
Nils Westermark
Nils Westermark (1892–1980), Swedish radiologist and Olympic silver medallist, remembered for the Westermark sign in pulmonary embolism.

Nils Westermark (1892–1980), Swedish radiologist and Olympic silver medallist, remembered for the Westermark sign in pulmonary embolism.

Palla sign (1983) right descending pulmonary artery enlargement and 'sausage-shaped' appearance as a potential sign of pulmonary embolism on chest XR

Antonio Palla (born 1949), Italian respiratory physician known for Palla sign and major contributions to pulmonary embolism and respiratory medicine.

Hampton hump: pleural-based pulmonary infarction on chest X-ray, with historical origins, radiographic features, pathology and modern PE relevance.

Aubrey Otis Hampton (1900–1955), American radiologist known for Hampton hump and Hampton line, with major contributions to chest and clinical radiology.

Chang sign (1965) Dilated descending pulmonary artery associated with pulmonary infarction and pulmonary hypertension following pulmonary embolism

Capener triangle is an early AP radiographic sign of SCFE, showing loss of the normal triangular overlap between the femoral neck and acetabulum.

Gissane angle. Measurement on lateral calcaneal radiographs, normal values, clinical use, limitations and historical development.

Sophus von Rosen (1898-1996), Swedish orthopaedic surgeon. Pioneered neonatal hip screening and developed the von Rosen splint and Andrén–von Rosen view.

Andrén–von Rosen view is an abduction–internal rotation radiograph used in DDH. Review technique, von Rosen line, pitfalls and history.

Von Rosen splint is an aluminium abduction splint for neonatal hip instability. Review history, design, evidence, complications and history.

Iselin disease is traction apophysitis of the fifth metatarsal in adolescents. Review diagnosis, imaging, management, history and eponym origins.