Salivary glands in our body that secrets saliva.pptx

This power point presentation about salivary gland

1. Salivary glands

2. Classification Parotid gland- serous secretion Submandibular gland- mucoserous secretion Sublingual and- mucoserous secretion Minor salivary glands- labial, palatine, lingual, pharyngeal- secrete mucous

3. Salivary glands

4. Parotid Gland Covered by fibrous capsule Stensons duct is 6cm long opens opposite the 2 nd upper molar Facial n, pes anserimus divides the PG into lateral & medial portion Blood supply- external carotid a, superficial temopral a., transverse facial a. Lymphatic drainage to the submandibular and deep jugular nodal chains

5. Submandibular gland Located between the digastric m and mandible,> infection from oral floor to the gland Submandibular duct (Wharton )- 5cm long runs along the sublingual n and opens at the caruncle The hypoglossal n runs inferomedial to the gland. The facial a. & v. loop around the posterior part of the gland Lymph drains in the lateral and inferomdial portion of the gland which also receives drainage from face and oral cavity.

6. S.G. function Nutrition and digestion Protective function- mechanical, secretion of enzymes lysozyme , muramidases , peroxidases , IgA Protection from gum disease and dental caries

7. Clinical Examination Hx - systemic disease, medication, surgery, radiotherapy, sialorrhea , sicca syndrome Inspection- external, oral cavity, tonsillar region, facial nerve function Palpation Imaging studies- US, Radiographs, Sialography , CT-MRI, Sialoendoscopy Biopsy- FNA, incisional biopsy

8. Diagnosis of S.G. Tumors Benign Tumor- Slow growth - Painless, soft, mobile - no infiltrative signs - Malignant - Rapid growth - Painful fixed nodule - Infiltrative growth - lymph-node enlargement

9. Non inflammatory diseases & injuries Sialolithiasis Sialadenosis - non inflammatory symmetrical swelling associated with Chronic alcoholism Vitamin deficiencies Diabetes Mellitus Protein Deficiency Anorexia Nervosa , other eating disorders Injuries – Penetrating or blunt traumas

10. Diseases of the salivary glands o      Inflammatory §   Obstructive Acute §   Nonobstructive Chronic o      Metabolic abnormalities o      Endocrinopathies o      Neoplasms o      Trauma  

11. Inflammations Acute nonobstructive Viral Mumps is common other viruses- Coxsackie, ECHO, CMV Contact hx . incubation period 2-3 weeks affects 5-15 years old PE Diffusely enlarged parotid gland The saliva is clear

12. cont Dx Abrupt onset of enlarged salivary gland Elevated serum amylase determination Relative lymphocytosis Rx hydration analgesia Immunity - lifelong Sequela - Unilateral SNHL, Pancreatitis, Meningitis, Gonadal involvement

13. Bacterial Acute bacterial sialadenitis Sudden painful swelling of the involved gland Temperature PE Firm, indurated, tender May be associated trismus Purulent salivary secretions Dx S. aureus, Strep. pneumoniae Raised WBC Serum immunoprotein analysis Recurrent episodes may occur

14. cont Rx Amoxicillin clavulinate Hydration Local heat and massage   Clinical course Recurrent- oral hygiene, dilatation of the duct, pre meal massage In premature neonates- Staphyloccus - abscess formation Cloxacillin IV, drainage  

15. Tumors 70% are benign Pleomorphic adenoma Cystadenoma Malignant Mucoepedermoid – parotid & minor sg Acinar Cell ca- locally invasive no metastasis -parotid Adenoid cystic ca- perivascular , perineural infiltration- hematogenous metastasis