Pathology of lacrimal organs ppt

Anatomy and diseases of lacrimal apparatus There are chronic irritative symptoms.The cornea shows superficial punctate or a filamentary keratitis. - A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 5fbbb0-ZDVk submandibular and lacrimal glands PET-avid: Submandibular, lacrimal, parotid glands Multiple lymph nodes Serum IgG4 = 600 mg/dL (normal <135 mg/dL) Thyroid, aorta, kidneys Lacrimal gland biopsy Fibrosis and dense lymphoplasmacytic infiltrate IgG4 IgG Kappa Lambda Diagnosis = IgG4-Related Disease Clinical / Laboratory Findings Histo-pathology. The lacrimal nucleus supplies the lacrimal gland The sensory nucleus receives taste fibers from the anterior two-thirds of the tongue, the floor of the mouth, and the palate 32. Click to add title Click to add text Second line of text 33. Click to add title Click to add text Second line of text 34 Lacrimal organsLacrimal organs 8. Anatomy of the eyeglobeAnatomy of the eyeglobe 9. Visual pathwayVisual pathway 10. Visual acuityVisual acuity Normal visual acuity is the ability to perceive two different points under the minimal visual angle. Visual angle is the angle, formed by two lines from object edges to the nodal point of the eye Sjogren's syndrome Types: 1ry 2ry : to systemic disease e.g. rheumatoid arthritis. Pathology: autoimmune disease against acinar glands of the conjunctiva, lacrimal gland, and oral mucosa. Lymphocytic infiltrate of lacrimal gland & conjunctival goblet cells → impaired tear secretion and dry eyes. Autoimm une 133

LACRIMAL BONE Smallest and most fragile bone of the face, is situated at the front part of the Medial of the orbit. Contains: a)lacrimal sac and b)naso-lacrimal duct. BORDERS: Anterior- frontal process Posterior- orbital plate of ethmoid Superior- frontal bone Inferior- maxilla 56. ZYGOMATIC BONE • Commonly referred to as the cheekbone The lacrimal glands are serous type exocrine glands that secrete lacrimal fluid onto the surfaces of the conjunctiva and cornea of the eye.. Lacrimal fluid acts to the clean, nourish and lubricate the eyes. It forms tears when produced in excess. In this article, we shall look at the anatomy of the lacrimal glands - their location, neurovascular supply and clinical relevance Ulcers: Local defect of the surface of an organ or tissue produced by the sloughing (shedding) of inflammatory necrotic tissue. seen in autopsies as pleural/pericardial/etc effusion. name for scar tissue in cavit The pituitary gland, known as the master gland, is involved in the homeostatic regulation of numerous body functions as well as in governing reproduction and childbirth. Found at the base of the skull, surrounded by cranial nerves and critical blood vessels, it is composed of the adenohypophysis and neurohypophysis Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Visual Pathway Anatomy PPT External Anatomy Of The Eye Lacrimal Apparatus Of The Eye Anatomy 542863 PPT. Mediated By Relatively Complex Sense Organs Of The Head, Innervated By PPT. Presentation Summary :.

The primary lacrimal gland is the extra-orbital lobe, located just beneath the ear and connected to the eye by means of a long duct that joins the intra-orbital lobe just before reaching the eye (Fig. 2) (Dartt, 2009). The lacrimal gland epithelium is composed of three major cell types: acinar, ductal, and myoepithelial cells I. EYELIDS AND LACRIMAL DRAINAGE SYSTEM A. Benign tumors of the epidermis of the eyelids 1. Papilloma a. Clinical 1 Rough-surfaced elevated, well-defined lesion 2 Can be sessile or pedunculated lesion b. Pathology 1 Finger-like processes of vascularized connective tissue. 2 Hyperkeratosis c Management 1 Observation 2 Complete excision 2 1. Introduction. Ocular surface squamous neoplasia (OSSN) comprises of a spectrum of tumours that affect the ocular surface ranging histologically from intraepithelial neoplasia to different grades of invasive squamous cell carcinoma (Lee and Hirst, 1995).Early lesions of varying size usually occur at the limbus, the area of transition between the cornea and conjunctiva (Lee and Hirst, 1997. The lacrimal gland is an almond-shaped, eccrine secretory gland for tear production. It is located in the superolateral aspect of the orbit, abutting the superior rectus and lateral rectus muscles (Fig. 1 C).The lacrimal gland consists of an orbital lobe (Figs. 1 A and 2 A) and a palpebral lobe (Figs. 1 B and 2 B), which are separated anatomically by the lateral horn of the aponeurosis of the. The lacrimal gland is located in the supratemporal orbit. Two lobes exist, the orbital and the palpebral. The palpebral lobe is visualized easily by upper lid eversion. This eccrine secretory gland is responsible for the formation of the aqueous layer of the tear film. By definition, dacryoadenitis is an inflammatory enlargement of the lacrimal.

PPT - Anatomy and diseases of lacrimal apparatus

  1. SUMMARY: Pleomorphic adenomas (PAs), also known as benign mixed tumors, are common tumors of the parotid gland. These tumors occasionally undergo malignant transformation, with potentially devastating consequences. This case report presents the clinical and radiographic features of a rare case of biopsy proved brain and spinal cord metastases arising from carcinoma ex PA of the parotid gland
  2. erals. Bone marrow is the site of blood cell production
  3. Lacrimal gland localized AL amyloidosis has been previously attributed to deposition of monoclonal immunoglobulin light chains by a local clone of benign plasma cells (Conlon et al. 1991; Leibovitch et al. 2006), but never due to lacrimal gland EMZL. Similarly, in our case, amyloid deposition remained localized to the lacrimal gland
  4. The parotid gland is a major salivary gland in many animals. In humans, the two parotid glands are present on either side of the mouth and in front of both ears.They are the largest of the salivary glands. Each parotid is wrapped around the mandibular ramus, and secretes serous saliva through the parotid duct into the mouth, to facilitate mastication and swallowing and to begin the digestion.
  5. This tumour occurs in various organs in the body such as salivary gland, thyroid and accessory thyroid. The first description of an oncocytic lesion involving the ocular adnexa is credited to Radnót (1941), who reported an oncocytic adenomatous hyperplasia of the lacrimal sac. Adnexal oncocytomas are rare, with most reported cases affecting.

Classification of Eyelid Tumors. As tumors in other organs, tumors of the eyelid can be classified according to their tissue or cell of origin and as benign or malignant.[2,3] Table 1 lists the eyelid tumors according to their origin.Most of the eyelid tumors are of cutaneous origin, mostly epidermal, which can be divided into epithelial and melanocytic tumors Children frequently have a congenital lacrimal duct obstruction. Six to ten percent of all children are born before their tear ducts are open. In adults, a common cause of lacrimal duct obstruction is involution, which is progressive degeneration occurring naturally with advancing age, resulting in shrivelling of organs or tissues Introduction. The conjunctiva is a translucent, vascularized mucous membrane that can be divided into three regions: the bulbar conjunctiva, including the corneo-conjunctival limbus, which covers the sclera in the anterior part of the eyeball; the superior, inferior, and lateral conjunctival fornices; and the palpebral conjunctiva, including the mucocutaneous transitional zone in the lid.

PPT - Restrictive Lung Diseases PowerPoint Presentation

Anatomy of the cranial nerves - SlideShar

  1. the lacrimal and parotid glands and pulmonary regions in a patient with active sarcoidosis. SARCOIDOSIS Treatment Systemic steroids may be necessary in patients with posterior segment disease where vision is threatened, especially if optic nerve is involved. PHACOMATOSES 1. Neurofibromatosi
  2. These glands are oval and display numerous acini. There are chronic irritative symptoms.The cornea shows superficial punctate or a filamentary keratitis. The liver, gallbladder and pancreas are all accessory organs of digestion. Accessory Structures of the Eye Lacrimal apparatus Lacrimal gland- produces lacrimal fluid Lacrimal canals- drains lacrimal fluid from eyes Lacrimal sac- provides.
  3. LECTURER OF PATHOLOGY FACULTY OF MEDICINE 3 types Diffuse lymphatic tissue No capsule present Found in connective tissue of almost all organs Lymphatic nodules No capsule present Oval-shaped masses Found singly or in clusters Lymphatic organs Capsule present and lacrimal glands, lung, thyroid, conjunctiva, bladder, and skin
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  5. pathological diff erences between organs include the absence of storiform fi brosis within lacrimal glands and lymph nodes, and the lower frequency of obliterative phlebitis in salivary glands, lacrimal glands, lymph nodes, and kidneys.9,14 The rarity of fi brosis in lymph nodes means that the diagnosis of IgG4-related disease i
  6. lacrimal gland tumor. Islands of epithelial cells, myxoid stroma and cysts. Double layer of epithelial cells within a myxoid stroma. Chondroid differentiation. With carcinoma. Large round nodule of pleomorphic. adenoma surrounded by smaller. nodules of adenocarcinoma. that have infiltrated the orbit

Anatomy & Physiology of Eye

IgG4 is a minor component of the four subclasses of IgG in serum. Sporadic examples, such as IgG4 autoantibodies present in patients with autoimmune bullous skin diseases 1-3 and deposition of IgG4 seen in membranous nephropathy, 4 had indicated that IgG4 might be pathogenetically related to some diseases. But little attention has been paid to this minor component of IgG since Hamano et al. Exceptions to this rule exist, however, in organs such as the lymph node, 27 lung, 9 minor salivary glands, and lacrimal glands. 28 In those organs, storiform-type fibrosis or obliterative.

Oral Pathology Week 7 PPT - Soft Tissue Enlargements; Oral Pathology Week 7 Ppt - Soft Tissue Enlargements. Inflammatory disease of unknown etiologyresulting in granulomas developing in organs and tissues. Affects skin, salivary glands, lymph nodes,lungs, and eyes. Destruction of the exocrine glands especiallythe salivary and lacrimal. No Comments. pathology of endocrine system pdf. Uncategorized | | No Comments | | No Comment

Ocular Pathology - SlideShar

History. Acute dacryoadenitis is characterized by the following: Unilateral, severe pain, redness, and pressure in the supratemporal region of the orbit. Rapid onset (hours to days) Chronic dacryoadenitis is characterized by the following: Can be bilateral, painless enlargement of the lacrimal gland present for more than a month anatomy_of_eyelids_ppt 2/3 Anatomy Of Eyelids Ppt Read Online Anatomy Of Eyelids Ppt Anatomy and Physiology of Eye-A. K. Khurana 2017-01-30 The Ocular Circulation-Jeffrey W. Kiel 2011-02-01 This presentation describes the unique anatomy and physiology of the vascular beds that serve the eye

Graves' ophthalmopathy, also known as thyroid eye disease (TED), is an autoimmune inflammatory disorder of the orbit and periorbital tissues, characterized by upper eyelid retraction, lid lag, swelling, redness (), conjunctivitis, and bulging eyes (exophthalmos). It occurs most commonly in individuals with Graves' disease, and less commonly in individuals with Hashimoto's thyroiditis, or in. The primary organ responsible for vision is the eye. The eyeball is located within a bony orbital encasement, which protects it. The lacrimal apparatus keeps the eye moist and free of dust and other irritating particles through the production and drainage of tears. Eyelids protect the eye from external stimuli such as dust, wind, and excessive. In 60-90% of patients, multiple organs/sites are involved. The most common sites include pancreas, biliary tract, salivary or lacrimal glands, orbits, retroperitoneum, and kidneys. AJKD Atlas of Renal Pathology: IgG4-Related Tubulointerstitial Nephritis - American Journal of Kidney Disease

Osteology of facial skeleton - SlideShar

Volume 1 covers the pathology of the integument, muscle, haematopoietic system, nervous system and organs of special sense (eye and ear), while volume 2 contains presentations on the pathology of the circulatory, respiratory, digestive, urinary and reproductive systems. In all volumes, pathologic changes were described in simple language that. Epidemiology. The global incidence and prevalence of IgG4-RD remain largely underestimated. According to Japanese studies, the incidence of AIP increased from 0.8 to 3.1 cases per 100 000 people between 2007 and 2016, suggesting a rapid growth in awareness of IgG4-RD in less than a decade.25 26 AIP, however, represents only one of more than a dozen organs potentially affected by this condition We report three cases of adult lacrimal gland xanthoganulomatous disease that demonstrate the spectrum of this disorder and provide insight into immune dysfunction. A 23 year old asthmatic female had 1 year of bilateral, painless, lacrimal gland masses from polyclonal B cell (CD 20+) infiltration (fig 1A, B) The patient was asymptomatic for 18 months after external beam radiation (25 Gy in 10. `Can involve one or multiple organs `Often present with subacute development of a mass in the affected organ (eg, an orbital pseudotumor, renal mass resembling RCC, or nodular lesions in the lungs) or diffuse enlargement of an organ (eg, the pancreas) `Multiple organs are affected in 60-90% `Share specific pathologic, serologic, and clinical. During a biopsy, your doctor removes a small amount of tissue for examination. It is an important way to diagnose many different types of cancer. After a biopsy, your health care team completes several steps before the pathologist makes a diagnosis. A pathologist is a doctor who specializes in reading laboratory tests and looking at cells, tissues, and organs to diagnos

Lacrimal Glands and Apparatus - Vasculature - Innervation

The Pituitary Gland: Anatomy, Physiology, and its Function

Cell Biology of Cancer. The cell is the fundamental unit of life. It is the smallest structure of the body capable of performing all of the processes that define life. Each of the organs in the body, such as the lung, breast, colon, and brain, consists of specialized cells that carry out the organ's functions such as the transportation of oxygen, digestion of nutrients, excretion of waste. Bell's palsy affects about 40,000 people in the United States every year. It can affect anyone of any gender and age, but its incidence seems to be highest in those in the 15- to 45-year-old age group. Risk factors for Bell's palsy include pregnancy, preeclampsia, obesity, hypertension, diabetes, and upper respiratory ailments Jones Immune System PPT. STUDY. PLAY. Which T lymphocyte is a coreceptor for activation? Helper T cell CD4+ Which T lymphocyte recognizes foreign Ags with Class I MHC proteins? Cytotoxic T cells CD8+ Th1 cells secrete _____ and activate _____-IFN-Macrophages

Ppt Visual-pathway-anatomy Powerpoint Presentations and

Lacrimal gland development: From signaling interactions to

The lacrimal canaliculi drain the lacrimal fluid away from the surface of the eye via the lacrimal punctum. They are lined by stratified, non-keratinized squamous epithelium. The lacrimal sac is the dilated portion of the duct system. It is lined by pseudostratified ciliated columnar epithelium and contains numerous goblet cells Systemic --> immune response against a variety of self antigens with resultant damage to several organs and tissue systems. - caused by immune complexes and autoantibodies. Steps in pathogenesis of autoimmune diseases. 1) Genetic susceptibility. 2) Triggering event that leads to break in central and peripheral tolerance

Pathophysiology of ocular surface squamous neoplasia

Immunoglobulin G4-related disease (IgG4-RD) is an immune-mediated fibroinflammatory condition that is capable of affecting multiple organs [ 1-3 ]. Common forms of presentation include: Type 1 (IgG4-related) autoimmune pancreatitis (AIP). Sclerosing cholangitis - IgG4-related sclerosing cholangitis typically occurs together with type 1 AIP. Pathophysiology of DUB. Endocrine System • Function of the Endocrine System -to secrete hormones -chemical messengers that coordinate and direct target cells and organs. -Hyponatremia and hypo-osmolality lead to acute edema of the brain cells. Pathophysiology of the Endocrine System Fundamental Concepts in Endocrinology

Lacrimal Gland Masses : American Journal of Roentgenology

Incidence, pathology, localization, diagnosis, clinical features sum, and deep gray matter nuclei [8, 10]. Diffuse axonal injury and treatment. Review of the literature and report of an unusual case. is covered in detail in Case 14. Neurochirurgia (Stuttg). 1976;19(2):59-68 Department of Morphology and General Pathology. Vegetative (Autonomous) nervous system. Decrease function of lacrimal gland. Parasympathetic nervous system. sympathetic plexus of the organ) - postganglionic fibers form plexus along blood vessel (or gray RC - spinal nerve) Gastrointestinal and hepatobiliary system pathology Gastrointestinal system Structure and function [Fig. 10-1] • Sjogren's syndrome is immune mediated inflammation of salivary + lacrimal glands • Neoplasms - a disease of various organs cause by a parasite [echinococcus (cestode (tapeworm))] characterized b

Dacryoadenitis: Background, Pathophysiology, Epidemiolog

• The lacrimal nerve enters the orbit though the lateral part of the superior orbital fissure and runs along the upper border of the rectus laterals with the lacrimal artery, receiving a twig from the zygomaticotemporal branch of the maxillary nerve. • Entering the lacrimal gland, it supplies it adjoining conjunctiva Chapter 14 Seeing and Hearing The Ocular and Auditory Systems Functions of the Eye The ocular system is responsible for vision The combining forms for eye or sight are opt/i, opt/o, optic/o, ocul/o, and ophthalm/o Structures of the Eye The accessory structures of the eye include orbit eye muscles eyelids or palpebrae belphar/o is the combining form eyelashes conjunctiva conjunctiv/o is the. View 5) Gastrointestinal Pathology I and II.pptx from PATH 101 at University of Vermont. Diseases of the Gastrointestinal System I and II Laura Greene, MD Gastrointestinal (GI) Tract- Outline This resource includes descriptions, functions, and problems of the major structures of the human eye: conjunctiva, cornea, iris, lens, macula, retina, optic nerve, vitreous, and extraocular muscles. A glossary is included. There also is a test for color deficiency and three short quizzes 4. Sensory Organs: Appendages of skin, Parts of eye & lacrimal apparatus, parts of ear- external, middle and inner ear and contents. Tests buds. Lab. Experiments: Practical (0.5 credit) 1. Identification of parts of the nervous system. (0.1credit) 2. Identification of parts of the respiratory system. (0.1credit) 3

Idiopathic Orbital Inflammatory Disease - an overview

The three main categories of autoimmune liver disease are autoimmune hepatitis (AIH), primary biliary cirrhosis (PBC), and primary sclerosing cholangitis (PSC); all are well-defined entities with. The common internal punctum forms the first major valve of the lacrimal system, the valve of Rosenmuller, and acts to prevent reflux of tears back into the canaliculi during lacrimal pump function. The lacrimal sac is found within its bony fossa, formed by the anterior and posterior lacrimal crests (see Fig. 7A and B). It measures 12 to 15 mm. View Mucosal Immunity - Lecture.pptx from PATH 320 at Egerton University. Mucosal Immunity Dr Samuel Nyamweya, Human Pathology, Egerton University Mechanisms for disease on mucosa Lacrimal Apparatus It consists of: (a) The Lacrimal gland, which secretes the tears, and. its excretory ducts, which convey the fluid to the surface of the eye; (b) The Lacrimal canaliculi, the Lacrimal sac, and the Nasolacrimal duct, by which the fluid is conveyed into the cavity of the nose. 12/10/12 Main lacrimal glan The orbital cavity (eye socket) is the bony cavity that encloses the bulb and accessory organs of the eye, including the ocular muscles, lacrimal glands, nerves, vessels, and retrobulbar adipose tissue. Diseases of the orbital cavity include Graves ophthalmopathy, orbital cellulitis, rhabdomyosarcoma, and lacrimal sac disorders

The sphenopalatine ganglion (SPG) is a collection of nerve cells that is closely associated with the trigeminal nerve, which is the main nerve involved in headache disorders. It contains autonomic nerves and sensory nerves. Autonomic nerves are specialized nerves that control organ functions, including gut and bladder movements, beating of the. The organ and tissue which received the highest absorbed doses was extrathoracic region, lenses of the eyes, oral mucosa, brain, red bone marrow and salivary glands, respectively Conclusions: A source region for the lacrimal glands was developed to estimate the absorbed doses to other organs and tissues {{configCtrl2.info.metaDescription}} INTRODUCTION. Sjögren's syndrome (SS) is a chronic, multisystem inflammatory disorder characterized by diminished lacrimal and salivary gland function, which results in the unique combination of dry eyes (keratoconjunctivitis sicca [KCS]) and dry mouth (xerostomia) INTRODUCTION. Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis that can affect many organs, including the eye [ 1-3 ]. Ocular TB can involve any part of the eye and can occur with or without evidence of systemic TB. It generally develops following hematogenous spread from a primary focus but, in rare cases, it can. in which details of organ manifestations were carefully documented shows that more than half of the patients had more than 2 organs involved (Supplementary Figure 1). Of the 1717 organ manifestations reported, 85% were limited to the following 7 organs (apart from lymph nodes): pancreas, bile ducts, salivary glands, lacrimal glands, kidneys. The Anatomy, Physiology, and Pathology of the Eyelid Margins and the Lacrimal Puncta by E. Marx. Pult, Heiko *; Korb, Interesting features of these organs are only noticed when a special stain is used. It is important to commence with a brief description of the eyelid margin and the lacrimal punctum, observed with a strong magnifying slit lamp