"Geiger et al. have described the “fountain sign,” a novel finding on colour Doppler interrogation which is highly suggestive of the diagnosis 7. The “fountain” depicted on transverse imaging of the scrotum is due to markedly increased hypervascularity in the scrotal wall which derives its blood supply from branches of the deep external pudendal and internal pudendal arteries via the anterior and posterior sacral arteries."
"IgA vasculitis, previously known as Henoch-Schönlein purpura: in the setting of a paediatric patient with joint pain and rash 8"
"History and etymology"