"heterogeneous contrast enhancement, enlargement and surrounding fluid 11,12."
"AP diameter"
"AP diameter"
"AP diameter"
"heterogeneous contrast enhancement, enlargement and surrounding fluid 11,12."
"vasculitides (e.g. IgA vasculitis, previously known as Henoch-Schönlein purpura)"
"submucosal or intramural haemorrhage (e.g. coagulopathy)"