by Tim Milligan | Nov 11, 2015 | Crystal-induced Arthropathies
Acute Pseudogout (Calcium Pyrophosphate Dihydrate Crystals) Polarized light microscopy showing calcium pyrophosphate dihydrate crystals. Note the positive bifringence (blue) of rhomboid-shaped crystals versus the needle-shaped and negatively birefringent (yellow)...
by Tim Milligan | Nov 11, 2015 | Crystal-induced Arthropathies
Acute Gout (Monosodium Urate Crystals) Polarized light microscopy showing monosodium urate crystals. Note the negative birefringence (yellow) of needle-shaped crystals versus the rhomboid-shaped and positively birefringent (blue) crystals of crystal pyrophosphate...
by Tim Milligan | Nov 11, 2015 | Crystal-induced Arthropathies
Acute Gouty Arthritis Classic inflammation resembling cellulitis of the first metatarsophalangeal (MTP) joint, referred to as podagra. The first MTP is the most common site of initial involvement. (Courtesy Dr. A. Fam)
by Tim Milligan | Nov 11, 2015 | Connective Tissue Disorders
Prominent scaly fixed erythema, flat or raised over malar eminences, tending to spare nasolabial folds (“butterfly rash”).
by Tim Milligan | Nov 11, 2015 | Connective Tissue Disorders
Sclerodactyly showing bilateral swelling, a shiny wax-like appearance, and tapering of the fingers. May also note digital ulcers, nailfold telangiectasia, and periarticular calcinosis. Flexion contractures present in advanced disease. (Courtesy Dr. A. Fam)
by Tim Milligan | Nov 11, 2015 | Connective Tissue Disorders
Note subluxation of digits at the metacarpophalangeal (MCP) joints and rheumatoid nodules at 2nd and 3rd MCPs. (Courtesy of Dr. D. Jerome)
