A number of conditions are in the differential diagnosis of testicular torsion in a pediatric male.
Presentation:
(1) scrotal swelling and erythema
(2) scrotal pain
Common conditions in the differential diagnosis of testicular torsion:
(1) torsion of the appendages of the testis
(2) epididymo-orchitis
(3) trauma
Less common conditions:
(1) acute idiopathic scrotal edema (AISE)
(2) hydrocele
(3) scrotal hernia
(4) testicular tumor
(5) Henoch-Schoenlein purpura
(6) thrombosed varicocele
(7) familial Mediterranean fever (FMF)