Which scrotal pathology presents with blood in the scrotal sac, no increased vascularity on Doppler, and low-level echoes with septations?

Which scrotal pathology presents with blood in the scrotal sac, no increased vascularity on Doppler, and low-level echoes with septations?

• A. Hematocele
• B. Pyocele
• C. Hydrocele
• D. Varicocele

Answer: (A)

Recognizing the composition and appearance of scrotal fluid collections on ultrasound, along with Doppler clues, is key. A hematocele is a collection of blood within the tunica vaginalis, usually from trauma or post-procedural bleeding. On ultrasound it tends to be complex, with low-level echoes and sometimes septations as the clot organizes. Importantly, there is no intrinsic blood flow within the collection on Doppler, which helps distinguish it from vascular or infectious processes. In contrast, a hydrocele would appear as an anechoic, simple fluid collection without internal echoes or septations. A pyocele is an infected fluid collection and often shows complex echoes with debris and sometimes gas, and may have inflammatory changes in the scrotal wall. A varicocele consists of dilated venous channels around the cord that reveal venous flow on Doppler, not a free intratesticular or intravaginal fluid collection. So the combination of blood content, complex low-level echoes with septations, and absence of internal Doppler vascularity points to a hematocele.

Recognizing the composition and appearance of scrotal fluid collections on ultrasound, along with Doppler clues, is key. A hematocele is a collection of blood within the tunica vaginalis, usually from trauma or post-procedural bleeding. On ultrasound it tends to be complex, with low-level echoes and sometimes septations as the clot organizes. Importantly, there is no intrinsic blood flow within the collection on Doppler, which helps distinguish it from vascular or infectious processes.

In contrast, a hydrocele would appear as an anechoic, simple fluid collection without internal echoes or septations. A pyocele is an infected fluid collection and often shows complex echoes with debris and sometimes gas, and may have inflammatory changes in the scrotal wall. A varicocele consists of dilated venous channels around the cord that reveal venous flow on Doppler, not a free intratesticular or intravaginal fluid collection.

So the combination of blood content, complex low-level echoes with septations, and absence of internal Doppler vascularity points to a hematocele.