1. Universidad de Guadalajara Robles Mariscal Benjamín Héctor Manuel Virgen Ayala Clínicas Quirúrgicas Arias Siordia Abraham Septiembre, 2011 Centro Universitario de Ciencias de la Salud Head and Neck Pathology

2. Head and Neck Pathology Soft Tissue Tumors

3. Ciphers 1% 59% 19% 15% 9%

4. facial and cervical t issue 100 Benign 50 Malignant 2/100,000/year

5. Causes and risk factors Genetic predisposition Radiation Exposure Lymphedema Injuries Chemical

6. Cancer staging Tumor Grade Size Metastasis Stage 1 Stage 2 Stage 3 Stage 4

7. Lipoma - Liposarcoma Fibroma - Fibrosarcoma Neurofibroma - Neurosarcoma Lymphangioma – lymphangiosarcoma Hemangioma – Hemangiosarcoma Leiomyoma – Leiomyosarcoma Rhabdomyoma - Rhabdomyosarcoma

8. Lymphangioma

9. Hemangioma

10. Clinical Evaluation and Diagnosis Neurological symptoms Vascular PAAF Excisional biopsy NMR CT

11. Treatment Functionality Surgery Surgical removal Chemotherapy

12. Head and Neck Pathology Mumps and parotid tumors and salivary glands

13. Mumps Mixovirus parotiditis . Staphylococcal infection Primary Secondary

14. Signs and symptoms Inflammation Headache Fever 38°C Local pain Orchitis

15. Diagnosis Inflammation IgM Specifies Virus Insulation PCR

16. Treatment Insulation – Paracetamol Meningitis Orchitis Pancreatitis

17. Parotid tumors and salivary glands Major salivary glands Minor salivary glands

18. Ciphers 2% 70% 22% 8%

19. Ciphers 20% 60% 80%

20. Benign tumors Pleomorphic Adenoma Strong, slow, painless. Pleomorphic adenoma carcinoma

21. Benign tumors Lymphomatous papillary cystadenoma Warthin Hule

22. Malignant Tumors Mucoepidermoid Carcinoma Parotid and minor salivary glands

23. Malignant Tumors Adenoid cystic carcinoma Pain and paresthesia Expansion perineural

24. Diagnosis Nuclear magnetic resonance CT

25. Treatment Surgical removal Neck Dissection Radiotherapy

26. Staging T 1 T 2 T 3 T 4 a T 4 b