Rarinthorn Samrid, Joanna Jaworek-Troć, Tomasz Gładysz, Jerzy A Walocha, Joe Iwanaga, R Shane Tubbs
{"title":"A Y-shaped sphenoidal sinus septum: a case report.","authors":"Rarinthorn Samrid, Joanna Jaworek-Troć, Tomasz Gładysz, Jerzy A Walocha, Joe Iwanaga, R Shane Tubbs","doi":"10.5115/acb.24.284","DOIUrl":"10.5115/acb.24.284","url":null,"abstract":"<p><p>The sphenoidal sinus septum is one of the most important landmarks during endonasal endoscopic transsphenoidal operations. During routine coronal sectioning of the face, we found a variant Y-shaped septum in the sphenoidal sinus of a female cadaver. This unusual septum was found between two sections (anterior and posterior sections) and located inferior to the pituitary gland. The sphenoid sinus was divided into three chambers by the septum, <i>i.e.</i>, right, middle, and left. During endoscopic surgery, surgeons should be aware of these variations. To our knowledge, this report documents the first Y-shaped septum of the sphenoidal sinus. Such information can be helpful for surgeons.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":"303-305"},"PeriodicalIF":1.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12178702/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143021622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michal Benes, Vladislav Bartak, Jiri Uhlik, Tomas Novotny, Aneta Rybakova, David Kachlik, Vojtech Kunc
{"title":"Surgical anatomy of the anterior musculocapsular complex of the hip: a macroscopic and microscopic anatomical reappraisal.","authors":"Michal Benes, Vladislav Bartak, Jiri Uhlik, Tomas Novotny, Aneta Rybakova, David Kachlik, Vojtech Kunc","doi":"10.5115/acb.24.329","DOIUrl":"10.5115/acb.24.329","url":null,"abstract":"<p><p>This study aimed to delineate the macroscopic and microscopic topography of muscles surrounding the anterior aspect of the hip joint and the underlaying joint capsule. Seven fresh-frozen cadavers were bilaterally dissected as per study protocol. Eleven hip joints were evaluated macroscopically, while three hip joints underwent histological analysis. Additionally, twenty hip bones and femurs were examined for the osseous morphology near the anterior portion of the articulating surfaces. Macroscopically, the rectus femoris muscle contributed to the articular capsule exclusively through its reflected head. The iliocapsularis and iliopsoas muscles were in direct contact with the articular capsule. Although the iliocapsularis muscle was adherent to the capsule throughout its whole course, the iliopsoas muscle was connected to the capsule through the iliopectineal bursa. Microscopically, different spatial thickness of the capsule was observed, with the thicker regions corresponding to the capsular ligaments. Osseous landmarks, relevant to the course of the iliopsoas muscle, included the iliopsoas notch and a groove for the psoas major muscle. Furthermore, split of the anterior inferior iliac spine and the \"subspine\" were constant findings corresponding to the origin of the direct head of the rectus femoris and the iliocapsularis muscles, and attachment of the medial band of the iliofemoral ligament, respectively. On the head of the femur, the Poirier's facet (35.0%), the Allen's fossa (60.0%), and the so-called plaque (50.0%) were observed. Conclusively, we introduce the concept of a four-layered anterior musculocapsular complex of the hip, aiming to aid the orthopaedic surgeon in both hip replacement and preservation procedures.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":"155-165"},"PeriodicalIF":1.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12178697/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Apurba Patra, Anju Chaudhary, Adil Asghar, Priti Chaudhary
{"title":"Reliability of Sedillot's triangle as a potential anatomical landmark for central venous catheter insertion: insights from cadaveric study.","authors":"Apurba Patra, Anju Chaudhary, Adil Asghar, Priti Chaudhary","doi":"10.5115/acb.24.271","DOIUrl":"10.5115/acb.24.271","url":null,"abstract":"<p><p>Sedillot's triangle (ST), formed between the sternal and clavicular heads of sternocleidomastoid (SCM) muscle, is often used as an anatomical landmark for internal jugular vein (IJV) cannulation, but its reliability has been questioned. This cadaveric study aimed to evaluate the effectiveness of ST in locating IJV. Dissections were performed on 23 adult cadavers (46 sides). ST was exposed, and a pin was inserted at its apex to assess its relationship with IJV. Dimensions of ST and distance between apex and IJV were measured (only in cases with unsuccessful puncture), along with IJV diameter at the apex. Showed that 92.00% of sides had a fully formed ST, while 8.00% (all left-sided) lacked a gap between the SCM heads. On right side, the needle corresponded directly with IJV in 19 (82.60%) cases, but missed laterally and medially in two (8.69%) cases each. On left side, successful IJV puncture occurred in 11 (61.11%) cases, with lateral and medial misses in five (27.77%) and two (11.11%) respectively. The mean height and width of ST was 64.30±7.86 mm and 20.08±6.26 mm on right side and 63.95±7.28 mm and 15.56±9.91 mm on left side. IJV diameter at the apex was significantly higher in male and on right side. Overall, right ST proved to be a reasonably reliable landmark for successful central venous catheter. However, anatomical variability, particularly on left side, suggests that caution should be exercised, and additional methods such as ultrasound guidance may improve the accuracy and safety of IJV cannulation using this approach.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":"149-154"},"PeriodicalIF":1.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12178693/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David Ezra, R Shane Tubbs, Joe Iwanaga, Deborah Alperovitch-Najenson, Arthur Yosef, Israel Hershkovitz, James Cray
{"title":"Factors associated with osteophytosis on the sella turcica: related morphological and morphometrical aspects.","authors":"David Ezra, R Shane Tubbs, Joe Iwanaga, Deborah Alperovitch-Najenson, Arthur Yosef, Israel Hershkovitz, James Cray","doi":"10.5115/acb.25.080","DOIUrl":"https://doi.org/10.5115/acb.25.080","url":null,"abstract":"<p><p>The sella turcica, part of the sphenoid bone located at the base of the skull, is associated with multiple important neurovascular structures. Hence, a detailed knowledge of its variations is critical to clinicians who interpret imaging or surgeons who operate in this region. Our aim was to better understand the pathology of osteophytosis, often found related to the sella turcica. The study sample (n=1,083, human skulls) was obtained from the skeleton collection housed in the Natural History Museum, Cleveland, OH, USA. All skulls were assessed for osteophytes in the sella turcica region (defined as an overgrowth of 1 mm or more). Morphometrical measurements included skull length, width, and thickness, correlated to seller osteophytes. Cranial shape was related to the presence of osteophytes. Greater prevalence was seen in the brachycephalic skulls, with a significantly higher ratio of presence in older people (79.6%) compared to a younger population (26.4%); greater prevalence was also observed in female skulls with a composite thickness of the frontal, parietal and occipital bones. A multifactorial analysis using a logistic regression model defined a statistically significant model, by explaining 37.0% of the variance in osteophyte presence and correctly classifying 77.2% of the cases. Female skulls were 1.76 times more likely to display osteophytes of the sella turcica. Increasing age and increased skull thickness were associated with an enhanced likelihood of exhibiting osteophytes involving the sella turcica, thereby, the shape of the skull, age, and sex partially explain the variations observed for the presence of sella turcica osteophytes.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144473816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The maxillary vein: an anatomical narrative review with clinical implications for oral and maxillofacial surgeons.","authors":"Kazzara Raeburn, Yohei Takeshita, Hiroaki Takakura, Shogo Kikuta, Yuki Kunisada, Soichiro Ibaragi, Rarinthorn Samrid, Marios Loukas, R Shane Tubbs, Joe Iwanaga","doi":"10.5115/acb.25.024","DOIUrl":"https://doi.org/10.5115/acb.25.024","url":null,"abstract":"<p><p>The maxillary vein, despite its clinical significance, remains underexplored in anatomical literature. It plays a crucial role in venous drainage of the maxillofacial region and is closely associated with surgical procedures such as sagittal split ramus osteotomy, mandibuloplasty, and condylar or parotid surgeries. Due to its variable anatomy and proximity to critical structures, the maxillary vein poses a risk of significant hemorrhage if injured. Its small size and deep location make preoperative identification challenging, especially without contrast-enhanced imaging. Embryologically, the maxillary vein originates from the primitive maxillary vein and develops through complex anastomoses with other craniofacial veins. Anatomical studies have revealed several variations, including the presence of accessory mandibular foramina and unusual venous connections, which may increase surgical risk. Understanding the detailed anatomy and potential variations of the maxillary vein is essential for minimizing complications and improving surgical outcomes. Despite its importance, more anatomical and clinical research is needed to better define its course, variations, and implications in oral and maxillofacial surgery.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144245956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laura García-Orozco, Jhonatan Duque-Colorado, Mariano Del Sol
{"title":"Evaluating relation terms and comparison in <i>Terminologia Anatomica</i>: a study on supreme.","authors":"Laura García-Orozco, Jhonatan Duque-Colorado, Mariano Del Sol","doi":"10.5115/acb.25.056","DOIUrl":"https://doi.org/10.5115/acb.25.056","url":null,"abstract":"<p><p>The terms of relationship and comparison, which consist of 44 elements grouped as general terms in <i>Terminologia Anatomica</i>, describe the location of anatomical structures and facilitate communication between health professionals and students. During a review in <i>Terminologia Anatomica</i>, the term 'supreme' was found in various structures. However, it is not part of the general terms, which could create confusion when describing and comparing anatomical structures. For this reason, this study aimed to analyze the relevance of supreme and its possible relationship with the superior term. A review of <i>Terminologia Anatomica</i> was conducted to identify structures designated by the adjective \"supreme\" or its Latin equivalent, suprema. The term was then categorized based on anatomical context. An etymological analysis of supreme and superior revealed that both terms stem from the Latin root super, meaning above or over. However, over time, each term evolved with distinct meanings. In <i>Terminologia Anatomica</i>, 'superior' is used as a comparative adjective for a higher position relative to another structure. 'Supreme' is a superlative adjective that indicates the highest level and the designation of structures in a principal position relative to others. Due to inconsistent usage, we suggest including 'supreme' in <i>Terminologia Anatomica</i> and unifying its application. Specifically, it should be limited to structures where terms such as superior, middle, and inferior are applied and when describing structures that occupy a principal position relative to others. In this sense, we suggest changing the supreme, superior and inferior nuchal lines to superior, middle and inferior nuchal lines, respectively.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anatomical variations of the hepatic veins: an observational study from a single cadaveric lab in South India.","authors":"Rajaneesh Shivamurthy Tolahunase, Pauline Shanthi, Suganthy Rabi","doi":"10.5115/acb.24.258","DOIUrl":"https://doi.org/10.5115/acb.24.258","url":null,"abstract":"<p><p>Modern hepatic resections need to consider hepatic vein variations to reduce surgical complications. In this study we determined the variation in the branching pattern of hepatic veins by modified luminal casting technique and evaluated the association of the hepatic vein variations with morphological variations of the liver. The morphological features of thirty formalin-fixed livers were noted. The branching pattern of the hepatic veins was studied by retrograde injection of silicone into the hepatic veins through the inferior vena cava. According to the descriptions given by previous studies, the right, middle, left hepatic veins, and combined middle and left hepatic venous branching patterns were categorized. The data was analyzed statistically. The predominant hepatic vein patterns were De Cecchis type I right hepatic vein (30%), Neumann type I middle hepatic vein (67%), and Reichert type I left hepatic vein (70%). A common trunk for the middle and left hepatic vein was present in 60% and Wind's type II was more common (30%) followed by type I (20%) and type III (10%). While there was no association between the De Cecchis and Wind types, 90% of the conical-shaped livers exhibited type II middle/left hepatic vein pattern of Wind's classification. The present study also observed a rare variation of an accessory inferior left hepatic vein.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Histopathological changes and inflammatory and cell death pathways in the lungs of Balb/c mice with pneumonia induced by different concentrations of <i>Staphylococcus aureus</i>.","authors":"Celso Eduardo Silva Fortunato, Renata Pereira Alves, Karinne Spirandelli Carvalho Naves, Monica Cassel","doi":"10.5115/acb.24.304","DOIUrl":"https://doi.org/10.5115/acb.24.304","url":null,"abstract":"<p><p>Pneumonia is often triggered by a bacterial infection, in many cases <i>Staphylococcus aureus</i>. Although this bacterium is found in the microbiota of healthy individuals, it can proliferate and release toxins in the respiratory tract, causing tissue damage by activating the inflammatory process and cell death pathways and resulting in serious complications. In this study, pneumonia was induced in Balb/c mice using different concentrations of <i>S. aureus</i> to evaluate histopathological changes and progression with increasing concentrations of colony forming units (CFUs) as well as their interactions with inflammatory and cell death markers. Hematoxylin and eosin histological techniques and peroxidase immunohistochemistry were utilized to investigate outcomes that included edema and disruption of the bronchiole and blood vessel walls. Alveolar collapse and bronchiolar hyperplasia were also analyzed and were statistically significant, but only hyperplasia varied between the two groups that received intermediate concentrations of CFU (10<sup>7</sup> and 10<sup>8</sup>, respectively) to induce pneumonia. In the immunohistochemical analysis, progression of apoptosis was observed in groups that received up to 10<sup>8</sup> CFU, along with a probable predominance of autophagy and reduction in IL-6 in the group that received the highest concentration (10<sup>9</sup> CFU). These characteristics appear to indicate an attempt to preserve and reuse cells when high CFU concentrations are present and eliminate infected cells at lower concentrations. The data from this present study contribute to understanding crosstalk between cell death pathways and the inflammatory response in <i>S. aureus</i>-induced pneumonia, and may assist in future intervention strategies.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morphology and morphometry of pudendal nerve in East Indian population with surgical implications: a cadaveric study.","authors":"Grace Suganya, Biswabina Ray, Yashu Bharadwaj","doi":"10.5115/acb.25.012","DOIUrl":"https://doi.org/10.5115/acb.25.012","url":null,"abstract":"<p><p>Pudendal nerve entrapment clinically has a wide spectrum of presentation ranging from urinary to anorectal and sexual dysfunction. The caliber of the pudendal nerve should be matched with calibre of donor nerve for a successful nerve transfer. Hence, we aimed at evaluating the morphology, dimensions of pudendal nerve at various sites of entrapment and certain trajectory distances to approach the pudendal nerve surgically. The study was conducted at Department of Anatomy at a tertiary care hospital and medical college. A detailed dissection of pudendal nerve was done and the morphology and morphometry of the pudendal nerve were studied in 10 cadavers with equal sex distribution (5 male and 5 female). Crosssectional area (CSA) of the pudendal nerve at various sites of entrapment (piriformis, sacrospinous ligament, sacrotuberous ligament, and at Alcock's canal) and trajectory distance of pudendal nerve from various anatomical landmarks (ischial spine, sacral tuberosity, pubic symphysis, and inferior pubic ramus) were measured using digital vernier caliper. The CSA of pudendal nerve was more at piriformis (4.04 mm<sup>2</sup>) it decreased as the nerve travelled further to Alcock's canal (0.35 mm<sup>2</sup>). On comparison of the CSA and trajectory distances of the pudendal nerve with sex and sides there was no statistically significant difference. Morphologically, formation variation of pudendal nerve from S<sub>3</sub> and S<sub>4</sub> roots and trunk variations were also observed. These findings of the present study would help in various surgeries of perineum like nerve transfer, in placement of Richters stitch, transobturator tapes, pudendal nerve block etc.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The muscular branching characteristics of the deep peroneal nerve in adult human cadavers.","authors":"Kıvanç Goral, Tania Marur","doi":"10.5115/acb.25.017","DOIUrl":"https://doi.org/10.5115/acb.25.017","url":null,"abstract":"<p><p>The aim of this study was to investigate the number of muscular branches and muscular branching characteristics of the deep peroneal nerve to the muscles. In this study, a total of 16 lower extremities from 8 male cadavers fixed with formalin, ethanol, and glycerol solution were dissected and the number of muscular branches of the deep peroneal nerve and muscular branching features were investigated. It was observed that 31.5% of the muscular branches given by the deep peroneal nerve came to the tibialis anterior muscle, 28.9% to the extensor digitorum longus muscle, 25.5% to the extensor hallucis longus muscle, 11.4% to the peroneus tertius muscle and 2.7% to the peroneus longus muscle. Muscular branches to the tibialis anterior muscle, extensor digitorum longus muscle, and peroneus tertius muscle were generally originated from the deep peroneal nerve in the proximal 1/3 of the leg. Muscular branches to the extensor hallucis longus muscle arose usually from the deep peroneal nerve in the middle 1/3 of the leg. We think that the data we obtained in our research will reduce the rate of important complications such as neurovascular injury in interventions planned for the deep peroneal nerve and the structures adjacent to the nerve.</p>","PeriodicalId":7831,"journal":{"name":"Anatomy & Cell Biology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144126638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}