Rib

You see here a longitudinal scan of a rib. The patient had acute pain in the anterior thorax wall. What are your findings?

Pain in the distal ip joint

what are your findings in this palmar longitudinal view of the pip and dip? describe the structure indicated with the arrows and the asterisk

Sonographic appearance of crystals

Comparison of sonographic appearance of normal control, gout and chondrocalcinosis in knee joints. Suprapatellar, transverse view in flexion. Schematic illustrations on left. Top: anechoic (black) layer of hyaline cartilage (c) overlying bony contour of distal femur (b). Middle: double contour sign. Hyperechoic (bright), slightly irregular layer of crystal deposits (open arrowheads) overlying anechoic hyaline cartilage (c) and bony contour of distal femur (b). This patient had crystal-proven, untreated gouty arthritis. The hyaline cartilage is thin in this 88-yr-old individual. Bottom: hyperechoic, crystalline material (asterisks) is layered in the centre of the anechoic hyaline cartilage (c). This layer parallels the outline of the bony cortex (b). Calcium pyrophosphate crystals were found on aspiration.

source: http://www.medscape.com/viewarticle/561112_4

metacarpophalangeal joint seen in longitudinal section

You see 3 images of three different MCP joints. What can You see?

What is Your diagnosis?

You see a combined high-resolution ultrasound and power doppler image of a metacarpophalangeal joint seen in longitudinal section.

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