Department of Diagnostic Radiolgy, College of Medicine, Yonsej University
ABSTRACT
PURPOSE : To determine ultrasonographic findings of mumps epididymo-orchitis to differentiate from othercauses of epididymo-orchitis. MATERIAL & METHODS : We retrospectively analyzed the sonographic findings of 11cases of mumps epididymo-orchitis in 10 patients. US findings were analyzed in terms of echogenicity, size,hydrocele, and calcification. The age of patients ranged from 12 to 27 years (average 16.6 years). RESULTS : Atotal of 11 lesions were involved testis ; 2 lesions were located in left, 7 lesions in right, and bilaterally inone patient. Sonographic findings consisted of diffusely enlarged homogenous hypoechoic in 6 cases, diffuselyenlarged inhomogenous hypoechoic in 3 cases, and diffusely enlarged isoechoic testis in 2 cases. A total of 7cases were involved epididymis ; 5 cases were located in the head, and 2 in the tail. The sonographic finding ofepididymitis was enlarged epididymis with heterogeneous hypoechoic pattern. The hydroceles were also seen in 5cases. CONCLUSION : It is difficult to differentiate mumps epidydimo-orchitis from other infectiousepididymo-orchitis only on the basis of ultrasonographic findings, but the clinical history of mumps can behelpful in diagnosis of this disease.