Open AccessMorphological study of foramen venosum in dry human skulls in Northeast Brazil
Author(s) -
Ivon Marcos Inácio Rodrigues,
Desiré Dominique Diniz de Magalhães,
André de Sá Braga Oliveira,
Pablo Mariz de Oliveira,
Amanda do Nascimento Oliveira e Carneiro
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.5327/1516-3180.394
Subject(s) - foramen , anatomy , medicine , biology
The foramen venosum (FV) is located in the larger wing of the sphenoid bone and allows the passage of emissary veins that help to balance the intra and extracranial pressure. Knowledge of its morphology and associated structures has an important surgical value. Objective: Analyze the morphology of FV and its relation to adjacent foramina in Northeast Brazil. Methods: 117 human adult skulls of Federal University of Paraíba were classified by gender, FV type and laterality, being evaluated the diameter of FV, foramen ovale (FO) and foramen spinosum (FS), as well as the distance of FO and FS to FV (DFVFO and DFVFS). Values of p≤0.05 were considered significant. Results: 52 (44.4%) skulls (65 sides, 29 on the right and 36 on the left) presented FV, being 63.46% females and 36.53% males. 33.3% of FV were unilateral and 11.1% were bilateral. The FV were mostly oval (50.7%) and round (49.3%) types. Mean diameter of FV was 3.56±0.7mm, FO 7.88±1.16mm, FS 4.01±0.39mm, DFVFO 8.18±1.09mm and DFVFS was 14.54±1.68mm. Only FO (p=0.009) and FS (p=0.001) had significant differences between genres, and DFVFO had among sides (p=0.021). Conclusions: FV has a high incidence in Northeast Brazil, predominantly in females on the left side with oval and round types. Its relation with other foramina showed differences among genres and sides. This shows the relevance of the FV study to minimize the risk of iatrogenic injury during surgical interventions in this region.