22%, the residual lumen described a predominantly right sided route; in 22%, a left sided route; on the mid line in 5%; and crossing over the mid line in 1%. In 23%, the deposition of thrombi was concentric. In 11% it occurred on the posterior wall; from these, in 5%, the route of the residual anterior lumen was predominantly right sided; in 5%, left sided; and crossed over the mid line in 1%. In 13% complex morphological deposition patterns were found.


CONCLUSIONS
Mural thrombi formation was predominantly found on the anterior wall of the aneurismatic mass, with the route of the residual lumen projecting towards the posterior wall.
Department of Anatomy and Surgery, Ribeirão Preto Faculty of Medicine, University of São Paulo, SP, Brazil.
Thiago Adriano Silva
TA
Guimarães
Guilherme Nobrega
GN
Garcia
Marcelo Bellini
MB
Dalio
Matheus
M
Bredarioli
Cleber Aparecido Pita
CA
Bezerra
Takachi
T
Moriya
D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging*; D001019:Aortic Rupture / Q000000981:diagnostic imaging; D005260:Female; D006331:Heart Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D013927:Thrombosis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed