Sonographically Guided Internal Jugular Vein Puncture for Intracranial Endovascular TECHNICAL NOTE Intervention
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1-Anatomy of the Pituitary Gland
Color Code Important Anatomy of Pituitary Gland Doctors Notes Notes/Extra explanation Please view our Editing File before studying this lecture to check for any changes. Objectives At the end of the lecture, students should be able to: ✓ Describe the position of the pituitary gland. ✓ List the structures related to the pituitary gland. ✓ Differentiate between the lobes of the gland. ✓ Describe the blood supply of pituitary gland & the hypophyseal portal system. الغدة النخامية Pituitary Gland (also called Hypophysis Cerebri) o It is referred to as the master of endocrine glands. o It is a small oval structure 1 cm in diameter. o It doubles its size during pregnancy. lactation ,(الحمل) pregnancy ,(الحيض) A women experiences changes in her hormone levels during menstruation But only the pituitary gland will only increase in size during pregnancy .(سن اليأس) and menopause ,(الرضاعة) X-RAY SKULL: LATERAL VIEW SAGITTAL SECTION OF HEAD & NECK Extra Pituitary Gland Position o It lies in the middle cranial fossa. o It is well protected in sella turcica* (hypophyseal fossa) of body of sphenoid o It lies between optic chiasma (anteriorly) & mamillary bodies** (posteriorly). Clinical point: *سرج الحصان Anterior to the pituitary gland is the optic chiasm, so if there was a tumor in the pituitary gland or it was ** Part of hypothalamus enlarged this could press on the chiasm and disrupt the patients vision (loss of temporal field). Extra Pictures The purple part is the sphenoid bone Hypophyseal fossa Pituitary Gland The relations are important Important Relations • SUPERIOR: Diaphragma sellae: A fold of dura mater covers the pituitary gland & has an opening for passage of infundibulum (pituitary stalk) connecting the gland to hypothalamus. -
Anatomical Variants of the Emissary Veins: Unilateral Aplasia of Both the Sigmoid Sinus and the Internal Jugular Vein and Development of the Petrosquamosal Sinus
Folia Morphol. Vol. 70, No. 4, pp. 305–308 Copyright © 2011 Via Medica C A S E R E P O R T ISSN 0015–5659 www.fm.viamedica.pl Anatomical variants of the emissary veins: unilateral aplasia of both the sigmoid sinus and the internal jugular vein and development of the petrosquamosal sinus. A rare case report O. Kiritsi1, G. Noussios2, K. Tsitas3, P. Chouridis4, D. Lappas5, K. Natsis6 1“Hippokrates” Diagnostic Centre of Kozani, Greece 2Laboratory of Anatomy in Department of Physical Education and Sports Medicine at Serres, “Aristotle” University of Thessaloniki, Greece 3Orthopaedic Department of General Hospital of Kozani, Greece 4Department of Otorhinolaryngology of “Hippokration” General Hospital of Thessaloniki, Greece 5Department of Anatomy of Medical School of “National and Kapodistrian” University of Athens, Greece 6Department of Anatomy of the Medical School of “Aristotle” University of Thessaloniki, Greece [Received 9 August 2011; Accepted 25 September 2011] We report a case of hypoplasia of the right transverse sinus and aplasia of the ipsilateral sigmoid sinus and the internal jugular vein. In addition, development of the petrosquamosal sinus and the presence of a large middle meningeal sinus and sinus communicans were observed. A 53-year-old Caucasian woman was referred for magnetic resonance imaging (MRI) investigation due to chronic head- ache. On the MRI scan a solitary meningioma was observed. Finally MR 2D veno- graphy revealed this extremely rare variant. (Folia Morphol 2011; 70, 4: 305–308) Key words: hypoplasia, right transverse sinus, aplasia, ipsilateral sigmoid sinus, petrosquamosal sinus, internal jugular vein INTRODUCTION CASE REPORT Emissary veins participate in the extracranial A 53-year-old Caucasian woman was referred for venous drainage of the dural sinuses of the poste- magnetic resonance imaging (MRI) investigation due to rior fossa, complementary to the internal jugular chronic frontal headache complaints. -
CHAPTER 8 Face, Scalp, Skull, Cranial Cavity, and Orbit
228 CHAPTER 8 Face, Scalp, Skull, Cranial Cavity, and Orbit MUSCLES OF FACIAL EXPRESSION Dural Venous Sinuses Not in the Subendocranial Occipitofrontalis Space More About the Epicranial Aponeurosis and the Cerebral Veins Subcutaneous Layer of the Scalp Emissary Veins Orbicularis Oculi CLINICAL SIGNIFICANCE OF EMISSARY VEINS Zygomaticus Major CAVERNOUS SINUS THROMBOSIS Orbicularis Oris Cranial Arachnoid and Pia Mentalis Vertebral Artery Within the Cranial Cavity Buccinator Internal Carotid Artery Within the Cranial Cavity Platysma Circle of Willis The Absence of Veins Accompanying the PAROTID GLAND Intracranial Parts of the Vertebral and Internal Carotid Arteries FACIAL ARTERY THE INTRACRANIAL PORTION OF THE TRANSVERSE FACIAL ARTERY TRIGEMINAL NERVE ( C.N. V) AND FACIAL VEIN MECKEL’S CAVE (CAVUM TRIGEMINALE) FACIAL NERVE ORBITAL CAVITY AND EYE EYELIDS Bony Orbit Conjunctival Sac Extraocular Fat and Fascia Eyelashes Anulus Tendineus and Compartmentalization of The Fibrous "Skeleton" of an Eyelid -- Composed the Superior Orbital Fissure of a Tarsus and an Orbital Septum Periorbita THE SKULL Muscles of the Oculomotor, Trochlear, and Development of the Neurocranium Abducens Somitomeres Cartilaginous Portion of the Neurocranium--the The Lateral, Superior, Inferior, and Medial Recti Cranial Base of the Eye Membranous Portion of the Neurocranium--Sides Superior Oblique and Top of the Braincase Levator Palpebrae Superioris SUTURAL FUSION, BOTH NORMAL AND OTHERWISE Inferior Oblique Development of the Face Actions and Functions of Extraocular Muscles Growth of Two Special Skull Structures--the Levator Palpebrae Superioris Mastoid Process and the Tympanic Bone Movements of the Eyeball Functions of the Recti and Obliques TEETH Ophthalmic Artery Ophthalmic Veins CRANIAL CAVITY Oculomotor Nerve – C.N. III Posterior Cranial Fossa CLINICAL CONSIDERATIONS Middle Cranial Fossa Trochlear Nerve – C.N. -
Carotid Cavernous Sinus Fistula with Central Retinal Artery Occlusion: a Case Report
Carotid cavernous sinus fistula with central retinal artery occlusion: A case report Suntaree Thitiwichienlert1, Chonwarat Phattarapongdilok1, Paiboon Bawornwattanadilok1 1Department of Ophthalmology, Faculty of Medicine Thammasat University, Thailand Background: A carotid-cavernous sinus fistula (CCF) is an abnormal arteriovenous communication between the cavernous sinus and the internal carotid artery (ICA) and/or external carotid artery (ECA). Central retinal artery occlusion (CRAO) is a rare posterior segment complication occurring as result of traumatic CCF from an ocular hypoperfusion. Case Report: We present a 58-year-old female complaining of acute visual loss, with redness and swelling of the right eye following a motor vehicle accident. Her visual acuity was light perception (PL) in the right eye and 20/40 in the left eye. The intraocular pressure (IOP) was 52 mm Hg in the right eye and normal in the left eye. Eye examinations revealed proptosis, ptosis, complete total ophthalmoplegia and a 5-mm fixed dilated right pupil with relative afferent pupillary defect (RAPD) positive in her right eye. The fundus examination showed CRAO in the right eye. Cerebral angiogra- phy revealed a high flow direct CCF Barrow’s type A. Endovascular treatment was performed using balloon embolization. During the one-year follow-up, the patient had improvement of eye redness, proptosis, and ophthalmoplegia. However, the visual prognosis was poor due to optic atrophy and macular ischemia with the final visual acuity of PL. Conclusion: A complete fundus examination found vision- threatening complications in patients who have traumatic CCFs. Early recognition of CRAO is important in the management of these patients. Conflicts of interest: The authors report no confilcts of interest. -
Non-Pathological Opacification of the Cavernous Sinus on Brain CT
healthcare Article Non-Pathological Opacification of the Cavernous Sinus on Brain CT Angiography: Comparison with Flow-Related Signal Intensity on Time-of-Flight MR Angiography Sun Ah Heo 1, Eun Soo Kim 1,* , Yul Lee 1, Sang Min Lee 1, Kwanseop Lee 1 , Dae Young Yoon 2, Young-Su Ju 3 and Mi Jung Kwon 4 1 Department of Radiology, Hallym University Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 14068, Korea; [email protected] (S.A.H.); [email protected] (Y.L.); [email protected] (S.M.L.); [email protected] (K.L.) 2 Department of Radiology, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 14068, Korea; [email protected] 3 National Medical Center, Seoul 04564, Korea; [email protected] 4 Department of Pathology, Hallym University Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 14068, Korea; [email protected] * Correspondence: [email protected] Abstract: Purpose: To investigate the non-pathological opacification of the cavernous sinus (CS) on brain computed tomography angiography (CTA) and compare it with flow-related signal intensity (FRSI) on time-of-flight magnetic resonance angiography (TOF-MRA). Methods: Opacification of the CS was observed in 355 participants who underwent CTA and an additional 77 participants who underwent examination with three diagnostic modalities: CTA, TOF-MRA, and digital subtraction angiography (DSA). Opacification of the CS, superior petrosal sinus (SPS), inferior petrosal sinus Citation: Heo, S.A.; Kim, E.S.; Lee, Y.; Lee, S.M.; Lee, K.; Yoon, D.Y.; Ju, Y.-S.; (IPS), and pterygoid plexus (PP) were also analyzed using a five-point scale. -
Internal Jugular Venous Ectasia in an Adult Female Surgery Section
DOI: 10.7860/JCDR/2018/37443.12129 Case Report Internal Jugular Venous Ectasia in an Adult Female Surgery Section BHARATHGURU NEDUMARAN1, ARUNKUMAR KRISHNASAMY2 ABSTRACT Jugular phlebectasia refers to a saccular or fusiform dilatation of the neck veins. Phlebectasia involving the jugular veins is an entity which is diagnosed more commonly in children presenting with neck swellings, after ruling out other common causes. It is also called a venous aneurysm, venous ectasia or essential venous dilatation. This can affect all neck veins-internal jugular, external jugular, anterior jugular and superficial communicating veins in order of decreasing frequency. Although, various theories have been proposed, there is no general consensus among various authors regarding the cause for its occurrence. It is predominantly congenital in origin. The diagnosis is based on clinical presentation aided by non-invasive imaging modalities. The venous ectasia is being increasingly recognised due to advances in radiographic imaging. Management is mainly conservative and surgery is required only when complications arise. Here, authors present a case of venous ectasia in an adult female who presented with complaints of the presence of a vague swelling in her neck. Keywords: Cervical swelling, Internal jugular vein, Phlebectasia, Venous aneurysm CASE REPORT A 39-year-old lady presented to Department of Cardiothoracic Surgery with complaints of pain and swelling over the right side of the neck for the past six months. She attributed the pain to an injury sustained six months back. She gave a history of palpitations and occasional breathing difficulty. She had no difficulty in swallowing and no hoarseness of voice. On general examination, she was healthy with no other significant abnormalities. -
Carotid-Cavernous Sinus Fistulas and Venous Thrombosis
141 Carotid-Cavernous Sinus Fistulas and Venous Thrombosis Joachim F. Seeger1 Radiographic signs of cavernous sinus thrombosis were found in eight consecutive Trygve 0. Gabrielsen 1 patients with an angiographic diagnosis of carotid-cavernous sinus fistula; six were of 1 2 the dural type and the ninth case was of a shunt from a cerebral hemisphere vascular Steven L. Giannotta · Preston R. Lotz ,_ 3 malformation. Diagnostic features consisted of filling defects within the cavernous sinus and its tributaries, an abnormal shape of the cavernous sinus, an atypical pattern of venous drainage, and venous stasis. Progression of thrombosis was demonstrated in five patients who underwent follow-up angiography. Because of a high incidence of spontaneous resolution, patients with dural- cavernous sinus fistulas who show signs of venous thrombosis at angiography should be followed conservatively. Spontaneous closure of dural arteriovenous fistulas involving branches of the internal and/ or external carotid arteries and the cavernous sinus has been reported by several investigators (1-4). The cause of such closure has been speculative, although venous thrombosis recently has been suggested as a possible mechanism (3]. This report demonstrates the high incidence of progres sive thrombosis of the cavernous sinus associated with dural carotid- cavernous shunts, proposes a possible mechanism of the thrombosis, and emphasizes certain characteristic angiographic features which are clues to thrombosis in evolution, with an associated high incidence of spontaneous " cure. " Materials and Methods We reviewed the radiographic and medical records of eight consecutive patients studied at our hospital in 1977 who had an angiographic diagnosis of carotid- cavernous sinus Received September 24, 1979; accepted after fistula. -
Dural Venous Channels: Hidden in Plain Sight–Reassessment of an Under-Recognized Entity
Published July 16, 2020 as 10.3174/ajnr.A6647 ORIGINAL RESEARCH INTERVENTIONAL Dural Venous Channels: Hidden in Plain Sight–Reassessment of an Under-Recognized Entity M. Shapiro, K. Srivatanakul, E. Raz, M. Litao, E. Nossek, and P.K. Nelson ABSTRACT BACKGROUND AND PURPOSE: Tentorial sinus venous channels within the tentorium cerebelli connecting various cerebellar and su- pratentorial veins, as well as the basal vein, to adjacent venous sinuses are a well-recognized entity. Also well-known are “dural lakes” at the vertex. However, the presence of similar channels in the supratentorial dura, serving as recipients of the Labbe, super- ficial temporal, and lateral and medial parieto-occipital veins, among others, appears to be underappreciated. Also under-recog- nized is the possible role of these channels in the angioarchitecture of certain high-grade dural fistulas. MATERIALS AND METHODS: A retrospective review of 100 consecutive angiographic studies was performed following identification of index cases to gather data on the angiographic and cross-sectional appearance, location, length, and other features. A review of 100 consecutive dural fistulas was also performed to identify those not directly involving a venous sinus. RESULTS: Supratentorial dural venous channels were found in 26% of angiograms. They have the same appearance as those in the tentorium cerebelli, a flattened, ovalized morphology owing to their course between 2 layers of the dura, in contradistinction to a rounded cross-section of cortical and bridging veins. They are best appreciated on angiography and volumetric postcontrast T1- weighted images. Ten dural fistulas not directly involving a venous sinus were identified, 6 tentorium cerebelli and 4 supratentorial. -
CT Observations Pertinent to Septic Cavernous Sinus Thrombosis
755 CT Observations Pertinent to Septic Cavernous Sinus Thrombosis Jamshid Ahmadi1 The use of high-resolution computed tomography (CT) is described in four patients James R. Keane2 with septic cavernous sinus thrombosis, In all patients CT findings included multiple Hervey D. Segall1 irregular filling defects in the enhancing cavernous sinus. Unilateral or bilateral inflam Chi-Shing Zee 1 matory changes in the orbital soft tissues were also present. Enlargement of the superior ophthalmic vein due to extension of thrombophlebitis was noted in three patients. Since the introduction of antibiotics, septic cavernous sinus thrombosis (throm bophlebitis) has become a rare disease [1-4]. Despite considerable improvement in morbidity and mortality (previously almost universal), it remains a potentially lethal disease. The diagnosis of cavernous sinus thrombophlebitis requires a careful clinical evaluation supplemented with appropriate laboratory and radiographic studies. Current computed tomographic (CT) scanners (having higher spatial and contrast resolution) play an important role in the radiographic evaluation of the diverse pathologiC processes that involve the cavernous sinus [5-7]. The use of CT has been documented in several isolated cases [8-13], and small series [14] dealing with the diagnosis and management of cavernous sinus thrombophlebitis. CT scanning in these cases was reported to be normal in two instances [8 , 10]. In other cases so studied, CT showed abnormalities such as orbital changes [11 , 14], paranasal sinusitis [12], and associated manifestations of intracranial infection [9]; however, no mention was made in these cases of thrombosis within the cavernous sinus itself. Direct CT demonstration of thrombosis within the cavernous sinus has been rarely reported [13]. -
Right Heart Catheter (Internal Jugular Vein Approach) Designation:
11 .au (Affix identification label here) URN: Family name: Right Heart Catheter (Internal Given name(s): Jugular Vein Approach) Address: Date of birth: Sex: M F I Facility: A. Interpreter / cultural needs • Abnormal heart rhythm that continues for a long time. This may need an electric shock to correct. An Interpreter Service is required? Yes No • The carotid artery (in the neck) is accidentally If Yes, is a qualified Interpreter present? Yes No punctured. This may require surgery to repair. © The State of Queensland (Queensland Health), 20 A Cultural Support Person is required? Yes No Rare risks and complications (less than 1%) If Yes, is a Cultural Support Person present? Yes No include: • Infection. This will need antibiotics. B. Condition and treatment • Allergic reaction to the local anaesthetic. This The doctor has explained that you have the following may require medication to treat. Permission to reproduce should be sought from [email protected] condition: (Doctor to document in patient’s own words) • Blood clot in the neck vein. This may need medication to treat. .................................................................................................................................................................... • Embolism. A blood clot may form and break off .................................................................................................................................................................... from the catheter. This is treated with blood This condition requires the following procedure. thinning medication. • (Doctor to document - include site and/or side where Air in the lung cavity. A chest tube may need to relevant to the procedure) be put in to the chest to drain the air. • Damage to the vein in the neck causing bleeding. .................................................................................................................................................................... This may need surgery to repair. The following will be performed: • Air embolism. Oxygen may be given. -
The Hemodynamic Effect of Unilateral Carotid Ligation on the Cerebral Circulation of Man*
THE HEMODYNAMIC EFFECT OF UNILATERAL CAROTID LIGATION ON THE CEREBRAL CIRCULATION OF MAN* HENRY A. SHENKIN, M.D., FERNANDO CABIESES, M.D., GORDON VAN DEN NOORDT, M.D., PETER SAYERS, M.D., AND REUBEN COPPERMAN, M.A. Neurosurgical Service, Graduate Hospital, and Harrison Department of Surgical Re- search, Schools of Medicine, University of Pennsylvania, Philadelphia (Received for publication July ~5, 1950) HE increasing incidence of surgical attack upon vascular anomalies of the brain has renewed interest in the physiological responses of the T cerebral circulation to occlusion of a carotid vessel. This question has been studied in lower animals by Rein, 5 the Schneiders, 6 Bouckaert and Heymans 1 and by the late Cobb Pilcher. 4 However, because of the lack of an adequate technique for measuring the cerebral blood flow and because of the fact that lower animals have a rich intercommunication between the intracerebral and extracerebral circulations, very few data pertinent to human physiology have been accumulated. There are two important points to be established concerning carotid ligation: firstly, its therapeutic effect, that is the degree of fall of pressure in the vessels distal to the ligation, and secondly, its safety, determined by its effect on the cerebral blood flow. Sweet and Bennett, 8 by careful measurement of pressure changes distal to ligation, have provided informa- tion on the former point. It is the latter problem that is the subject of this paper. METHODS The subjects of this study were 4 patients with intracranial arterial aneurysms subjected to unilateral common carotid artery ligation. They ranged in age from 15 to 53 years (Table 1). -
The Condylar Canal and Emissary Vein—A Comprehensive and Pictorial Review of Its Anatomy and Variation
Child's Nervous System (2019) 35:747–751 https://doi.org/10.1007/s00381-019-04120-4 REVIEW ARTICLE The condylar canal and emissary vein—a comprehensive and pictorial review of its anatomy and variation Stefan Lachkar1 & Shogo Kikuta1 & Joe Iwanaga1,2 & R. Shane Tubbs1,3 Received: 6 March 2019 /Accepted: 8 March 2019 /Published online: 21 March 2019 # Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract The condylar canal and its associated emissary vein serve as vital landmarks during surgical interventions involving skull base surgery. The condylar canal serves to function as a bridge of communication from the intracranial to extracranial space. Variations of the condylar canal are extremely prevalent and can present as either bilateral, unilateral, or completely absent. Anatomical variations of the condylar canal pose as a potential risk to surgeons and radiologist during diagnosis as it could be misinterpreted for a glomus jugular tumor and require surgical intervention when one is not needed. Few literature reviews have articulated the condylar canal and its associated emissary vein through extensive imaging. This present paper aims to further the knowledge of anatomical variations and surgical anatomy involving the condylar canal through high-quality computed tomography (CT) images with cadaveric and dry bone specimens that have been injected with latex to highlight emissary veins arising from the condylar canal. Keywords Posterior condylar canal . Anatomical variation . Anatomy . Cadaver . Skull . Emissary vein Introduction the posterior cranial fossa near or in the jugular fossa (Figs. 3 and 4)[2, 7, 9]. Its contents include the condylar emissary The condylar canal serves as a vital passageway for venous vein, which connects the sigmoid sinus or superior jugular circulation (condylar emissary vein) (Fig.