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<v ->Thank you very much.

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And again, welcome.

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Good morning, good afternoon, good evening.

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I really appreciate that we have so many people

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who are attending each day.

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And as I've done in the past,

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lemme take a moment to introduce the Brazilian Scholar

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who will join me today as Marcelo de Abreu.

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When I look at Marcelo,

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I realize how long that I have been

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at this particular occupation,

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because not only did I train Marcelo a bit,

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but I actually trained his father, Armando.

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So he's the second of the de Abreu's to join us.

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Marcelo has an incredible track record.

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He is a member of the International Skeletal Society.

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He is currently in Davos, Switzerland,

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as part of the international team

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presenting a course there today.

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And as you've seen throughout these first two days,

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there are many of the slides they have shown,

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have had his name at the bottom because you see,

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during his time with us

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he did an incredible amount of research.

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So I appreciate very much

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that Marcelo is joining us from Switzerland.

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We're gonna cover an awful lot of material today,

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and here's the list of some of the topics,

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not all that we will be covering.

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We're gonna deal with crystal induced arthropathy,

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septic arthritis, osteoarthrosis, and others.

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And then we're gonna discuss

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a variety of tumors or tumor-like disorders

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that involve joints or the tissues around joints.

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So let's get started.

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Let's initially discuss crystal induced arthropathy.

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This slide gives you a list of some,

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not all of the crystals

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that can involve the musculoskeletal system,

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and many of these can localize within joints.

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Now, the checks that you see, the red checks,

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are around three of the crystal diseases

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that I will be discussing during this particular segment,

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I will not discuss calcium oxylate

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or some of the other less common crystals

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that may involve the system.

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We'll deal with monosodium urate,

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calcium pyrophosphate dihydrate,

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and basic calcium phosphate crystals and their effects.