Tietze syndrome

noun

Tie·​tze syndrome ˈtēt-sə- 

variants also Tietze's syndrome

ˈtēt-sə(z)-

or Tietze disease or Tietze's disease

: a rare condition of unknown cause that is characterized by unilateral inflammation and localized swelling of costochondral cartilage of one of the uppermost ribs and especially the second and third rib

… despite its benign nature, Tietze syndrome can cause significant discomfort and mimic more serious conditions such as acute myocardial infarction.

—Berley Alphonse et al., Cureus