What are the Ultrasound and MRI findings of testicular hematomas?
On US, acute hematomas are isoechoic or hyperechoic relative to testicular parenchyma and may be difficult to detect, whereas subacute hematomas are more heterogeneous and hypoechoic relative to testicular parenchyma. Testicular hematomas do not have increased blood flow on Doppler US.
On MRI, acute hematomas have low signal intensity on T1-weighted and T2-weighted images, whereas subacute hematomas have high T1-weighted signal intensity and variable T2-weighted signal intensity. Testicular hematomas do not enhance with contrast administration.
Hematomas will generally decrease in size over time.
