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20597226
Bone Swellings
Descripción
First Year Dentistry Mapa Mental sobre Bone Swellings, creado por sanna pathy el 20/01/2020.
Sin etiquetas
oral diseases
dentistry
first year
Mapa Mental por
sanna pathy
, actualizado hace más de 1 año
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Creado por
sanna pathy
hace más de 4 años
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Resumen del Recurso
Bone Swellings
Developmental lesions
Torus palatinus
Bony hard swelling in palate
Often design denture around torus
May have surgical reduction to aid denture fit
Mandibular torii
Bony prominence in mandible (from lingual aspect)
Reactive lesions
Reactive exostosis
Cause = chronic trauma
Treatment = eliminate cause & remove surgically
Very hard, may have ulceration
Fibro-osseous lesions
Pathologic term for group of intra-osseous lesions
Fibroblastic background with bone formation (irregular trabeculae arrangement)
Histopathology of all are indistinguishable
Fibrous dysplasia
Painless bone expansions
Children
Slow growth
Usually stops when child stops growing
No tooth displacement
No systemic abnormality
Radiographically
Lesion merges into normal bone
Begins radiolucent -> ossifies over time -> radiopaque
Forms
Monostotic (solitary)
Multiple (cranio-facial)
Polyostotic = McCune-Albright syndrome
Management
Wait until growth stops (18yrs)
Jaw recontoured (lesion not removed)
Ossifying fibroma
Cemento-osseous dysplasia
Female, Asian/Black
Radiographically
Radiolucent -> ossify over time -> Radiopaque
Usually mandible & above IAN canal
Teeth vital
Types
Localised = periapical
Generalised = florid
Treatment = leave & monitor
Cherubism
Radiographically
Bilateral, multilocular radioluncencies
Buccal expansion
Facial deformity
'chubby face'
Treatment
Facial recontour when stopped growing (18yrs)
Exclude hyperparathyroidism
Neoplasms
Benign
Ossifying fibroma
Rare
Slow growing
Radiographically
More defined outline (circumscribed)
Mixed radiopaque centre with radiolucent outline
Treatment = surgical removal with small margin
Osteoma
Radiographically
Well-circumscribed outline
Radiopaque
Histologically
Cancellous
Compact
Clinical types
Solitary
Multiple
Gardner syndrome
Multiple odontomes
Multiple intestinal polyps
High malignant potential
APC gene mutation
Maxilla, mandible, sinuses
Treatment = surgical removal
Malignant
3) Marrow neoplasms
Ewing's tumour = primary bone marrow tumour
Myeloma, lymphoma
1) Metastatic bone tumour
Most common
Neurological sign e.g. numb lip
From e.g. breast, lung, prostate
4) Primary bone tumour
Osteosarcoma
Malignant osteoblasts depositing malignant bone
Central or juxtacortical (most common)
Radiograph
Sun ray spicule on CT scan
8-15yrs or >50yrs
Chrondosarcoma, Mesenchymal chondrosarcoma
2) SCC (spread to bone)
Mostrar resumen completo
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