Presentation on theme: "Ref: Maxillofacial Imaging ,T A Larheim , P L Westesson 2006"— Presentation transcript:
1 Ref: Maxillofacial Imaging ,T A Larheim , P L Westesson 2006 Malignant Jaw tumorsBy:Nour-Eldin MohammedRef: Maxillofacial Imaging ,T A Larheim , P L Westesson 2006
2 Squamous Cell Carcinoma Synonyms: Epidermoid carcinomaClinical FeaturesMost common malignancy of oral cavityMales more frequent than femalesOlder age groups (50 years and older), but also younger than 30 yearsMost frequent in tongue,floor of mouth,mandibular gingiva; retromolar trigone, and anterior tonsillar pillar, soft palate
3 Clinical photograph shows leukoplakia that transformed to gingival cancer Intraoral panoramic view shows diffuse bone destruction
4 Coronal CT imageCoronal T2- fat suppressed MRISquamous cell carcinoma, maxilla; 70-year-old female with some bleeding from tender soft tissue mass of right gingival mucosa.
5 Mucoepidermoid Carcinoma Clinical FeaturesSwelling with or without painMandible, posterior regions, more frequent than maxillaFemales more frequent than males (unlike most oral carcinomas)Fourth and fifth decades, but may occur in any age groupSpread to regional lymph nodes in less than 10%
7 Adenoid Cystic Carcinoma Clinical FeaturesMost commonly seen in minor salivary glands of head and neck, usually palate.Mostly as a painless mass, slowly growingUnlike most carcinomas, seldom metastasizes to regional lymph nodesLung most common site of metastasisPerineural spread in more than 50%; frequent distant metastasisSlight female predominanceFourth to sixth decades
10 Non-Hodgkin’s Lymphoma Clinical FeaturesNon-Hodgkin’s lymphoma of extranodal sites (as opposed to Hodgkin’s lymphoma which is predominantly nodal)Extranodal involvement may include maxillary sinus and maxilla or, less frequently, mandibleAll age groups, adults in particularBurkitt’s lymphoma affects children; showsrapid growth and may involve one or both jaws
11 Non-Hodgkin’s lymphoma, maxilla; 49-year-old male painless swelling
12 Multiple Myeloma Clinical Features (Myeloma) Most common primary bone malignancy in adultsMales more frequent than femalesOlder age groups (50 years)Bone pain, malaisePlasmacytoma is a solitary form of myeloma
14 Osteosarcoma Clinical Features Only 5–10% in head and neck; mostly in jawsUsually painless swelling in jawsMandible slight predominanceMales slight predominanceMay occur in any age group; peak in fourth decadePrognosis of jaw sarcoma is poor
17 Chondrosarcoma Clinical Features Mostly in adults in fourth to sixth decadesLess aggressive, more slowly growing than osteosarcomaBetter prognosis; metastasizes more seldom than osteosarcomaMandible and maxilla, but rare
19 Ewing Sarcoma Clinical Features Only 1–4% in head and neck area; most commonly mandibleHard swelling, pain or pain-freeMales more frequent than femalesUsually first and second decades, but may occur at any age
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