Search

Copyright of Journal of Ankara University Faculty of Medicine / Ankara Üniversitesi Tip Fakültesi Mecmuasi is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: Communications between the median, ulnar and musculocutaneous nerves in the arm, forearm and hand were reported in adult cadaveric and electrophysiological studies. These communicant branches may lead conflicting clinical and electrodiagnostic outcomes. While there are many studies on adult patients or cadavers, there is poor regarding foetuses. The present study was conducted to examine the frequencies of these communications and their coexistences in human foetuses.Materials and Methods: Anterior aspect of the forearms of 50 foetuses (29 females, 20 males, and 1 unknown) were dissected bilaterally (totally 100 sides) for this purpose.Results: Communications between the median and the musculocutaneous nerves in the arm were found unilaterally in 4%. Communications from the median to the ulnar nerve in the forearm were encountered unilaterally in 22%, and bilaterally in 12%; from the ulnar to the median nerve in the hand unilaterally in 28%, and bilaterally in 12%. Coexistence of all these variations was not encountered in any foetus. But coexistence of two different types of communicant branch was encountered in 4%.Conclusions: Precise knowledge of nerve communications, variations and rate of coexistences in foetuses may have significance for clinicians and researchers dealing with subjects in foetal period. [ABSTRACT FROM AUTHOR]

OBJECTIVES: This study aimed to compare the right and left sides of the carotid foramen (CF) to determine its precise location according to certain anatomical landmarks. MATERIALS and METHODS: Twenty human dry skulls were included in the study. A digital caliper and a digital image analysis software were used to obtain direct anatomical numerical values. Then, the same parameters on dry skulls were assessed with computed tomography (CT). RESULTS: CF was found to be round shaped (62.5%), oval shaped (32.5%), and tear-drop shaped (5%). In all cases, the position of CF was seen as just postero-laterally of the foramen lacerum. According to the jugular foramen, CF was seen to be anterior in 85% and antero-medial in 15% of the cases. Regarding the morphometric values of the surface area, the length and width of CF were observed to be 37.86±11.24 mm2, 8.02±1.09 mm, and 6.86±0.90 mm at direct anatomical measurements and 39.69±10.07 mm2, 7.89±1.14 mm, and 6.41±0.90 mm at CT, respectively. The angles between the supramastoid crest-CF-zygoma root and the supramastoid crest-CF-mastoid process were determined as 37.11±6.87° and 42.22±6.40° at direct anatomical measurements and 36.59±4.94° and 43.71±4.55° at CT, respectively. CONCLUSION: A significant difference in sides was not observed in relation with the numerical data of CF obtained from CT or from direct anatomical measurements of dry skulls. Moreover, a significant difference was not found between radiological and direct anatomical measurements. Therefore, precise radiological assessment of this region by an experienced neuroradiologist may be assumed as a fundamental need for successful surgeries of the skull base, in addition to thorough anatomical knowledge of neurootologists and neurosurgeons. [ABSTRACT FROM AUTHOR]

Purpose: It has been demonstrated that the coronary artery anomalies (CAAs) are generally asymptomatic. However, some cases can cause severe life threatening events. As coronary computed tomography angiography (CCTA) has emerged as a non-invasive alternative to invasive coronary angiography for the evaluation of coronary anatomy, the prevalence of CAAs in CCTA may more closely reflect the true prevalence in the general population. So we aimed to review and determine the prevalence of CAAs and variants retrospectively in patients who underwent CCTA at our center., Methods: Reports of 1802 patients who underwent CCTA at the radiology department of our university hospital were traced for CAAs. At least two independent investigators reviewed the images, which were selected for further assessment prior to final classification., Results: One hundred and fifty two anomalies in 152 patients (8.44 %) were encountered. Origin of any coronary artery from the pulmonary trunk in 1 (0.06 %), origin of LMCA from right sinus in 1 (0.06 %), origin of right coronary artery (RCA) from left sinus in 5 (0.28 %), origin of left anterior descending artery (LAD) from right sinus in 2 (0.11 %), origin of circumflex branch (RCx) of LMCA from right sinus in 6 (0.33 %), origin of RCx from RCA in 4 (0.22 %), origin of any coronary artery from the ascending aorta in 2 (0.11 %), split RCA in 5 (0.28 %), RCx and left marginal artery from the first diagonal artery in 1 (0.06 %), myocardial bridging in 123 (6.83 %) and fistula in 2 (0.11 %) were detected as CAAs., Conclusion: The prevalence of CAAs observed in this study was similar to the literature. CCTA can clearly visualize the anomalous origin, course and termination of the coronary artery., Competing Interests: Declaration of competing interest İsmail Yağmurhan Gilan and Kaan Esen have equally contributed in this study. This study was produced from İsmail Yağmurhan Gilan's doctoral thesis., (Copyright © 2024. Published by Elsevier Inc.)