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Lytic or Bubbly Lesions: FEGNOMASHIC

Fibrous Dysplasia

No pain, no periosteal reaction, if in tibia mention adamantinoma; pelvis + proximal femur, ribs, skull; ground glass


Must have calcs except in phalanges, no pain, no periostitis

Eosinophilic granuloma (EG-LCH)

must be < 30 yo

Giant Cell Tumor

epiphysis must be closed, must be epiphyseal and abut the articular surface, eccentric, well defined but nonsclerotic border

Nonossifying fibroma NOF

must be < 30 yo, no pain, no periostitis


always mention with ABC

Mets, Myeloma

must be > 40 yo

Aneurysmal Bone Cyst ABC

expansile, must be < 30 yo

Solitary bone cyst

must be centrally located, no pain, no periostitis, < 30 yo

Hyperparathyroidism (brown tu)

must have other evidence of hyperparahyroidism



< 30 yo, epiphyseal

Chondromyxoid Fibroma

mention with NOF

Multiple Lytic Lesions: FEEMHI

Lytic Epiphyseal Lesions: ICE GM

Lytic lesion < 30 yo

Dense Bones Regular Sex Makes Occasional Perversions Much More Pleasurable and Fantastic

- Renal Osteodystrophy
- Sickle Cell Disease
- Myelofibrosis
- Osteopetrosis
- Pyknodysostosis
- Mastocytosis
- Mets - breast and prostate
- Pagets disease
- Athletes
- Fluorosis

High Riding Shoulder

- RA
- Trauma

Widened teardrop in the hip

- Infection
- Trauma
- Pigmented VilloNoduular Synovitis - PVNS
- Synovial osteochondromatosis

Permeative Lesions in Children

- Ewing sarcoma
- Infection
- EG

Cortical holes (Pseudopermeative lesions)

- Osteoporosis
- Radiation
- Hemangiomas

CPPD assoc. disorders

- primary hyperparathyroidism
- Gout
- Hemochromatosis

Dense base of skull

- FIbrous dusplasia
- Englemans disease
- Von Buchems disease
- Paget's disease
- Meningioma
- Pyknodysostosis
- Osteopetrosis

Bony sequestrum

- INfection
- EG
- Osteoid osteoma
- FIbrosarcoma
- Lymphoma