NON- ODONTOGENIC TUMORS Flashcards
Fibro- osseous lesion
Mandible
Ossifying Fibroma
Radiographic appearance of Ossifying Fibroma
RDL / Mixed lucent - opaque
Well- circumscribed or sharply defined border
‼️‼️BE‼️‼️
Microscopic / Histopath of Ossifying Fibroma
📌Fibrous CT
📌Immature , new bone
📌Osteoblast
Tx. Ossifying Fibroma
Surgical Excision
DDx. of Ossifying Fibroma
Fibrous Dysplasia
Fibro- Osseous Lesiom
Fibrous Dysplasia
‼️BE‼️
Clinical Features of Fibrous Dysplasia
Maxilla
Malignant transformation to osteosarcoma
‼️BE‼️
Classification of Fibrous Dysplasia
Monostotic
Polyostotic
one bone more commn
Monostotic
More than one, McCune Albright Syndrome
Polyostotic
McCune Albright Syndrome TRIAD
Polyostotic fibrous dysplasia
Cafe au lait spot
Early Sexual Development / Hyperfunctioning
normal fibrous tissue
abnormal bone
immature bone
Ossifying Fibroma
normal bone
abnormal fibrous tissue
Fibrous Dysplasia
Most common bone tumor
widened PDL space
Rx: Sunray/ Sunburst Appearance
Osteosarcoma
Radiographic Appearance of Fibrous Dysplasia
RDL or mixed lucent opaque
Ground glass appearance
Poorly circumscribed/ poorly defined border
Microscopic / Histopath Fibrous Dysplasia
Fibrous CT
Immature new bone chinese character
Osteoblasts
Capillaries
Ground Glass Appearance
📌Hyperparathyroidism
📌Albers - Schonberg
📌 Fibrous Dysplasia
Tx of Fibrous Dysplasia
Small lesions- none
Large lesions- surgical recontouring after puberty
DDx. of Fibrous Dysplasia
Ossifying fibroma
benign tumor of mature bone
Osteoma
Classification of Osteoma
- Periosteal
2. Endosteal/ Solitary 📌📌📌 more common
Location: Mandible
aAbnormal :bone
Rx: Well circumscribed
Hx: Cellular
Ossifying fibroma
Location: Maxilla
Abnormal: Fibrous
Rx: Poorly circumscribed
Hx: w/ capillaries vascular
Fibrous Dysplasia
Gardner’s Syndrome / Familial Colorectal Polyposis (IF EMOS)
Intestinal Polyps (Colorectal Carcinoma) Fibroma Epidermal Cyst Multiple Osteoma Odontoma Supernumerary Teeth
‼️‼️BE
Radiographic of Gardners Sundrome/ Familial Colorectal Polyposis
Radioapaque always
Cotton Wool Appearance
Compact bone or Cancellous Bone
Osteoblasts
Microscopic / Histopath Gardners
Intestinal Polyposis
macules
flat, skin pigmentatiom
Normal dentition
Peutz Jegher Syndrome
‼️‼️BE
seem exclusively in the jaws
mandible (anterior to the molars)
Central Giant Cell Granuloma
between 1st molar & incisors . ant. to the molars between incisor & molars
Central Giant cell granuloma / PGCG
Rx. Central Giant Cell Granuloma
RDL
Microscopic / Histopath of Gardner Syndrome /Familial Colorectal Polyposis
Fibroblasts
Multinucleared giant cells (osteoclast-like)
Well vascularized stroma
Multinucleared Giant Cell (HAC PC)
Hyperparathyroidism Aneurysmal bone cyst Cherubism PGCG Central Giant Cell Granuloma
📌Hemorrhage
Hemosiderin (breakdown of RBC) ➡️ Hemoglobin Heme➡️ Porphyrin➡️ Biliverdin➡️ Bilirubin ➡️ Hemosiderin
allergic rxn,
Parasitic infection
Viral infection
Eosinophils
