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Oral Pathology

Beningn Epithelial TumorsII

At  the end of the lecture student should be able to understand the: Histological classification of salivary gland tumors. Etiology, clinical features, histopathological features of: Canalicular adenoma Warthins tumor Oxyphilic adenoma Myoepithelioma Ductal papilloma   Canalicular Adenoma Distinctive variant of the monomorphic adenoma Clinical Features Primarily in intraoral accessory salivary …

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BENIGN SALIVARY GLAND TUMOR PART-1 (2)

Adenomas Pleomorphic Adenoma Myoepithelioma Basal cell Adenoma Warthin’s Tumor (Adenolymphoma) Oncocytoma (Oncocytic Adenoma) Canalicular Adenoma Sebaceous Adenoma Intraoral Tumors < 1- 2 cm in diameter Palate is the most common site for minor gland followed by upper lip and buccal mucosa Causes difficulty in mastication, talking a breathing Palatal Tumors …

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Benign CT Tumors 6

At the end of the lecture ,the student should be able to: Describe clinical features, radiographic features, histopathologic features &treatment of  Chondroma Describe clinical features, radiographic features, histopathologicfeature&treatment of Osteoma,osteoid Osteoblastoma Define,etiology, clinical features, histopathologic features &treatment of Torus palatinus Define,etiology, clinical features, histopathologic features &treatment of Torus mandibularis, Describe …

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Benign CT Tumors 5

At the end of the lecture student should be able to Describe differences between Hemangiomas & Vascular Malformations , classification of vasoformative tumors ,associated syndromes,clinical features, histopathological features and treatment of  Hemangiomas Describe classification,clinical features, histopathological features and treatment of  Lymphangiomas  Describe types,clinical features,radiographic features, histopathological features and treatment of  …

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Benign CT Tumors 4

Abundant myxoid ground substance (mucopolysaccharides, mainly hyaluronic acid) True neoplasm made of tissue resembling primitive mesenchyme Benign lesion, does not metastasize Frequently infiltrates adjacent tissues Intraoral soft tissue myxoma- extremely rare Cases occurring in jaw bones- commonly are odontogenic myxomas   Clinical Features- Hereditary disease, Autosomal dominant trait, No gender …

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Benign CT Tumors 2

Histopathlogic Features- Surface- ulcerated SSE or intact exceedingly cellular  mass of C.T. Large nos. of plump proliferating fibroblasts intermingled throughout very delicate fibrillar stroma Characteristic high degree of cellularity Vascularity not prominent Histopathologic Features- Nonencapsulated mass of tissue Delicate reticular & fibrillar C.T. stroma Large nos. of ovoid or spindle …

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BACTERIAL INFECTION OF ORAL CAVITYIIII

Occurs predominantly in children during winter months. Caused by β-hemolytic streptococci. Clinical features Incubation period 3-5 days Sever pharyngitis, tonsillitis, headache, fever, chills, vomiting Enlargement of cervical lymphnodes.   Clinical features- Frequently found on gingiva, lips, tongue , buccal mucosa and other areas. Elevated, pedunculated, or sessile mass with smooth, …

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AUTONOMIC NERVOUS SYSTEM

Voluntary Skeletal muscle Single efferent neuron Axon terminals release acetylcholine Always excitatory Controlled by the cerebrum Involuntary Smooth, cardiac muscle;  glands Multiple efferent neurons Axon terminals release acetylcholine or norepinephrine Can be excitatory or inhibitory Controlled by the homeostatic centers in the brain – pons, hypothalamus, medulla oblongata Both ANS …

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ANATOMY OF SALVARY GLAND

MICROANATOMY     The secretory unit (salivary unit) consists of the acinus, myoepithelial cells, the intercalated duct, the striated duct, and the excretory duct. All salivary acinar cells contain secretory granules; in serous glands, these granules contain amylase, and in mucous glands, these granules contain mucin. Acini, responsible for producing the primary …

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Anatomy of Facial Nerve

Introduction Embryology Nucleus Surface marking Functional components Course and relations Branches and distribution Ganglia Arterial Supply & Venous Drainage Applied Aspects Disorders   Facial nerve course, branching pattern, and anatomical relationships – established during the first 3 months of prenatal life The nerve is not fully developed until about 4 …

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Amelo

Tencate’s oral histology and embryology-8th edition Oral histology-Berkovitz,3rd  edition Orban’s oral histology,13th edition Oral development & histology ,James K. Avery 2nd edition. Dental enamel, John wiley At this stage ameloblast reflects their intense synthetic and secretory activity. Golgi complex and RER  is present extensively. Protein synthesized is  processed in golgi …

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Allergic and Immunologic Diseases-III

At  the end of the lecture student should describe Clinical Features, Oral manifestations, histopathology & treatment modalities of Sarcoidosis Uveoparotid fever Midline lethal granuloma Wegner’s granulomatosis   Form of Sarcoidosis. Firm, painless bilateral enlargement of parotid glands, accompanied by inflammation of uveal tracts of eye & cranial nerve involvement. Submaxillary, …

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Allergic and immunologic diseases-II

At  the end of the lecture student should  describe- Incidence,Prevalence,Clinical Features ,Oral manifestations,Diagnostic criteria,Treatment modalities & Complications of Behcet’s syndrome Reiter’s syndrome Text book of oral pathology Shafer’s, 5 & 6th edition Color Atlas of Oral Diseases Cawson, R.  2nd edition Oral  and Maxillofacial Pathology Neville, Brad W.  2nd Lucas’s …

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Allergic and immunologic diseases-I

Recurrent apthous minor- commonest (canker sore) Recurrent apthous major-    Severe form (periadenitis mucosa necrotina recurrens or Sutton’s disease) Recurrent herpetiform ulceration-     Clusters of ulcer resembling viral lesion but lacking evidence of virus and low antibody to mucosa Recurrent ulcer with Behcet‘s syndrome Frequently in females, 10 to 30 years Frequency …

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