intrazystisches Karzinom in der Mandibula
Radiolucent
lesions of the mandible: a pattern-based approach to diagnosis. Intracystic carcinoma. a Sagittal oblique and b axial CBCT image displaying the characteristic aspect of a dentigerous cyst with well-defined cyst borders (arrows). The cyst surrounds the crown of an impacted tooth. c T2-weighted image: solid intracystic component with moderately high signal intensity (arrows). Fluid with high signal intensity within the cyst (dashed arrow). Oedema in the masseter muscle (asterisk). d ADC map with low ADC values (circle) of solid parts (ADC = 0.89 × 10−3 mm2/s) suggesting an intracystic malignant tumour despite the benign appearance on CBCT. Histology revealed SCC arising within a dentigerous cyst
intrazystisches Karzinom in der Mandibula
lytische Läsionen der Mandibula Radiopaedia • CC-by-nc-sa 3.0 • de
Lucent lesions of the mandible are not uncommon and may be the result of odontogenic or non-odontogenic processes. Lucency may be conferred by a cystic process (e.g. periapical cyst) or a lytic process (e.g. mandibular metastases).
Pathology
Etiology
Odontogenic
- periapical (radicular) cyst (60% of odontogenic cystic lesions )
- periapical abscess
- dentigerous (follicular) cyst
- odontogenic keratocyst (keratocystic odontic tumor)
- ameloblastoma
- primordial cyst of the jaw
- residual cyst of the jaw
- cystic odontoma
Non-odontogenic
- fibrous dysplasia/cherubism
- mandibular metastases
- squamous cell carcinoma invading mandible
- multiple myeloma
- giant cell granuloma
- aneurysmal bone cyst
- peripheral nerve sheath tumor of mandible
- traumatic bone cyst of jaw (simple cyst)
- Stafne cyst
- brown tumor
- Langerhans cell histiocytosis
- Gorham disease
See also
Siehe auch:
Assoziationen und Differentialdiagnosen zu 