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Oral Pathology

metabolic dist-protien & lipid part 3.

Daily requriment-10-20 gms of fat per day for adults. Young children need 25%extra amount of fat. Functions- Fuel reserve of the body. Membrane structure and membrane permeability. Sources of fat soluble vitamin. Regulator of cellular metabolism.                  Digestion of lipid Digestion of lipid involves mainly three enzymes namely lingual …

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metabolic dist-protein & lipid part 1

    At the end of the lecture students should describe- The sources of protein and lipid Different functions of protein and lipid and The metabolic disorders associated with protein and lipid metabolism (kwashioker & gaout).   Sources – Animal sources:milk,milk products, eggs,meat,fish etc. Plant sources-pulses,cereals,dry fruits,nuts beans etc. Animal proteins …

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metabolic disorders

Proteins are complex organic nitrogenous compounds. They are indispensible constituents of the diet because they are the only source of the essential amino acids which include valine,lysine,leucine,isoleucine,phenylalanine,methionine,threonine,tryptophan,histidine and arginine. Sources – Animal sources:milk,milk products, eggs,meat,fish etc. Plant sources-pulses,cereals,dry fruits,nuts beans etc.   Disturbances in protein metabolism Protein energy malnutrition is …

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MELANOCYTES

Introduction Embryology Structure Ultrastructure Melanosomes Melanogenesis Melanin Regional variation Methods of demonstration Disorders of melanin pigmentation   Absorption of uv light Scavenger of damaging free radical Can oxidize NADH in vitro and participate in other oxidation reduction reactions Melanocytes in stria vascularis also known as intermediate cells Melanocytes help proper …

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MAX SINUS 2 final

Introduction Development Anatomy Histology Blood supply, Venous supply, Lymphatic supply Functions Examination Investigations Pathologies of maxillary sinus (developmental anomalies)   Clinical Features   It is usually asymptomatic, and is discovered on a routine radiograph. Radiographic Features   The image of thickened mucosa is readily detectable in the radiograph as a …

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Malignant Salivary Gland Tumors-I

Mucoepidermoid carcinoma is not encapsulated Infiltrate to surrounding tissue. Metastasis to regional lymph nodes. Distant metastasis to lung, bone, brain and subcutaneous tissue is common.   Histopathologic grades based on Amount of cyst formation Degree of cytologic atypia Relative no. of mucous, epidermoid ,& intermediate cells HISTOPATHOLOGICAL GRADES

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Malign.Tumors-C.T.- IV Validated

Oral lesions: most commonly –posterior  hard palate, buccal vestibule, gingival Rapidly growing swelling ,may ulcerate Large, fungating, necrotic, foul-smelling masses Underlying bone involvement: tooth mobility & pain, paresthesia of mental nerve   The absence of systemic symptoms is      signified by adding ‘A’ to the stage   The presence of systemic …

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Malig.Tumors-C.T.- V validated

40-70 years of age. Sources of metastatic tumors to oral region are cancers in breast, lung ,kidney, bone. Initially  asymptomatic Slight discomfort / pain, paresthesia. Teeth –loose, extruded, difficult mastication. Metastatic tumors of soft tissue Resembles hyperplastic/ reactive lesion   Clinical features, Histopathological features of               Plasmacytoma & Multiple myeloma Clinical …

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LYMPHATICS OF HEAD, NECK, AND FACE-2

LYMPH NODE OF HEAD & NECK HORIZONTAL SUBMENTAL LN SUBMANDIBULAR LN PAROTID LN PREAURICULAR LN OCCIPITAL LN VERTICAL CENTRAL PRELARYNGEAL LN PRETRACHEAL LN PARATRCHEAL LN LATERAL JUGULODIGASTRIC LN JUGULO-OMOHYOID LN Submandibular – They lie in submandibular triangle in relation to submandibular gland. Afferents come from lateral part of    the …

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lymphadenopathy

At the end of the seminar learner should be able to:- Enumatare the infectious, immunological, malignant and other causes of cervical lymphadenopathy. Differentiate the cervical lymphadenopathy from clinical examination. Enumarate the imaging methods for cervical lymphadenopathy. Enumarate the characteristic features of lymph node on various imaging . Cervical lymphadenopathy is …

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lip

White lesions Candidiasis Squamous cell papilloma Verruca vulgaris Condyloma Lichen planus Lichenoid drug eruption Actinic keratosis Squamous cell carcinoma Snuff dipper’s lesion Cigarette smoker’s lip Focal epithelial hyperplasia Red lesions Hemangioma Sturge-Weber syndrome Thrombocytopenic purpura Rendu-Osler-Weber disease Kaposi’s sarcoma Contact allergy   Ulcerative lesions Traumatic ulcer aphthous ulcer Herpes simplex …

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langerhan cells

In skin infections, the local Langerhans cells take up and process microbial antigens to become fully functional antigen-presenting cells. Generally, dendritic cells in tissue are active in the capture, uptake and processing of antigens. Once dendritic cells arrive in secondary lymphoid tissue, however, they lose these properties while gaining the capacity to interact with naive T-cells. LCH In the rare …

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