RADD 2711 Midterm Comprehensive Notes

RADD 2711 Midterm Comprehensive Notes - S k e l e t a l R a...

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Unformatted text preview: S k e l e t a l R a d d A Dr. Melissa Loschiavo – read yochum and rowe Please don’t try to sell my notes at ameripress kids.. love ya! • Roentgen signs of bone disease • Categories of bone disease – once you Fnd a lesion put it into one of these categories o C.A.T.B.I.T.E.S. o C - congenital o A - arthritis o T - trauma o B – blood (hematological) o I - infection o T - tumor o E – endocrine, nutritional, metabolic o S - soft tissue Preliminary analysis 1. B e h a v i o r o f l e s i o n s i. Osteolytic lesion – more eaten away (lytic =lucent lesion- will be black on the Flm) 1. Geographic – if you have a osteolytic lesion it’s the best one to have a. Destructive lesion b. Sharp borders i. You can draw the borders c. Less aggressive d. Slow growing, benign e. Narrow zone of transition f. Greater than 5 mm in diameter 2. Moth-eaten Clinical data Remarks Age Sex Race History Number of lesions Symmetry of lesions Systems involved <20 yoa vs >50yoa predominance, M v ¡ predisposition familial, clinical monostotic vs polyostotic equal vs haphazard benign vs malignant 1 a. Destructive b. Ragged borders c. More rapid growth – little faster than geographic d. May be malignant e. 2-5mm in diameter 3. Permeative (pinhole) a. Ill- deFned b. “worm holes” c. wide zone of transition i. can’t tell where it changes from disease bone to normal bone d. implies aggressive malignancy e. high risk of a pathological fracture f. <1 mm ii. Osteoblastic lesion 1. Aka osteogenic 2. Refers to a lesion that produces new bone where it should not be 3. Very white on the Flm a. Pick the brightest one* b. Won’t test on something ‘uncertain’ 4. What causes it: a. Pagets b. Osteosarcoma iii.Mixed lesion 1. Lucent and blastic 2. Not to many like this Analysis of lesion Characteristics Remarks 2 1. Characteristics of the location i. Helps to give you an answer or at least things to consider 2. Extra osseous lesions i. Anything that sticks out of the bone ii. CalciFcation can occur in a muscle due to repetitive hitting 3. The larger the lesion is the more likely it is to be aggressive or malignant 4. Margination i. Narrow zone of transition 1. Sharp margins 2. Can see where the lesion starts and stops 3. *Geographic ii. Wide zone of transition 1. DifFcult to ascertain where the lesion starts and stops 2. *Moth-eaten / permeative iii.Sharp or short zone of transition (=benign) iv.Poorly deFned or long zone of transition (= infection or malignant) Skeletal location Position of bone Site of origin Shape Size Length margination E.g. sacrum, skull metaphysis (wider portion of long bone – adjacent to epiphysis), epiphysis (rounded end of a long bone), diaphysis (the long part of the bone), eccentric (on side), central Medullary, cortical, periosteum, extraosseous, intraosseous Oval, elongated E.g. 1mm, 2cm E.g.1 cm Well-deFned, ill-deFned 3 v. Sclerotic margin – typical of infection 5. Cortex i. Cortex intact (usually a good sign) ii. Cortex destroyed (eroded or penetrated) = infection or ii....
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This note was uploaded on 11/23/2011 for the course RADD 2711 taught by Professor Melissaloschiavo during the Winter '11 term at Life Chiropractic College West.

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RADD 2711 Midterm Comprehensive Notes - S k e l e t a l R a...

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