moth-eaten appearance in bone
Primary
tumors of the patella. Patellar lymphoma with a pathologic fracture. (A) On radiographs, the patella consists of a sclerotic proximal portion and a lytic distal portion. (B) Permeative bone destruction, hazy margins, destroyed cortex, large soft tissue mass surrounding the patella, and joint involvement are shown on CT images.
A true permeative process of bone, or moth-eaten appearance in bone, describes multiple small endosteal lucent lesions or holes, often with poorly defined margins, with sparing of the cortex. It is a bone marrow process.
The term 'moth-eaten' describes the pattern of destruction observed in fabric that has been eaten by moth larvae.
The most common pathologies that may manifest with a permeative appearance include :
- multiple myeloma
- primary bone lymphoma
- Ewing sarcoma
- infection
- eosinophilic granuloma
- malignant fibrous histiocytoma
- metastases, especially Burkitt lymphoma, mycosis fungoides
Mnemonic: FIRE MD
See also
Siehe auch:
- Multiples Myelom
- Pleomorphes Undifferenziertes Sarkom
- Ewing-Sarkom
- permeative process in bone (mnemonic)
- skeletale Manifestationen der Langerhanszell-Histiozytose
- infection
- pseudo-permeative process in bone
- FIRE MD
und weiter:
Assoziationen und Differentialdiagnosen zu permeative process:
skeletale
Manifestationen der Langerhanszell-Histiozytose