Surgical and Radiologic Anatomy最新文献

{"title":"Suprascapular nerve anatomy and its implication for approaches to peripheral nerve stimulation of its sensory branching: a morphometric cadaveric study.","authors":"Janice Wang, Brock Halling, Dugan Hult, Mayank Gupta, Bryan G Beutel","doi":"10.1007/s00276-025-03692-y","DOIUrl":"https://doi.org/10.1007/s00276-025-03692-y","url":null,"abstract":"<p><strong>Background: </strong>The suprascapular notch (SNo) is used to guide lead placement during peripheral nerve stimulation (PNS) of the suprascapular nerve (SNe) for refractory shoulder pain. Understanding branching patterns of the SNe can help determine the most effective site for lead placement to improve coverage and effective stimulation.</p><p><strong>Methods: </strong>Ninety-three formalin-embalmed cadaveric shoulders were dissected and a morphometric analysis was conducted. The course and initial branch point of the SNe relative to the superior transverse scapular ligament (STSL) at the SNo were described. The width and depth of the SNo, and the diameter of the SNe within the SNo, were measured. Comparisons were performed between donor sex, laterality, and age.</p><p><strong>Results: </strong>The SNe branched proximal to the SNo in 15% of shoulders, directly at the SNo in 54%, and distal to the SNo in 31%. The SNe occupied the medial third of the SNo in 15%, middle third in 59%, and lateral third in 26%. The SNe branched a mean of 1.5 mm from the SNo. The mean depth of the SNo was 5.8 mm and the mean width was 7.8 mm. The mean diameter of the SNe was significantly greater in males (2.6 mm) than females (2.2 mm) (P < 0.001).</p><p><strong>Conclusions: </strong>The main branching of the SNe tends to occur proximal to, or directly under, the STSL and in the middle third of the SNo. This knowledge can help guide clinicians when placing PNS leads under fluoroscopic or ultrasound guidance to achieve maximum stimulatory coverage.</p><p><strong>Level of evidence: </strong>III.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"181"},"PeriodicalIF":1.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144745810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anatomy of the oblique vein of the left atrium: contribution of microCT analysis of human hearts.","authors":"Anaïs Delgove, Richard Walton, Nestor Pallares-Lupon, Valéry Ozenne, Marion Constantin, Marine Arnaud, Ewen Le Quilliec, Michel Haïssaguerre, Mélèze Hocini, Pierre Jaïs, Nicolas Derval, Thomas Pambrun, Olivier Bernus, Josselin Duchâteau","doi":"10.1007/s00276-025-03691-z","DOIUrl":"https://doi.org/10.1007/s00276-025-03691-z","url":null,"abstract":"<p><strong>Introduction: </strong>The oblique vein of the left atrium (OVLA), also known as the vein of Marshall, is an embryonic remnant of interest to cardiac electrophysiologists. The aim of this cadaveric study was to describe the anatomy of the OVLA and its relationship with the left atrial wall using micro-CT.</p><p><strong>Material and methods: </strong>The OVLA was selectively injected with a baryum-gelatin mixture, then the specimen was bathed in a Lugol's solution and imaged with micro-CT at an isotropic resolution of 42 µm. In addition to qualitative descriptions of the relationship between the vein and the surrounding musculature, quantitative measures of the veins' dimensions were obtained.</p><p><strong>Results: </strong>Eighteen hearts were analyzed. The mean length of the OVLA main axis was 36.5 ± 19.4 mm. Analysis of OVLA segmentations showed heterogeneous arborization. The main axis, oblique towards the ridge, was variable in length. It was short in 3 specimens and reached the roof of the atrium in 4 cases. The main branch received short collateral branches localized near the pulmonary veins (N = 5), or long collaterals from the posterior wall (N = 3). Myocardial tissue was consistently found at different level surrounding the vein, separated from the compact endocardium by fatty tissue.</p><p><strong>Discussion: </strong>This is the first anatomical study of the oblique vein of the left atrium using micro-CT after selective injection. It enabled very high-resolution analysis of the OVLA and showed heterogeneous lengths and arborizations, up to the roof or posterior wall of the left atrium. The veins colocalizes with non-compact muscular tissue relevant to cardiac electrophysiology.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"182"},"PeriodicalIF":1.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144745809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Total colonic supply via the inferior mesenteric artery.","authors":"Anand Dhatt, Leandro Cardarelli-Leite, Ravjot Dhatt, David Dix, Collin Barker, Manraj K S Heran","doi":"10.1007/s00276-025-03690-0","DOIUrl":"10.1007/s00276-025-03690-0","url":null,"abstract":"<p><strong>Purpose: </strong>To present a unique case of vascular supply to the gastrointestinal organs as anatomical variants have variable clinical implications and must be recognized to avoid adverse outcomes.</p><p><strong>Methods: </strong>Describe the embryological origin of vascular supply of gastrointestinal organs and present a few variants described in the literature.</p><p><strong>Results: </strong>On angiogram, patient was found to have total colonic supply via the inferior mesenteric artery. This is a rare anatomical variant which altered management in this child with massive lower gastrointestinal bleed due to sacral neuroblastoma metastasis and mucormycosis colitis.</p><p><strong>Conclusion: </strong>Vascular anatomic variants have clinical implications that can alter management.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"180"},"PeriodicalIF":1.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144718973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Morphometric features, variability and clinical significance of coracoclavicular tuberosity.","authors":"Yalçın Akbulut, Asli Beril Karakas, Burhan Yarar, Mukadder Sunar","doi":"10.1007/s00276-025-03684-y","DOIUrl":"https://doi.org/10.1007/s00276-025-03684-y","url":null,"abstract":"","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"179"},"PeriodicalIF":1.4,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144700208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cone beam computed tomographic evaluation of temporal crest canal in the Turkish population.","authors":"Oya Törün, Nihat Laçin","doi":"10.1007/s00276-025-03678-w","DOIUrl":"https://doi.org/10.1007/s00276-025-03678-w","url":null,"abstract":"<p><strong>Background: </strong>The temporal crest, a prominent ridge descending from the coronoid process to the third molar region, defines the medial boundary of the retromolar triangle and plays a pivotal role in evaluating the temporal crest canal (TCC). The TCC, an uncommon variant of the mandibular canal, often originates posterior to the temporal crest and extends anteriorly, conveying the buccal nerve. Using cone-beam computed tomography (CBCT), clinicians can trace the TCC's path relative to the temporal crest. This relationship is critical in the retromolar triangle, where surgical interventions such as sagittal split ramus osteotomies or block graft harvesting occur.</p><p><strong>Methods: </strong>CBCT images of 1056 patients (2112 sides) consulted to Department of Oral and Maxillofacial Surgery between the years 2020-2024 had been evaluated. Sagittal and axial sections were analyzed to see if there was temporal crest canal and specified the side of it.</p><p><strong>Results: </strong>The data reveals a low but significant presence of TCC in both genders (4.6% in females, 5.1% in males), with a statistically significant association between left and right sides (p = 0.000). Females exhibit a greater tendency for bilateral TCC (45.5% vs. 28.6% in males).</p><p><strong>Conclusions: </strong>Unrecognized TCCs near the crest convey risk of nerve injury, perioperative hemorrhage or anesthesia failure and highlight the need for precise imaging. This retrospective study aimed to evaluate the presence of temporal crest canal in terms of gender, age and sides of mandible.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"178"},"PeriodicalIF":1.4,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combination of three rare arterial variations: accessory posterior cerebral artery supplying parieto-occipital branch, duplicate origin of the middle cerebral artery, and accessory anterior cerebral artery (ACA) arising from X-shaped ACA diagnosed by magnetic resonance angiography.","authors":"Akira Uchino, Shunpei Andoh","doi":"10.1007/s00276-025-03688-8","DOIUrl":"https://doi.org/10.1007/s00276-025-03688-8","url":null,"abstract":"<p><strong>Purpose: </strong>To describe a case of three rare cerebral arterial variations: (1) accessory posterior cerebral artery (PCA), (2) duplicate origin of the middle cerebral artery (MCA), and (3) accessory anterior cerebral artery (ACA) diagnosed by magnetic resonance angiography (MRA).</p><p><strong>Methods: </strong>An 80-year-old man with complete right hemiplegia underwent cranial magnetic resonance imaging (MRI) and MRA using a 3-Tesla scanner. MRA was performed using a standard three-dimensional time-of-flight technique.</p><p><strong>Results: </strong>MRI revealed acute infarction of the left frontal lobe. MRA showed occlusion of the anterior branch of the left MCA. Subsequently, transarterial thrombectomy was performed. Six days later, follow-up MRA was performed, and a well-recanalized left MCA was confirmed. In addition, accessory right PCA supplying the parieto-occipital branch of the PCA, duplicate origin of the right MCA, and accessory ACA arising from X-shaped ACA, which is an absent variation of the anterior communicating artery (ACoA), were confirmed.</p><p><strong>Conclusion: </strong>An accessory PCA, which typically supplies the temporal branch of the PCA, usually arises from the ACoA. We diagnosed the first case of a combination of three rare cerebral arterial variations. Careful observation using MRA is important for the detection of rare arterial variations. Volume-rendering MRA images are useful for identifying superimposed arteries.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"176"},"PeriodicalIF":1.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144651034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Persistent trigeminal artery linked with partial duplication of the anterior communicating artery.","authors":"George Triantafyllou, Panagiotis Papadopoulos-Manolarakis, George Tsakotos, Anastasia Triantafyllou, Maria Piagkou","doi":"10.1007/s00276-025-03687-9","DOIUrl":"10.1007/s00276-025-03687-9","url":null,"abstract":"<p><p>Variations of the cerebral arterial circle are frequently observed due to the progressively increasing utilization of diagnostic imaging techniques. Among these variations, the persistence of embryonic vessels, such as the persistent trigeminal artery (PTA), is rare yet holds significant clinical relevance. This presentation details a distinctive case of the PTA coexisting with a partial duplication of the anterior communicating artery (AComA), as identified through magnetic resonance angiography (MRA) in a 41-year-old female patient. The PTA was documented as a vessel linking the basilar artery to the cavernous segment of the left internal carotid artery. The AComA exhibited two branches emanating from the left anterior cerebral artery (LACA), which fused to form a single vessel that anastomosed with the right anterior cerebral artery (RACA). The coexistence of the PTA and AComA variant accentuates the imperative for clinicians to consider such rare anatomical configurations, mainly when performing procedures in proximity to the gasserian ganglion, cavernous sinus, or anterior circulation. The application of three-dimensional imaging remains vital for ensuring precise diagnosis and effective treatment planning.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"174"},"PeriodicalIF":1.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12267363/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144651036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anatomical classification and geometric modeling of the lingual canal in the anterior mandible: a cone-beam computed tomography study in a Northern Chinese population.","authors":"Zhiyu Fang, Wenqi Fu, Guowu Ma, Xianyu Piao, Ni Kou, Jeong-Tae Koh","doi":"10.1007/s00276-025-03685-x","DOIUrl":"https://doi.org/10.1007/s00276-025-03685-x","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to investigate the anatomical variations of the lingual canal in the anterior mandible of the Northern Chinese population using cone-beam computed tomography (CBCT), and to develop a geometric framework that may inform preoperative assessment and provide anatomical reference data for future AI-assisted image analysis and implant planning.</p><p><strong>Methods: </strong>CBCT images from 200 Northern Chinese individuals were analyzed to assess the number, position, diameter, trajectory, and spatial parameters of the lingual canal. Classification was performed based on the canal's location relative to the genial tubercle: superior (SGT) or inferior (IGT). Additionally, canal convergence with the incisive and mandibular canals was recorded, and geometric relationships between key anatomical landmarks were validated.</p><p><strong>Results: </strong>The lingual canal detection rate was 100%, with 90.5% located in the anterior mandible, primarily in the midline or between central and lateral incisors. Fifteen morphological types were identified. Canals in the SGT group were longer and wider, while those in the IGT group were shorter and narrower. In our sample, canals appeared to be positioned more inferiorly and exhibited smaller diameters (~ 0.5 mm) compared to data reported in non-Chinese populations. A geometric model was proposed: [Formula: see text]. Convergence with the incisive canal was 13.4%, and with the mandibular canal, 1.81%.</p><p><strong>Conclusion: </strong>The lingual canal in this population shows anatomical variation and distinct spatial configurations. The proposed geometric model and dataset may support CBCT planning and future AI approaches for detecting and classifying lingual canals.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"177"},"PeriodicalIF":1.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144651033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inferior mesenteric artery dominance in colonic blood supply: a cadaveric case report.","authors":"Warunie Kosgallana, Sasanka Hewagampalage, M J S Jayarathna, Kaushika Gunasekare, Jayampathy Dissanayake","doi":"10.1007/s00276-025-03689-7","DOIUrl":"https://doi.org/10.1007/s00276-025-03689-7","url":null,"abstract":"<p><strong>Purpose: </strong>This case report investigates a rare colonic arterial variant where the superior mesenteric artery (SMA) lacks the right colic artery (RCA) and middle colic artery (MCA), with these arising from the inferior mesenteric artery (IMA) via the Meandering Artery of Moskowitz (MAM). It explores surgical implications and classification challenges of such collaterals.</p><p><strong>Methods: </strong>An elderly South Asian female cadaver was dissected at the Department of Anatomy, Faculty of Medicine, University of Peradeniya, Sri Lanka. The SMA and IMA branching patterns and anastomotic networks were analysed through direct observation, precise measurements, and photographic documentation. Ethical approval was secured with an exemption from the institutional Ethics Review Committee (Protocol No: 2023/EC/72).</p><p><strong>Results: </strong>The SMA, devoid of RCA and MCA, supplied only the terminal ileum, cecum, appendix, and proximal ascending colon via the ileocolic artery. The IMA gave off the left colic artery (LCA) which split into two branches. The left branch perfused the descending colon, while the right, identified as the MAM, ran along the inferior mesenteric vein, passed beneath the ligament of Treitz, and bifurcated into the MCA and RCA. These were integrated into the marginal artery of Drummond along with an accessory LCA from the sigmoid trunk. The arc of Riolan was absent, and a persistent descending colon mesentery was observed.</p><p><strong>Conclusions: </strong>This anomaly demonstrated the IMA compensating the limited SMA supply through the MAM, which altered watershed zones. Such variations may increase the risk of surgical ischemia with preoperative imaging required to optimize surgical outcomes.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"175"},"PeriodicalIF":1.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144651035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new CBCT-based classification of posterior extramural ethmoid cells.","authors":"Yuliya Melnichenko, Sergey Kabak, Nina Savrasova, Joe Iwanaga","doi":"10.1007/s00276-025-03686-w","DOIUrl":"https://doi.org/10.1007/s00276-025-03686-w","url":null,"abstract":"<p><strong>Purpose: </strong>The study aimed to evaluate the prevalence of extramural expansion of posterior ethmoid cells using Cone beam computed tomography (CBCT), as well as to propose anatomical criteria and a classification system for Onodi cells based on their spatial relationship with the sphenoid sinus.</p><p><strong>Methods: </strong>Cone beam computed tomography (CBCT) scans of 513 ENT (Ear, Nose, and Throat) and dental patients of outpatient clinics, 199 men and 314 women, mean age 36 ± 13 years (range: 18-84 years).</p><p><strong>Results: </strong>Several extramural variants of posterior ethmoid (PE) cells were examined, such as sphenoethmoidal cells (where PE cells extend into the sphenoid sinus) and posterior ethmomaxillary cells (characterized by extension into the maxillary sinus). Among sphenoethmoidal cells, the following subtypes were identified: Onodi cells (PE cell extension toward the optic canal), inferolateral sphenoethmoidal cells (inferolateral expansion of PE cells relative to the sphenoid sinus without reaching the optic canal), and supraseptal posterior ethmoid cells (migration of PE cells into the region between the nasal septum and the cribriform plate). Among 513 patients examined, sphenoethmoidal cells were identified in 66 cases (89 cells), demonstrating considerable anatomical diversity. We observed a spectrum of variants that included predominant Onodi cell types (superior [48.2%], superolateral [19.2%], and lateral [18%]), less frequent Onodi forms (superoposterior [11.3%] and intersphenoidal [1.1%]), as well as other sphenoethmoidal variants such as supraseptal and inferolateral cells.</p><p><strong>Conclusion: </strong>Based on the data obtained, we introduce an updated classification of Onodi cells that accounts for their spatial relationship with surrounding structures. Posterior extramural ethmoid cells may pneumatize the sphenoid bone to such an extent that they can be radiologically mistaken for the sphenoid sinus. Accurate differentiation between these structures is crucial, as inflammatory processes may develop independently within either the sphenoid sinus or the sphenoethmoidal cells. Misidentification may lead to inappropriate treatment strategies. Therefore, precise radiological assessment is essential to determine the true origin of inflammation and ensure targeted, effective clinical management.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"173"},"PeriodicalIF":1.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144651019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}