Medical Must-See: Doctors ace diagnosis of teen’s backhander

A red lump on a 15-year-old’s right hand, half the size of a tennis ball, set Texan doctors up for rare diagnosis of extraosseous Ewing’s sarcoma.
The Hispanic teen presented to ED with a one-day history of “sharp, stabbing 10/10 pain” around the oval-shaped mass, which worsened with manipulation of his fingers.
He told doctors that the lump had grown slowly over seven months, with occasional tenderness, but that the pain had skyrocketed in the past 24 hours.
“The pain was accompanied by numbness and tingling along his right arm that extended to his thumb and second and third digits,” the case authors wrote in Cureus.