<unk> , named after Swedish surgeon Sven Christian<unk>  (1880-1959), and Christian Magnus Falsen<unk><unk>  (1866-1930), a Norwegian physician, is apophysitis of the inferior pole of the patella. It is analogous to Osgood–Schlatter disease which involves the upper margin of the tibia. This variant was discovered in 1908, during a winter indoor Olympic qualifier event in Scandinavia. Sever's disease is a similar condition affecting the heel. This condition called<unk>  was described independently by<unk><unk>  in 1921 and<unk>  in 1922.
Sinding-Larsen and Johansson syndrome
Dahlberg Borer Newcomer syndrome
Alice in Wonderland syndrome
Smith–Fineman–Myers syndrome
Naegeli–Franceschetti–Jadassohn syndrome
Grisel's syndrome
Wallis–Zieff–Goldblatt syndrome
caption of Plummer–Vinson syndrome