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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

ORTEGA, M et al. Presence and Biometry of Accessory Spleen in Chile Individuals: Study by Computerized Tomography. Int. J. Morphol. [online]. 2020, vol.38, n.3, pp.787-792. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022020000300787.

The spleen is located in the upper left quadrant of the abdomen, subsequently related to the 9th to 11th rib, from which it is separated by the diaphragm and the cost-diaphragmatic recess, it is located behind the stomach and laterally to the left kidney. Due to alterations in its development, accessory spleens (AS) can be generated, being considered an ectopic tissue of the spleen. The AS are considered normal tissue, with the same physiological processes as the main spleen. With the purpose of locating and determining biometric aspects of them, a cross-sectional and descriptive study was carried out on a sample of 220 CT scans belonging to patients over 18 years of age at the Hernán Henríquez Aravena Regional Hospital, Temuco, Chile. For this study, all CT scans with a history of splenectomy and spleen or peri-splenic lesions were excluded. The analysis of the data showed a prevalence of 32.3 % of AS, being able to be of a single presence, two and even three AS per patient. Of a total of 71 people who have at least one AS, 34 (47.89 %) were female and 37 (52.11 %) male. There were 56 patients (78.9 %) with a one AS, 29 (40.85 %) of the female sex and 27 (38.03 %) of the male; 15 (21.1 %) presented more than one AS, 5 (7.04 %) female and 10 (14.08 %) male, although variation in the amount of AS according to sex can be observed, no there is a statistically significant relationship between these variables. The most frequent location found in the axial plane was the anteromedial zone with 59 cases (66.29 %); also, in the sagittal plane, the most frequent location was in the lower pole with 40 cases (44.44 %). Biometric data of these AS are shown in tables. This information will be of great morphological and medical value due to the limited existing literature on this subject in Chilean individuals.

Keywords : Anatomy; Accessory Spleen; Imaging; Biometry.

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