In cases with extensive lateral extension to infratemporal fossa with or without intracranial involvement, a midfacial degloving approach or weber fergusons approach gave a good exposure for tumour clearance. This cavity contains several of the structures responsible for supplying the face and head. Some authors refer to the itf as the region below the greater wing of the sphenoid bone 14, 27, lateral to the medial pterygoid muscle and the lateral pterygoid plate. Its showing you communication with other cavity of skull. The temporal fossa is a shallow depression on the temporal lines and one of the be massive marks on the skull.
It is a potential space in the side of the head, and is paired on either side. Start studying temporal and infratemporal fossa anatomy. Jan 11, 2016 neuroanatomy season two the head and neck. As previously mentioned, the pterygoid plexus overlying the lateral pterygoid muscle is present within the fossa. The infratemporal fossa is an irregularly shaped cavity, situated below and medial to the zygomatic arch. The types of structures contained within the infratemporal fossa include muscles, nerves, and blood vessels. Jun 08, 2018 in 1961, fairbanksbarbosa was the first to report an infratemporal fossa itf approach, indicated for advanced tumors of the maxillary sinus. Mar 19, 2020 the temporal fossa serves as a site of origin for the temporal muscle. A dense, variable pterygoid plexus of veins is formed in the infratemporal fossa. Vc trigeminal mandibular division vc in deep infratemporal fossa vc in pterygopalatine fossa vc emerging from foramen ovale vc enlarged v ganglia. This is a brief video tutorial on the infratemporal fossa. The fossa is shaped irregularly and is situated below and medial to the zygomatic arch.
Body head and neck areasorgans infratemporal fossa contents. Instant anatomy is a specialised web site for you to learn all about human anatomy of the body with diagrams, podcasts and revision questions. Pterygopalatine ganglion and vb in fossa viewed from right viewed from above back subscribe. Transtemporal approaches described by fisch, preauricular approaches described by schramm and sekhar, and transmaxillary approaches described by terz, janecka, and cocke validated the efficacy of and. The infratemporal fossa type a approach allows safe access to the infralabyrinthine temporal bone, petrous apex, mandibular fossa, and posterior infratemporal fossa. Chorda tympani a branch of the facial nerve cn vii. Mar 31, 2015 infratemporal fossa the infratemporal fossa is an irregularly shaped space deep and inferior to the zygomatic arch, deep to the ramus of the mandible, and posterior to the maxilla. The infratemporal fossa, also known as infratemporal or zygomatic region, is a space normally not explorable because it is medial to the mandibular branch. The borders or walls of the infratemporal fossa are formed by bone and soft tissue, and they are as following. Infratemporal article about infratemporal by the free. The temporal fossa is superior to the infratemporal fossa. Study 77 temporal, infratemporal, pterygopalatine fossa flashcards from adrian k.
The skull base anatomy of the infratemporal fossa is complex, requiring neurosurgeons and head and neck surgeons to have a precise knowledge of 3d details of. The temporal fossa is bounded by a few anatomical landmarks, anteriorly the frontal process of the zygomatic bone, superiorly and posteriorly the temporal lines, and inferiorly the zygomatic arch. The infratemporal fossa is located below the temporal fossa and is continuous with it. Instant anatomy is a specialised web site for you to learn all about human anatomy of. Anatomy based corridors to the infratemporal fossa. The infratemporal space also termed the infra temporal space or the infra temporal portion of the deep temporal space is a fascial space of the head and neck sometimes also termed fascial spaces or tissue spaces. Temporal, infratemporal, pterygopalatine fossa anatomy ant. The infratemporal fossa is the space underneath the base of the skull, between ramus of the mandible and the side wall of the pharynx. Upon performing an angiogram, the physician notes significant stenosis of the internal carotid artery. The temporal fossa is made up of the temporal bone, the parietal bone, the frontal bone and the sphenoid bone.
As endoscopic sinus surgery ess has progressed over the last 10 years, new techniques have been introduced to aid with the resection of tumors in regions which traditionally have been difficult to access. A 60yearold man with a history significant for arteriosclerosis and hypertension presents with recent onset of periodic syncopal episodes. Anatomy, head and neck, infratemporal fossa statpearls ncbi. Gross anatomy the infratemporal fossa is the space between the skull base, lateral pharyn. The occipital bones, including, temporal bone, sphenoid bone, parietal bone and the frontal bone put up to its concave wall. Infratemporal fossa an overview sciencedirect topics. The infratemporal fossa borders contents teachmeanatomy. Instant anatomy head and neck vessels arteries middle.
May 26, 2016 the pterygopalatine fossa ppf is an obscure but important space in the deep face that needs to be evaluated very carefully in the realm of head and neck imaging, since a myriad of infective, inflammatory, and neoplastic conditions can affect it. It follows the anatomical course of the lingual nerve and provides taste innervation to the anterior 23 of the. Endonasal transpterygoid approach to the infratemporal fossa sbccp. The infratemporal fossa communicates frontally with the tuberosity of the maxillary bone, superiorly with the temporal region, posteriorly with the parotid lodge, medially with the pterygopalatine fossa, and inferiorly with the pharynx fig. The infratemporal fossa anatomy, from an endoscopic standpoint, is poorly understood. Microsurgical anatomy of the infratemporal fossa request pdf.
This video showing you boundaries of infratemporal fossa. The temporal fossa is located in the temporal region and communicates inferiorly with infratemporal fossa deep to the zygomatic arch gross anatomy. The skull base anatomy of the infratemporal fossa is complex, requiring neurosurgeons and head and neck surgeons to have a precise knowledge of 3d details of the topography and contents of the region. The infratemporal fossa is a complex space of the face that lies posterolateral to the maxillary sinus and many important nerves and vessels traverse it. Neoplastic processes involving the infratemporal fossa may originate from the tissues in the region, but more often are the result of extension from neighboring structures. Temporal fascia medical animation gross anatomy of head and neck, dr g bhanu prakash duration. There is widespread, valveless communication between the pterygoid plexus, cavernous sinus and veins in the face, orbit, pharynx, larynx, etc. Jun 08, 2018 an infratemporal fossa approach is a complex procedure that involves significant time, effort, and cost. Fascia deep of neck hyoglossus and its relations hyoid bone and attachments infratemporal fossa jugular foramen larynx mandible meninges. Hn30 the infratemporal fossa spine general anatomy podcasts sp1 vertebral column autonomics. September 21, 2012 also at 59 minute you said that maxillary artery is a branch from the internal carotid artery, i think it is from external carotid artery.
Metastatic lesions located in the region are rarely encountered. Nov 02, 2016 temporal fossa anatomy, contents and pathology in anatomy tags temporal fossa, temporal fossa anatomy, temporal fossa contents, tigeminal nerve november 2, 2016 1514 views hamza khan the temporal fossa is a shallow depression on the temporal lines and one of the be massive marks on the skull. Pdf tumors of the infratemporal fossa researchgate. Together via a gap deep to the zygomatic arch it interacts with the temporal fossa. It originates from the superior, anterior and posterior borders of the temporal fossa and resides within its concavity as the muscle fibers move towards their insertion point, which lies under the zygomatic arch. Instant anatomy head and neck areasorgans infratemporal fossa. Bhanu prakash usmle, fmge and neet pg 18,075 views. Infratemporal fossa definition of infratemporal fossa by. Although controversy exists about the exact boundaries of the infratemporal fossa, we define it as the area bounded anteriorly by the posterolateral aspect of the maxilla and the inferior orbital fissure fig. Learn vocabulary, terms, and more with flashcards, games, and other study tools. It is superior to the infratemporal fossa and terminating beneath the level of the zygomatic arch.
Videos produced in 2016 at the faculty of medicine, university of british columbia, canada. Anatomy of the infratemporal fossa continued dont be a. The infratemporal fossa is a space that exists below the temporal fossa. Infratemporal definition of infratemporal by the free. The infratemporal fossa is the space between the skull base, lateral pharyngeal wall, and the ramus of mandible. Infratemporal fossa uams department of anatomy and neurobiology. Endoscopic resection of tumors involving the maxillary sinus.
The fossa is actually open to the neck posteroinferiorly and in. Mar 28, 2020 the infratemporal fossa is a cavity with an irregular shape located below the zygomatic arch, also known as the cheek bone. Containing over vibrant, fullcolour images, teachmeanatomy is a comprehensive anatomy encyclopaedia presented in a visuallyappealing, easytoread format created by a team of doctors and medical students, each topic combines anatomical knowledge with highyield clinical pearls, seamlessly bridging the gap between scholarly learning and. Its also called the parapharyngeal space or lateral pharyngeal space. Its an irregular space situated deep to the ramus and coronoid process of mandible with multiple communications. It communicates with the temporal fossa through the interval between deep to the zygomatic arch and superficial to the cranial bones. Head and neck areasorgans infratemporal fossa instant anatomy. May 22, 2009 all its branches pass through the infratemporal fossa, including those motor branches passing to the muscles of mastication that we looked at earlier making the infratemporal fossa a great landmark for finding and remembering where all these nerves are. The infratemporal fossa is an irregularly shaped cavity, situated below and medial to the zygomatic arch boundaries are defined anteriorly by the infratemporal surface of the maxilla and the ridge which descends from its zygomatic process. Endoscopic approaches are more appropriate than conventional approaches if the goal is palliation. If you would like a large, unwatermarked image for your web page or blog, please purchase the appropriate license. When seen on the skull without the soft tissues, these two anatomical landmarks can be seen to communicate with one another. It is not fully enclosed by bone in all directions, and it contains superficial muscles that are visible during dissection after removing skin and fascia.
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