Notes in 02 Arthritis

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Published	05/01/2023	Musculoskeletal Imaging: ArthritisThe hallmark of arthritis is cartilage destruction, which may be evident on radiographs as {{c1::joint space narrowi…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisOsteoarthritis of the hand most commonly involves the {{c1::DIP}} joint.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Heberden::Bouchard or Heberden}} node is from large osteophytes around the DIP.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Bouchard::Bouchard or Heberden}} node is from large osteophytes around the PIP.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Erosive osteoarthritis}}Yellow arrows: {{c2::Central::Central or Marginal}} erosion with {{c2:…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisThe {{c1::Grashey}} view best demonstrates glenohumeral joint space narrowing.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisMost common joint affected by osteoarthritis in the foot is the {{c1::metatarsophalangeal}} joint of the great toe.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Osteoarthritis}} of the first metatarsophalangeal joint can lead to a wear and tear disorder known as {{c1::ha…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisWhite arrow: Dorsal {{c1::beaking}} which is known as the {{c2::talar beak}} sign. This finding is typically seen wi…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisOsteoarthritis of the hip joint most commonly has a {{c1::superolateral}} migration pattern.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn {{c2::rheumatoid arthritis::  Rheumatoid arthritis or Osteoarthritis}} of the hip, the&n…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisOn a hip radiograph, if axial cartilage space loss is seen without osteophytes, {{c1::rheumatoid arthritis::Rheumato…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisOn a hip radiograph, if axial cartilage space loss is seen with osteophytes, {{c1::osteoarthritis::Rheumatoid arthri…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisThe sequence of events that lead to spine degeneration is characterized by:1. {{c1::Dessication}} and collapse of in…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Gas}} in the intervertebral disc is known as {{c2::vacuum}} phenomenon and is pathognomonic for degenerative c…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Kummell}} disease is an eponym for {{c1::avascular necrosis}} of the vertebral body.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: Advanced {{c1::Kummel}} diseaseFindings: Anterior wedge fracture with intravertebral {{c2::gas}}Pathology…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiffuse idiopathic skeletal hyperostosis (DISH) is defined as flowing bridging anterior osteophytes spanning at leas…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Diffuse idiopathic skeletal hyperostosis (DISH)::Other osteophytotic disease of the spine}} is associated with…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisWhat are the radiographic and CT findings of Rheumatoid arthritis?{{c1::Marginal::concentric or marginal}} eros…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisErosive arthritis of the DIP is likely due to {{c1::osteoarthritis::osteoarthritis or Rheumatoid arthritis}}.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisEarly erosions from rheumatoid arthritis is typically seen in the:{{c1::Radial::Radial or Ulnar or Radial and ulnar}…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisBoutonniere deformity is {{c2::PIP}} {{c1::flexion}} and {{c2::DIP}} {{c1::hyperextension}}.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Swan neck}} deformity is {{c3::PIP}} {{c1::hyperextension}} and {{c3::DIP}} {{c1::flexion}}.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Carpal}} ankylosis is more common in {{c1::juvenile idiopathic arthritis::rheumatoid arthritis or juvenil…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisRheumatoid arthritis in the feet most commonly involve the {{c1::metatarsophalangeal}} joint and the {{c2::talocalca…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisYellow arrows: {{c1::Protrusio}} deformity with acetabular head projecting past the medial {{c2::ilioischial}} line.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisName the most common causes of this finding:Mnemonic = PROTrusio acetabuliP = {{c1::Paget disease}}R&…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Rheumatoid arthritis::Rheumatoid arthritis or osteoarthritis}} tends to have {{c1::symmetrical::asymmetri…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::rheumatoid arthritis with secondary osteoarthritis:: Rheumatoid arthritis or Osteoarthritis}}Red ar…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Atlantoaxial (C1-C2)}} subluxation is a characteristic imaging finding of Rheumatoid Arthritis.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn rheumatoid arthritis, {{c2::anterior}} atlantoaxial subluxation is caused by inflammation and resultant laxity of…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisADI distance of >{{c1::2.5}}mm is considered atlanto-axial subluxation in adults and >{{c2::5}}mm in children.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Vertical::Anterior or Vertical}} atlantoaxial subluxation results from C1-C2 facet {{c2::erosion}}, leading to…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn Rheumatoid Arthritis, {{c1::posterior::Anterior or posterior or superior}} atlantoaxial subluxation is usually du…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn {{c2::seronegative spondyloarthropathies::arthropathy}}, sacroiliitis is only seen on the portion that is a …
Published	05/01/2023	Musculoskeletal Imaging: ArthritisWhich of the 4 seronegative spondyloarthropathies would present specifically with this patttern:{{c1::Inflammatory b…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisWhich of the 4 seronegative spondyloarthropathies would present specifically with this patttern:{{c1::Reac…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn septic arthritis of the sacroiliitis joint, the abscess tends to present on the {{c1::anterior::anterior or …
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Ankylosing spondylitis}}Red Arrow: {{c2::Shiny corner}} sign which is {{c6::sclerosis}} of prior {{…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Ankylosing spondylitis}}Red Arrow: Diffuse bony bridging forms the {{c2::Bamboo spine}} sign.Yellow…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Ankylosing spondylitis}}Green arrow: Pseudoarthrosis which is known as an {{c2::Anderson}} Les…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Ankylosing spondylitis::Seronegative spondyloarthropathy}} is associated with pulmonary fibrosis and aortitis.…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Psoriatic arthritis}}Red arrows: {{c2::Pencil}}-in-{{c2::cup}} erosions of the {{c3::DIP}} and {{c3…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Psoriatic::Psoriatic or Rheumatoid}} arthritis has preserved {{c1::mineralization}}.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Arthritis mutilans}} variant of psoriatic arthritis can cause the main-en-lorgnette (opera glass hand) deformi…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Psoriatic}} arthritisFindings: {{c3::Osteosclerosis}} of the phalanx AKA "{{c2::Ivory}} phalanx"
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn {{c2::reactive (Reiter's)}} arthropathy, the {{c3::posterior-superior}} aspect of the {{c1::calcaneus::foot bone}…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Reactive Arthropathy (previously called Reiter's)::Arthropathy}}Findings: {{c2::Erosions}} and…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::SLE}} arthropathyYellow arrows: Multiple {{c2::subluxations}} of MCPs and PIPs witho…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis:  Late stage {{c1::SLE arthropathy}} Findings: {{c3::Subluxations}} without {{c2::erosions}…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Jaccoud}} arthropathy and {{c2::SLE}} share the same type III hypersensitivity mechanism resulting in identica…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDescribe this finding: {{c1::Acro-osteolysis::Resorption of the terminal phalanx}} with soft tissue calcification.Di…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisConnective tissue disorder with this radiograph: {{c2::Scleroderma}}Yellow arrows: Soft tissue and periarticular {{c…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Calcium pyrophosphate crystal arthritis}} and {{c1::gout (monosodium urate)}} are the two most common crystal …
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Chondrocalcinosis}} of the knee secondary to {{c2::Calcium pyrophosphate (CPP)}} diseaseFindings: C…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Calcification}} of the {{c1::hyaline::articular}} cartilage or {{c1::fibro::meniscal/labral}} cartilage is the…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Chondrocalcinosis AKA CPP}} arthritis Findings: SLAC Wrist due to advanced disease ({{c1::Chondroca…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Osteophytes of MCPs and chondrocalcinosis of all MCPs (CPP Arthropathy)}}
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Gout}} is {{c3::negatively::+/-}} birefringent with {{c2::needle-like}} crystals.
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::CPP arthritis}} is {{c3::positively::+/-}} birefringent with {{c2::rhomboid}} crystals.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Gout}} Findings: {{c2::Sharply marginated}} {{c3::erosions}} and {{c2::overhanging}}&nbsp…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Gout::Arthropathy}}Findings: There are two echogenic lines in parallel. The outer line representing…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Marginated}} {{c2::erosions}} with {{c1::overhanging}} {{c2::margins}} are the radiographic hallmarks of gout.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisTophaceous gout refers to deposition of urate crystals, inflammatory cells, and foreign body giant cells in {{c1::so…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c2::Gout}}Findings: {{c1::Tophaceous}} {{c2::gout}} as demonstrated by soft tissue depos…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Gout}}Findings: Post processed {{c2::dual::Single or Dual}} energy CT imaging demonstrati…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Calcific tendinitis}} of the pectoralis major tendon with {{c2::erosion}} into the humeral diaphysi…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisUltrasound-guided {{c1::barbotage}} is an effective treatment for {{c2::calcific tendinopathy}}.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisCalcium hydroxapatite deposition in the wrist most commonly occurs at the {{c1::flexor carpi ulnaris}} tendon.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Calcific tendinopathy::Calcific tendinopathy or Chondrocalcinosis}} Findings: FCU tendinopathy…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Calcific tendinopathy}} of the longus colli muscleYellow arrow: {{c2::Globular/amorphous}} minerali…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Intra-articular Calcium hydroxyapatite (typically deposition is extra-articular)::Joint fluid conta…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDifferentials: {{c1::CPPD}} and {{c3::hemochromatosis}}Yellow Arrows: {{c2::Hook}}-like osteophytes at the…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisCPPD and hemochromatosis both tend to have "{{c3::hook}}-like" osteophytes. Differences are:{{c2::CPPD}} tends …
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Acromegaly}}Yellow arrows: {{c2::Spade}}-like enlargement of the tufts
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn contrast to all other arthropathies, joint spaces are widened in early stage of {{c1::acromegaly::arthropathy}} d…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Ochronosis:: UA shows alkaptonuria}}Findings: {{c2::Intervertebral disc}} calcifications at {{c3::e…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Skeletal sarcoidosis::MSK Manifestation of a typically systemic disease}}Findings: {{c2::Lace}}-lik…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisHemophiliac arthropathy: Characteristic appearance of the elbow is an enlarged {{c1::radial head}} and widened {{c1:…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisIn {{c1::Hemophiliac}} arthropathy, {{c2::synovial hypertrophy}} and {{c3::hyperemia}} causes epiphyseal {{c4::enlar…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c2::Hemophiliac arthropathy}}Findings: Characteristic appearance in the knee is a {{c3::squar…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Pseudotumor}} of hemophiliaSmall arrows: Bony {{c3::scalloping}} and pressure {{c4::erosion}}Larger…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Still}} disease is a variant of juvenile idiopathic disease affecting children younger than 5 with presentatio…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisRadiographic hallmark of {{c2::juvenile idiopathic arthritis}} is abnormal {{c3::bone length}} or {{c…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Juvenile idiopathic arthritis::Pediatric patient}}Yellow arrow: {{c2::Shortened}} fifth metacarpal …
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c1::Juvenile idiopathic arthritis::Arthropathy}} and hemophiliac arthropathy appear similar due to hyperemia …
Published	05/01/2023	Musculoskeletal imaging: Arthritis{{c1::Klippel-feil}} syndrome is a failure of {{c2::cervical segmentation}}.
Published	05/01/2023	Musculoskeletal Imaging: ArthritisWhat are the 5 D's of Hypertrophic neuropathic arthropathy?D = {{c1::Destruction}}D = {{c2::Dislocation (subluxation…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Atrophic::Atrophic or hypertrophic}} neuropathic neuropathyFindings: {{c2::Sharp}} margins along pr…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisDiagnosis: {{c1::Psoriatic}} arthritisDescribe the 3rd MTP joint: Joint subluxation with {{c2::telescoping}} di…
Published	05/01/2023	Musculoskeletal Imaging: Arthritis{{c2::Rhematoid::Psoriatic or Rheumatoid}} arthritis does not have preserved {{c1::mineralization (has ost…
Published	05/01/2023	Musculoskeletal Imaging: ArthritisTrash Mnemonic (from Core) for asymmetric and symmetric seronegative spondyloarthopathies:P = Psoriatic arthritisA =…
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