Anatomic Variations of the Nose and Paranasal Sinuses in Saudi Population
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MR Imaging of the Orbital Apex
J Korean Radiol Soc 2000;4 :26 9-0 6 1 6 MR Imaging of the Orbital Apex: An a to m y and Pat h o l o g y 1 Ho Kyu Lee, M.D., Chang Jin Kim, M.D.2, Hyosook Ahn, M.D.3, Ji Hoon Shin, M.D., Choong Gon Choi, M.D., Dae Chul Suh, M.D. The apex of the orbit is basically formed by the optic canal, the superior orbital fis- su r e , and their contents. Space-occupying lesions in this area can result in clinical d- eficits caused by compression of the optic nerve or extraocular muscles. Even vas c u l a r changes in the cavernous sinus can produce a direct mass effect and affect the orbit ap e x. When pathologic changes in this region is suspected, contrast-enhanced MR imaging with fat saturation is very useful. According to the anatomic regions from which the lesions arise, they can be classi- fied as belonging to one of five groups; lesions of the optic nerve-sheath complex, of the conal and intraconal spaces, of the extraconal space and bony orbit, of the cav- ernous sinus or diffuse. The characteristic MR findings of various orbital lesions will be described in this paper. Index words : Orbit, diseases Orbit, MR The apex of the orbit is a complex region which con- tains many nerves, vessels, soft tissues, and bony struc- Anatomy of the orbital apex tures such as the superior orbital fissure and the optic canal (1-3), and is likely to be involved in various dis- The orbital apex region consists of the optic nerve- eases (3). -
Septation of the Sphenoid Sinus and Its Clinical Significance
1793 International Journal of Collaborative Research on Internal Medicine & Public Health Septation of the Sphenoid Sinus and its Clinical Significance Eldan Kapur 1* , Adnan Kapidžić 2, Amela Kulenović 1, Lana Sarajlić 2, Adis Šahinović 2, Maida Šahinović 3 1 Department of anatomy, Medical faculty, University of Sarajevo, Čekaluša 90, 71000 Sarajevo, Bosnia and Herzegovina 2 Clinic for otorhinolaryngology, Clinical centre University of Sarajevo, Bolnička 25, 71000 Sarajevo, Bosnia and Herzegovina 3 Department of histology and embriology, Medical faculty, University of Sarajevo, Čekaluša 90, 71000 Sarajevo, Bosnia and Herzegovina * Corresponding Author: Eldan Kapur, MD, PhD Department of anatomy, Medical faculty, University of Sarajevo, Bosnia and Herzegovina Email: [email protected] Phone: 033 66 55 49; 033 22 64 78 (ext. 136) Abstract Introduction: Sphenoid sinus is located in the body of sphenoid, closed with a thin plate of bone tissue that separates it from the important structures such as the optic nerve, optic chiasm, cavernous sinus, pituitary gland, and internal carotid artery. It is divided by one or more vertical septa that are often asymmetric. Because of its location and the relationships with important neurovascular and glandular structures, sphenoid sinus represents a great diagnostic and therapeutic challenge. Aim: The aim of this study was to assess the septation of the sphenoid sinus and relationship between the number and position of septa and internal carotid artery in the adult BH population. Participants and Methods: A retrospective study of the CT analysis of the paranasal sinuses in 200 patients (104 male, 96 female) were performed using Siemens Somatom Art with the following parameters: 130 mAs: 120 kV, Slice: 3 mm. -
Morfofunctional Structure of the Skull
N.L. Svintsytska V.H. Hryn Morfofunctional structure of the skull Study guide Poltava 2016 Ministry of Public Health of Ukraine Public Institution «Central Methodological Office for Higher Medical Education of MPH of Ukraine» Higher State Educational Establishment of Ukraine «Ukranian Medical Stomatological Academy» N.L. Svintsytska, V.H. Hryn Morfofunctional structure of the skull Study guide Poltava 2016 2 LBC 28.706 UDC 611.714/716 S 24 «Recommended by the Ministry of Health of Ukraine as textbook for English- speaking students of higher educational institutions of the MPH of Ukraine» (minutes of the meeting of the Commission for the organization of training and methodical literature for the persons enrolled in higher medical (pharmaceutical) educational establishments of postgraduate education MPH of Ukraine, from 02.06.2016 №2). Letter of the MPH of Ukraine of 11.07.2016 № 08.01-30/17321 Composed by: N.L. Svintsytska, Associate Professor at the Department of Human Anatomy of Higher State Educational Establishment of Ukraine «Ukrainian Medical Stomatological Academy», PhD in Medicine, Associate Professor V.H. Hryn, Associate Professor at the Department of Human Anatomy of Higher State Educational Establishment of Ukraine «Ukrainian Medical Stomatological Academy», PhD in Medicine, Associate Professor This textbook is intended for undergraduate, postgraduate students and continuing education of health care professionals in a variety of clinical disciplines (medicine, pediatrics, dentistry) as it includes the basic concepts of human anatomy of the skull in adults and newborns. Rewiewed by: O.M. Slobodian, Head of the Department of Anatomy, Topographic Anatomy and Operative Surgery of Higher State Educational Establishment of Ukraine «Bukovinian State Medical University», Doctor of Medical Sciences, Professor M.V. -
Lab Manual Axial Skeleton Atla
1 PRE-LAB EXERCISES When studying the skeletal system, the bones are often sorted into two broad categories: the axial skeleton and the appendicular skeleton. This lab focuses on the axial skeleton, which consists of the bones that form the axis of the body. The axial skeleton includes bones in the skull, vertebrae, and thoracic cage, as well as the auditory ossicles and hyoid bone. In addition to learning about all the bones of the axial skeleton, it is also important to identify some significant bone markings. Bone markings can have many shapes, including holes, round or sharp projections, and shallow or deep valleys, among others. These markings on the bones serve many purposes, including forming attachments to other bones or muscles and allowing passage of a blood vessel or nerve. It is helpful to understand the meanings of some of the more common bone marking terms. Before we get started, look up the definitions of these common bone marking terms: Canal: Condyle: Facet: Fissure: Foramen: (see Module 10.18 Foramina of Skull) Fossa: Margin: Process: Throughout this exercise, you will notice bold terms. This is meant to focus your attention on these important words. Make sure you pay attention to any bold words and know how to explain their definitions and/or where they are located. Use the following modules to guide your exploration of the axial skeleton. As you explore these bones in Visible Body’s app, also locate the bones and bone markings on any available charts, models, or specimens. You may also find it helpful to palpate bones on yourself or make drawings of the bones with the bone markings labeled. -
Macroscopic Anatomy of the Nasal Cavity and Paranasal Sinuses of the Domestic Pig (Sus Scrofa Domestica) Daniel John Hillmann Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1971 Macroscopic anatomy of the nasal cavity and paranasal sinuses of the domestic pig (Sus scrofa domestica) Daniel John Hillmann Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Animal Structures Commons, and the Veterinary Anatomy Commons Recommended Citation Hillmann, Daniel John, "Macroscopic anatomy of the nasal cavity and paranasal sinuses of the domestic pig (Sus scrofa domestica)" (1971). Retrospective Theses and Dissertations. 4460. https://lib.dr.iastate.edu/rtd/4460 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. 72-5208 HILLMANN, Daniel John, 1938- MACROSCOPIC ANATOMY OF THE NASAL CAVITY AND PARANASAL SINUSES OF THE DOMESTIC PIG (SUS SCROFA DOMESTICA). Iowa State University, Ph.D., 1971 Anatomy I University Microfilms, A XEROX Company, Ann Arbor. Michigan I , THIS DISSERTATION HAS BEEN MICROFILMED EXACTLY AS RECEIVED Macroscopic anatomy of the nasal cavity and paranasal sinuses of the domestic pig (Sus scrofa domestica) by Daniel John Hillmann A Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Subject: Veterinary Anatomy Approved: Signature was redacted for privacy. h Charge of -^lajoï^ Wor Signature was redacted for privacy. For/the Major Department For the Graduate College Iowa State University Ames/ Iowa 19 71 PLEASE NOTE: Some Pages have indistinct print. -
MBB: Head & Neck Anatomy
MBB: Head & Neck Anatomy Skull Osteology • This is a comprehensive guide of all the skull features you must know by the practical exam. • Many of these structures will be presented multiple times during upcoming labs. • This PowerPoint Handout is the resource you will use during lab when you have access to skulls. Mind, Brain & Behavior 2021 Osteology of the Skull Slide Title Slide Number Slide Title Slide Number Ethmoid Slide 3 Paranasal Sinuses Slide 19 Vomer, Nasal Bone, and Inferior Turbinate (Concha) Slide4 Paranasal Sinus Imaging Slide 20 Lacrimal and Palatine Bones Slide 5 Paranasal Sinus Imaging (Sagittal Section) Slide 21 Zygomatic Bone Slide 6 Skull Sutures Slide 22 Frontal Bone Slide 7 Foramen RevieW Slide 23 Mandible Slide 8 Skull Subdivisions Slide 24 Maxilla Slide 9 Sphenoid Bone Slide 10 Skull Subdivisions: Viscerocranium Slide 25 Temporal Bone Slide 11 Skull Subdivisions: Neurocranium Slide 26 Temporal Bone (Continued) Slide 12 Cranial Base: Cranial Fossae Slide 27 Temporal Bone (Middle Ear Cavity and Facial Canal) Slide 13 Skull Development: Intramembranous vs Endochondral Slide 28 Occipital Bone Slide 14 Ossification Structures/Spaces Formed by More Than One Bone Slide 15 Intramembranous Ossification: Fontanelles Slide 29 Structures/Apertures Formed by More Than One Bone Slide 16 Intramembranous Ossification: Craniosynostosis Slide 30 Nasal Septum Slide 17 Endochondral Ossification Slide 31 Infratemporal Fossa & Pterygopalatine Fossa Slide 18 Achondroplasia and Skull Growth Slide 32 Ethmoid • Cribriform plate/foramina -
Anatomic Variations of Sphenoid Sinus Pneumatization in a Sample of Turkish Population: MRI Study
Int. J. Morphol., 32(4):1140-1143, 2014. Anatomic Variations of Sphenoid Sinus Pneumatization in a Sample of Turkish Population: MRI Study Variaciones Anatómicas de la Neumatización del Seno Esfenoidal en una Muestra de Población Turca: Estudio por Resonancia Magnética Ozdemir Sevinc*; Merih Is**; Cagatay Barut*** & Aliriza Erdogan**** SEVINC, O.; IS, M.; BARUT, C. & ERDOGAN, A. Anatomic Variations of Sphenoid Sinus Pneumatization in a Sample of Turkish Population: MRI Study. Int. J. Morphol., 32(4):1140-1143, 2014. SUMMARY: There are a number of variations regarding morphometric anatomy and degree of pneumatization of the sphenoid sinus. In our study, we planned to examine and show the differences of pneumatization of the sphenoid sinus particularly to guide the neurosurgeon during transsphenoidal surgery. Sagittal T1-weighed spin-echo Magnetic Resonance Images (MRIs) of 616 adult individuals (406 women and 210 men) were analyzed, retrospectively. According to the collected data from our study, the most common type of the sphenoid sinus was the sellar type (83%; n=511) for the whole study group. Of the 616 individuals 16.6% (n=102) had presellar type and 0.5% (n=3) had conchal type of sphenoid sinus. Preoperative detailed detection of the anatomical characteristics of sphenoid sinus is essential. A thorough information obtained from studies of the regional anatomy and awareness of its variability can provide a safe and accurate transsphenoidal and extended endoscopic skull base approaches. KEY WORDS: Paranasal sinus; Pneumatization; Sphenoid sinus; Transsphenoidal approach. INTRODUCTION The sphenoid sinus is the most hidden and first years of life, it extends backward into the presellar area inaccessible of the paranasal sinuses which is approached and gradually expands into the area below and behind the by neurosurgeons via many surgical routes through basis sella turcica, and reaches its full size during adolescence cranii (Hewaidi & Omami, 2008). -
Atlas of the Facial Nerve and Related Structures
Rhoton Yoshioka Atlas of the Facial Nerve Unique Atlas Opens Window and Related Structures Into Facial Nerve Anatomy… Atlas of the Facial Nerve and Related Structures and Related Nerve Facial of the Atlas “His meticulous methods of anatomical dissection and microsurgical techniques helped transform the primitive specialty of neurosurgery into the magnificent surgical discipline that it is today.”— Nobutaka Yoshioka American Association of Neurological Surgeons. Albert L. Rhoton, Jr. Nobutaka Yoshioka, MD, PhD and Albert L. Rhoton, Jr., MD have created an anatomical atlas of astounding precision. An unparalleled teaching tool, this atlas opens a unique window into the anatomical intricacies of complex facial nerves and related structures. An internationally renowned author, educator, brain anatomist, and neurosurgeon, Dr. Rhoton is regarded by colleagues as one of the fathers of modern microscopic neurosurgery. Dr. Yoshioka, an esteemed craniofacial reconstructive surgeon in Japan, mastered this precise dissection technique while undertaking a fellowship at Dr. Rhoton’s microanatomy lab, writing in the preface that within such precision images lies potential for surgical innovation. Special Features • Exquisite color photographs, prepared from carefully dissected latex injected cadavers, reveal anatomy layer by layer with remarkable detail and clarity • An added highlight, 3-D versions of these extraordinary images, are available online in the Thieme MediaCenter • Major sections include intracranial region and skull, upper facial and midfacial region, and lower facial and posterolateral neck region Organized by region, each layered dissection elucidates specific nerves and structures with pinpoint accuracy, providing the clinician with in-depth anatomical insights. Precise clinical explanations accompany each photograph. In tandem, the images and text provide an excellent foundation for understanding the nerves and structures impacted by neurosurgical-related pathologies as well as other conditions and injuries. -
Anatomy, Histology, and Embryology
ANATOMY, HISTOLOGY, 1 AND EMBRYOLOGY An understanding of the anatomic divisions composed of the vomer. This bone extends from of the head and neck, as well as their associ- the region of the sphenoid sinus posteriorly and ated normal histologic features, is of consider- superiorly, to the anterior edge of the hard pal- able importance when approaching head and ate. Superior to the vomer, the septum is formed neck pathology. The large number of disease by the perpendicular plate of the ethmoid processes that involve the head and neck area bone. The most anterior portion of the septum is a reflection of the many specialized tissues is septal cartilage, which articulates with both that are present and at risk for specific diseases. the vomer and the ethmoidal plate. Many neoplasms show a sharp predilection for The supporting structure of the lateral border this specific anatomic location, almost never of the nasal cavity is complex. Portions of the occurring elsewhere. An understanding of the nasal, ethmoid, and sphenoid bones contrib- location of normal olfactory mucosa allows ute to its formation. The lateral nasal wall is visualization of the sites of olfactory neuro- distinguished from the smooth surface of the blastoma; the boundaries of the nasopharynx nasal septum by its “scroll-shaped” superior, and its distinction from the nasal cavity mark middle, and inferior turbinates. The small su- the interface of endodermally and ectodermally perior turbinate and larger middle turbinate are derived tissues, a critical watershed in neoplasm distribution. Angiofibromas and so-called lym- phoepitheliomas, for example, almost exclu- sively arise on the nasopharyngeal side of this line, whereas schneiderian papillomas, lobular capillary hemangiomas, and sinonasal intesti- nal-type adenocarcinomas almost entirely arise anterior to the line, in the nasal cavity. -
Radiographic Evaluation of the Nasal Cavity, Paranasal Sinuses and Nasopharynx for Sleep-Disordered Breathing
RADIOGRAPHIC EVALUATION OF THE NASAL CAVITY, PARANASAL SINUSES AND NASOPHARYNX FOR SLEEP-DISORDERED BREATHING Dania Tamimi, BDS, DMSc Diplomate, American Board of Oral and Maxillofacial Radiology ROLE OF CBCT • To discover the anatomic truth DISCOVER FACTORS THAT • Lead to Abnormal Upper Airway Anatomy • Increase Resistance • Cause Turbulent or Laminar Air Flow • Increase Collapsibility • Airway lumen • Soft tissue component • Osseous component CHECKLIST – EVALUATE FOR • Nasal obstruction • Sinus pathology • Nasopharynx pathology • Oropharyngeal morphologic predisposing factors and pathology • Maxillary and mandible morphologic predisposing factors • TMJs • Hyoid bone position • Evaluate for Head position (false positive or negative) • C-spine for pathology • Cranial base CHECKLIST – EVALUATE FOR • Nasal obstruction • Sinus pathology • Nasopharynx pathology • Oropharyngeal morphologic predisposing factors and pathology • Maxillary and mandible morphologic predisposing factors • TMJs • Hyoid bone position • Evaluate for Head position (false positive or negative) • C-spine for pathology • Cranial base NASAL CAVITY AND SINUSES • Patency of external and internal nasal valves • Morphology of nasal septum • Morphology and symmetry of turbinates • Patency of sinus drainage pathways • Presence of sinonasal pathology THE NOSE HAS THREE MAJOR FUNCTIONS 1. Breathing 2. Olfaction 3. Conditioning the air THE NASAL VALVE • Turbulence distributes the air in the nasal fossa for conditioning and olfaction. • When there is stenosis of the nasal valve, -
Sinonasal Tract and Nasopharyngeal Adenoid Cystic Carcinoma: a Clinicopathologic and Immunophenotypic Study of 86 Cases
Head and Neck Pathol DOI 10.1007/s12105-013-0487-3 ORIGINAL RESEARCH Sinonasal Tract and Nasopharyngeal Adenoid Cystic Carcinoma: A Clinicopathologic and Immunophenotypic Study of 86 Cases Lester D. R. Thompson • Carla Penner • Ngoc J. Ho • Robert D. Foss • Markku Miettinen • Jacqueline A. Wieneke • Christopher A. Moskaluk • Edward B. Stelow Received: 14 July 2013 / Accepted: 23 August 2013 Ó Springer Science+Business Media New York (outside the USA) 2013 Abstract ‘Primary sinonasal tract and nasopharyngeal (n = 44), with a mean size of 3.7 cm. Patients presented adenoid cystic carcinomas (STACC) are uncommon equally between low and high stage disease: stage I and II tumors that are frequently misclassified, resulting in inap- (n = 42) or stage III and IV (n = 44) disease. Histologi- propriate clinical management. Eighty-six cases of STACC cally, the tumors were invasive (bone: n = 66; neural: included 45 females and 41 males, aged 12–91 years (mean n = 47; lymphovascular: n = 33), composed of a variety 54.4 years). Patients presented most frequently with of growth patterns, including cribriform (n = 33), tubular obstructive symptoms (n = 54), followed by epistaxis (n = 16), and solid (n = 9), although frequently a com- (n = 23), auditory symptoms (n = 12), nerve symptoms bination of these patterns was seen within a single tumor. (n = 11), nasal discharge (n = 11), and/or visual symp- Pleomorphism was mild with an intermediate N:C ratio in toms (n = 10), present for a mean of 18.2 months. The cells containing hyperchromatic nuclei. Reduplicated tumors involved the nasal cavity alone (n = 25), naso- basement membrane and glycosaminoglycan material was pharynx alone (n = 13), maxillary sinus alone (n = 4), or commonly seen. -
Anatomy and Physiology of the Nose and Paranasal Sinuses
Anatomy and Physiology of the Nose and Paranasal Sinuses PD Dr. med. Basile N. Landis Unité de Rhinologie-Olfactologie Service d’Oto-Rhino-Laryngologie et de Chirurgie cervico- faciale, Hôpitaux Universitaires de Genève, Suisse Anatomy External Nose Large Nose Thin Nose Huizing, de Groot, Functional reconstructive nasal surgery, 2003, Georg Thieme Verlag Anatomy External Nose Numerous anatomical variations! Huizing, de Groot, Functional reconstructive nasal surgery, 2003, Georg Thieme Verlag Anatomy External Nose 3 Parts: Huizing, de Groot, Functional reconstructive nasal surgery, 2003, Georg Thieme Verlag Anatomy External Nose Anatomy External Nose Anatomy External Nose Innervation V1 V1 GG V2 V2 V3 V3 Trigeminal nerve Anatomy External Nose Blood Supply Prometheus, Springer Verlag Anatomy Blood Supply – Anastomoses ! Prometheus, Springer Verlag Furuncle of the nose Cause: • Skin infection of the nasal vestibule / tip of the nose. Usually due to hair follicle Symptoms: • Swelling, Pain, Redness Danger: • Septic emboli via the angular vein / cavernous sinus drainage. Risk of cavernous sinus thrombosis Treatement: • Antibiotics i.v.; Rest; Incision-Drainage Cavernous sinus thrombosis Diagnostics: • MRI Cause: • Infection of region drained by the venous Treatement: system reaching the cavernous sinus. • Surgery of the infectious focus • Propagation of an infection by contiguity • AB i.v. (sphenoid sinus) • Steroids (controversy) Symptoms: • Anticoagulation • Fever, Headache, Neurological deficits VERY HIGH morbidity and mortality !!! Anatomy