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Unformatted text preview: Skeletal Rad B Dr. Fox L I N K T O F I N A L E X A M I N F O R M A T I O N Can get extra credit for submitting summary of journal article; see syllabus for details – must submit by mid- term week (week 6). Must come from an indexed, peer-reviewed journal. Rad Review – Mondays from 5-7 PM, review cases from radiology practice of Dr. Fox. Bone Tumors Classi¡cation system not found in Yochum & Rowe – see handouts. KNOW this to get the foundation for going forward!! General: 1. A tumor is an –oma; de¡ned as an abnormal cellular growth; growth of cells can be uncontrolled or can be controlled. If it’s controlled, called a benign tumor; benign = controlled and not malignant. Malignant is uncontrolled growth. Benign doesn’t mean insigni¡cant/forget about it! Some benign things will still destroy joints, etc. 2. Secondly, bone is a multi-cellular tissue. A n y c e l l f o u n d i n b o n e c a n p r o d u c e a t u m o r t h e r e . If it originates from the bone, it is classi¡ed as a bone tumor, whether it comes from b o n e c e l l s or not, i.e. tumors from cartilage cells are still bone tumors if it originates from the bone. 3. Malignant bone tumors = BAD, VERY BAD, but luckily they are not very common. (Below is from Week 2 but moved up here b/c this is general info about tumors – details from other weeks included in Classi¡cation outline below) 4 major questions to ask about tumors 1. What‘s the radiographic appearance? 2. Where is it located? (epiphysis, diaphysis, etc.) 3. What is patient’s age? Differential may be totally different based on age 4. Does it hurt or not? (symptoms) Site M o s t t u m o r s o c c u r i n t h e m e t a p h y s i s ! Remember what happens in the epiphysis and the diaphysis b/c shorter lists and know everything else happens in the metaphysis (table A on p. 2 of Handout 2 – my numbering system) *Learn these and know everything else is in the Metaphysis! Age B e n i g n t u m o r s : If it’s a benign originating tumor, almost always happen before the age of 30. If they are symptomatic, get discovered soon, but if not symptomatic, may not see until age 45; still benign and started in 30s, just not found until the 40s. One exception is the Giant Cell Tumor, largely benign, sometimes malignant – originate most of the time between 20-40 years old. ClassiFed in decades – 2 nd decade = teens, 3 rd decade = 20s, etc. – careful with this! W i t h m a l i g n a n t t u m o r s ( t o p 5 ) : 1. Multiple Myeloma – 40 years and beyond, most are 50-70 years old 2. Osteosarcoma and Ewing’s – majority under 30, peak is 2 nd decade (teenage years) 3. Chondrosarcoma and ¡ibrosarcoma – usually 30-60 years old (over 30 but not usually in an 80 year old) Metastasis can happen at any age but usually over 40....
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- Winter '11
- Benign tumor, bone tumor