Fig. 13From: Identifying the deceiver: the non-neoplastic mimickers of genital system neoplasmsTesticular IgG4-related disease (IgG4-RD). A 35-year-old male with known systemic IgG4-RD presenting with new onset of blunt testicular pain and bilaterally enlarged testes. Ultrasound image demonstrates multiple irregular shaped hyperechoic lesions (arrowheads) scattered within both testes. As the process was bilateral and the patient had known IgG4-RD, a non-operative approach was elected. Intense medical treatment provided immediate relief and follow-up US study 6Â months after the first US revealed stable findingsBack to article page