Age of Tumors Exam 3 Flashcards
Giant cell tumor
age, incidence
20-40 yrs
- 1:1
- malignant 3:1 F
Solitary osteochondrosarcoma
age, incidence
below 20
-2:1 M
Hereditary multiple exostosis (HME)
“diaphyseal achalasia”
age, incidence
2-10 y/o
-2:1 M
Simple/solitary/unicameral bone cyst
age, incidence
- 3-14 yrs in 80%
- 2:1 M
Aneurysmal bone cyst
age, incidence
10-30 y/o
- 75% occur below 20
- 60% F
Osteoblastoma
age, incidence
peaks at 10-20 y/o (70%)
-2:1 M
Osteoid osteoma
age, incidence
- 10-25 y/o
- 2:1 M
Osteoma
age, incidence
Commonly found in adulthood
Enchondroma
age, incidence
10-30 y/o
-1:1 (M:F)
Enchondromatosis/Ollier’s
age, incidence
early childhood presentation
Hemangiomas
age, incidence
4-5th decade
-1:2 M
Chondroblastoma
age, incidence
8-59 yrs with a peak incidence bw 5-25 yrs (88%)
- occurs before the cessation of enchondral bone growth
- 2:1 M
Fibrous cortical defect
age, incidence
mc 2-10 yrs w peak 7-8 yrs
-affects 30% of children
Nonossifying fibroma
age, incidence
MC 8-20 yrs w 75% occurring in the 2nd decade
-affects 30-40% of children
Paget’s disease
age, incidence
age >55 yrs in 3%
- > 85 yrs in 10%
- 2:1 M
- affects 3% indi >40 y/o
- higher in northern latitudes
- MC in united kingdom, Australia, and new Zealand
Fibrous Dysplasia
age, incidence
- 1st-2nd decades of life
- 1:1 (M:F)
Fibrosarcoma
age, incidence
30-50 years of age
-1:1
Sacrococcygeal chordoma
age, incidence
rep ~40% of all sacral tumors
- peak age 40-60 yrs
- 2:1 M
Spheno-occipital chordoma
age, incidence
Peak age: 20-40 yrs
-1:1
Vertebral chordoma
age, incidence
affects younger age pts
- 2:1 M
- more aggressive than sacral or cranial types
Multiple myeloma
age, incidence
usually 5th-8th decade
- 75% of pts are bw 50-70 yrs
- 2:1 M
Osteosarcoma
age, incidence
bimodel distribution 10-25 yrs of age and >60 yrs of age
-3:2 M
Chondrosarcoma
age, incidence
usually over 50
-2:1 M
Ewing’s sarcoma
age, incidence
mc 10-25 yrs, peak 15 yrs
-3:1 M
