Scrotum Swelling Causes / Differential Diagnosis Mnemonic

THE THEATRES: 

Torsion
Hernia
Epididymytis, orchitis Trauma
Hydrocoele, varicocele, hematoma Edema
Appendix testes (torsion, hemorrhage) Tumour
Recurrent leukemia Epididymal cyst
Syphilis, TB