FEGNOMASHIC
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Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Giant cell tumor - Ganzer Fall bei Radiopaedia
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Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Renal cell carcinoma metastasis - Ganzer Fall bei Radiopaedia
![](https://pacs.de/sites/default/files/pictures/thumbs/data.pacs.de/1/1/2/7/4/7/7375b005e76a6d694aaab0dcf2ede3_big_gallery_thumb.jpg)
Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Multiple myeloma - skeletal survey - Ganzer Fall bei Radiopaedia
![](https://data.pacs.de/sites/default/files/mirrorimages/prod-images-static.radiopaedia.org/images/26680/de426254dbc82b0110773978248c62_big_gallery.jpeg)
Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Multiple myeloma - skeletal survey - Ganzer Fall bei Radiopaedia
![](https://pacs.de/sites/default/files/pictures/thumbs/data.pacs.de/1/1/2/7/5/0/d0858e46701b474d2817f4158285ed_big_gallery_thumb.jpg)
Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Aneurysmal bone cyst - Ganzer Fall bei Radiopaedia
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Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Giant cell tumor - Ganzer Fall bei Radiopaedia
![](https://pacs.de/sites/default/files/pictures/thumbs/data.pacs.de/1/1/2/7/5/6/fa33bf3c120469826a065ead90d39e_big_gallery_thumb.jpg)
Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Enchondroma - Ganzer Fall bei Radiopaedia
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Lucent/lytic
bone lesion - differential diagnosis (mnemonic) • Aneurysmal bone cyst (ABC) - tibia - Ganzer Fall bei Radiopaedia
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Osteoblastoma
• Osteoblastoma - Ganzer Fall bei Radiopaedia
Mnemonics for the differential diagnosis of lucent/lytic bone lesions include:
- FEGNOMASHIC
- FOG MACHINES
They are anagrams of each other and therefore include the same components. They are by no means exhaustive lists, but are a good start for remembering a differential for a lucent/lytic bone lesion and will suffice for >95% of the time .
Mnemonics
FEGNOMASHIC
- F: fibrous dysplasia (FD) or fibrous cortical defect (FCD)
- E: enchondroma or eosinophilic granuloma (EG)
- G: giant cell tumor (GCT) or geode
- N: non-ossifying fibroma (NOF)
- O: osteoblastoma
- M: metastasis(es)/myeloma
- A: aneurysmal bone cyst (ABC)
- S: simple (unicameral) bone cyst
- H: hyperparathyroidism (brown tumor)
- I: infection (osteomyelitis) or infarction (bone infarction)
- C: chondroblastoma or chondromyxoid fibroma
FOG MACHINES
- F: fibrous dysplasia (FD) or fibrous cortical defect (FCD)
- O: osteoblastoma
- G: giant cell tumor (GCT) or geode
- M: metastasis(es)/myeloma
- A: aneurysmal bone cyst (ABC)
- C: chondroblastoma or chondromyxoid fibroma
- H: hyperparathyroidism (brown tumor)
- I: infection (osteomyelitis) or infarction (bone infarction)
- N: non-ossifying fibroma (NOF)
- E: enchondroma or eosinophilic granuloma (EG)
- S: simple (unicameral) bone cyst
These lists are not exhaustive (e.g. intraosseous lipoma is omitted)
Related articles
- lytic bone lesion: main article: an approach: mnemonics
- modified Lodwick-Madewell classification
Siehe auch:
- Aneurysmatische Knochenzyste
- Chondroblastom
- benigne Osteolysen
- maligne Osteolysen
- Ostitis fibrosa cystica
und weiter:
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