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Öğe The 2D and 3D MR arthrographic description of aponeurotic expansion of supraspinatus tendon and biceps tendon anomaly in a large patient cohort(Springer, 2024) Guclu, Derya; Ogul, Hayri; Unlu, Elif Nisa; Tuncer, Kutsi; Kose, Mehmet; Kantarci, Mecit; Eren, SuatObjectiveTo describe the aponeurotic expansion of supraspinatus tendon (AEST) and biceps tendon abnormalities with magnetic resonance (MR) arthrographic examinations and determine their prevalence in patients, we performed a high-resolution 3D direct MR arthrography.Materials and methodsThis was a retrospective study of 700 shoulder MR arthrograms performed between May 2010 and January 2022. Extension in the coronal plane of an AEST on 3D fat-suppressed T1-weighted volumetric interpolated breath-hold examination (VIBE) MR arthrography was identified. Based on its morphology, the AEST on MR arthrography was divided into four subtypes: absence of tendinous thickness in the bicipital synovial surface or intra-synovial tendon-like structure in the bicipital groove, thin and flat tendinous thickness & GE;1 mm of bicipital synovium, oval tendinous structure less than half the size of the adjacent biceps tendon, oval tendinous structure more than half the size of the adjacent biceps tendon, and oval tendinous structure larger than the adjacent biceps tendon. Based on its origin and termination, aponeurotic expansions can be divided into three subtypes: proximal pulley zone, middle humeral neck zone, and distal myotendinous junction zone. Association with the biceps synovium of the AEST was categorized into three types: intra-synovial, extra-synovial, and trans-synovial.ResultsAn AEST in the anterior shoulder joint in 3D VIBE MR arthrography images was identified in 63 (9%) of 700 arthrograms. The most common arthrographic type of AEST was type 1-this was detected in 39 of 63 patients. The most common course type of the AEST was anteriorly midline. The most common distal insertion type was at the tenosynovial sheath of the long head of the biceps tendon (LHBT) in the middle humeral neck zone-this was detected in 31 of 63 patients. There were only 10 MR arthrograms biceps tendon abnormality, including 4 biceps agenesis and 6 split ruptures.ConclusionA 2D and high-resolution 3D MR arthrography can demonstrate the anatomical detail around the bicipital groove and facilitate the differentiation between a biceps tendon anomaly and an AEST. On high-resolution 3D MR arthrographic images, the AEST tends to be in the anterior midline and anteromedial portions of the biceps synovium with intra-synovial, extra-synovial, and trans-synovial courses and its three different insertion types.Öğe The 2D and 3D MR arthrographic description of aponeurotic expansion of supraspinatus tendon and biceps tendon anomaly in a large patient cohort (Jul, 10.1007/s00256-023-04409-1, 2023)(Springer, 2024) Guclu, Derya; Ogul, Hayri; Unlu, Elif Nisa; Tuncer, Kutsi; Kose, Mehmet; Kantarci, Mecit; Eren, Suat[No abstract available]Öğe Agenesis of Common Carotid Artery: Unusual Vascular Anomaly of the Neck(Sage Publications Inc, 2023) Ogul, Hayri; Gozgec, Elif; Kantarci, Mecit[No abstract available]Öğe Anomalous origin of the temporopolar artery from the internal carotid artery and aneurysms at the temporopolar and internal carotid arteries: a very rare case report(Springer France, 2023) Ay, Mutlu; Ogul, Hayri; Kantarci, MecitThe temporopolar artery (TPA) originates directly from the sphenoidal segment of the middle cerebral artery (MCA). Its originating from the M1 segment of the MCA as a branch of the anterior temporal artery is not uncommon. However, internal carotid artery origination is a very rare variation of the TPA. Here, we report a very rare case of the variant origin of the TPA and the presence of saccular aneurysm at this origin.Öğe Fenestration aneurysm of the basilar artery(Ma Healthcare Ltd, 2023) Ay, Mutlu; Ogul, Hayri; Kantarci, Mecit[No abstract available]Öğe Intersection syndrome(Elsevier France-Editions Scientifiques Medicales Elsevier, 2024) Tas, Nurmuhammed; Ogul, Hayri; Kantarci, Mecit[No abstract available]Öğe Magnetic resonance arthrographic demonstration of extension of labral defects in paraglenoid labral cysts(Assoc Medica Brasileira, 2023) Kaya, Serhat; Ogul, Hayri; Koksal, Ali; Koru, Ahmet; Kiziloglu, Alper; Kantarci, MecitOBJECTIVE: This study aimed to investigate the extension of labral tears associated with paraglenoid labral cysts by magnetic resonance arthrography. METHODS: The magnetic resonance and magnetic resonance arthrography images of patients with paraglenoid labral cysts who presented to our clinic between 2016 and 2018 were examined. In patients with paraglenoid labral cysts, the location of the cysts, the relation between the cyst and the labrum, the location and extent of glenoid labrum damage, and whether there was contrast medium passage into the cysts were investigated. The accuracy of magnetic resonance arthrographic information was evaluated in patients undergoing arthroscopy. RESULTS: In this prospective study, a paraglenoid labral cyst was detected in 20 patients. In 16 patients, there was a defect in the labrum adjacent to the cyst. Seven of these cysts were adjacent to the posterior superior labrum. In 13 patients, there were contrast solution leak into the cyst. For the remaining seven patients, no contrast-medium passage was observed in the cyst. Three patients had sublabral recess anomalies. Two patients had rotator cuff muscle denervation atrophy accompanying the cysts. The cysts of these patients were larger compared to those of the other patients. CONCLUSION: Paraglenoid labral cysts are frequently associated with the rupture of the adjacent labrum. In these patients, symptoms are generally accompanied by secondary labral pathologies. Magnetic resonance arthrography can be successfully used not only to demonstrate the association of the cyst with the joint capsule and labrum, but also to reliably demonstrate the presence and extension of labral defects.Öğe Posterior shoulder labrocapsular structures in all aspects; 3D volumetric MR arthrography study(British Inst Radiology, 2021) Ogul, Hayri; Taydas, Onur; Sakci, Zakir; Altinsoy, Hasan Baki; Kantarci, MecitPathologies of the posterior labrocapsular structures of the shoulder joint are far less common than anterior labrocapsuloligamentous lesions. Most of these pathologies have been associated with traumatic posterior dislocation. A smaller portion of the lesions include posterior extension of superior labral anteroposterior lesions, posterior superior internal impingement, and damage to the posterior band of the inferior glenohumeral ligament. Labrocapsular anatomic variations of the posterior shoulder joint can mimic labral pathology on conventional MR and occasionally on MR arthrographic images. Knowledge of this variant anatomy is key to interpreting MR images and studying MR arthrography of the posterior labrocapsular structure to avoid misdiagnosis and unnecessary surgical procedures. In this article, we review normal and variant anatomy of the posterior labrocapsular structure of the shoulder joint based on MR arthrography and discuss how to discriminate normal anatomic variants from labrocapsular damage.Öğe Spontaneous fracture of the ulna secondary to radial osteochondroma(Ma Healthcare Ltd, 2024) Senocak, Eyup; Tas, Nurmuhammed; Ogul, Hayri; Kantarci, Mecit[No abstract available]Öğe Spontaneous resolution of lumbar disc herniation(Elsevier Espana Slu, 2023) Koksal, Ali; Ayyildiz, Veysel; Ogul, Hayri; Kantarci, Mecit[No abstract available]Öğe Vertebral involvement of Erdheim-Chester disease: an unusual mimic of vertebral metastasis(Ma Healthcare Ltd, 2023) Ogul, Hayri; Guzel, Yunus; Tuncer, Kutsi; Cankaya, Bahar; Kantarci, Mecit[No abstract available]
