Lecture paget’s disease of the spine
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Transcript of Lecture paget’s disease of the spine
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Paget’s Disease of the Spine
Spine conference Friday February 5th, 2015
Upper Chesapeake Medical Center
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42 yo man cc: back pain HPI: slip and fall 1/8/16 seen at pat 1st then referred to ER due to L2 fx, CT obtained in ER Dx: fx PMH: very healthy PSH: none FH: bro passed away ca SH: manager married 2 children nonsmoker Meds: none Exam 6’0” 187 lb nonfocal axial pain
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HEMAGIOMAOrganizedTrabeculae orientationMaximized along stressAreasprominent trabecular patternsclerotic vertebra with vertical trabeculae: Corduroy signlytic calvarial lesions with spoke-wheel appearanceirregular and lytic in long bones, with a honeycomb appearanceJail house vertebra
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Sir James Paget 1814-1899St Bartholomew Hospital LondonBritish Surgeon and PathologistBreast Cancer description, inflammation of nippleosteitis deformans.As a medical student in his first winter session, he discovered the pathogen for trichinosis, a parasitic disease caused by Trichinella spiralis, a minute roundworm that infests the musclesof the human body, and which is usually acquired by eating infected pork. Paget was friends with Charles Darwin and Thomas Henry Huxley
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Prof. Stuart Ralston - Solving the Mysteries of Paget's DiseaseThe University of Edinburgh 2011https://youtu.be/9mogcgQqbxg
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Uncoupling of the normal equilibrium of bone formation and resorption
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plywood
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OsteonHaversean canalOsteocytesLamellar boneContiguous plates
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Cutting cones
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Negative CT chest/abd/pelvisMetastatic w/u
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L2 L2L3
L3L3L4
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epidemiology7-10x more
1970’s England highest ratesRates now decreased by 50% in general; rare <50 yo; mean 59 +/- 14;Polyostotic>monostotic; pelvis,lumbar,femur, tspine, skull, tibia rare in hands/feet
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1. Mixed lucent and dense areas2. ENLARGES the bone itself3. loss of junction of cortical and cancellous areas4. deformity
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Blade of grassOsteoclastic phaseLong bone v-shaped lesion
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Mixed stage lysisand sclerosis
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Sclerotic phaseEnlarged bones
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PAGETS DISEASE OF BONE
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Intranuclear inclusion bodies in an electron micrograph 9,000 magnification
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Paramyxovirus (mumps) causes intranuclear inclusion bodies
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1995-2008
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BISPHOPHONATES
• Nitrogen-containing bisphosphonates (N-BPs)
1. Alendronate Fosamax (Merck, Whitehouse Station, New Jersey)
2. Ibandronate Boniva (Roche, San Francisco, California)
3. Pamidronate Aredia (Novartis, East Hanover, New Jersey)
4. Risedronate Actonel (Warner Chilcott, Rockaway, New Jersey)
5. Zoledronate Reclast (Novartis, East Hanover, New Jersey)
• Non-nitrogen-containing bisphosphonates (n-BPs)
1. Etidronate Didronel (Proctor and Gamble, Cincinnati, Ohio)
2. Tiludronate Skelid (Sanofi Aventis, Bridgewater, New Jersey
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Femur fracture in women
• Shane E (May 2010). "Evolving data about subtrochanteric fractures and bisphosphonates". N. Engl. J. Med. 362 (19): 1825–7
(12 in 14,195 women) compared to the common hip fractures (272 in 14,195 women)
Odvina CV, Zerwekh JE, Rao DS, et al. Severely suppressed bone turnover: apotential complication of alendronate therapy. J Clin Endocrinol Metab2005;90:1294–1301
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Malignant transformationof paget’s in this case osteosarcoma
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Thanks
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