2-year-old, male neutered, American Staffordshire terrier. Previous history of haematuria. Castrated a few months ago on suspicion of prostatic problems. For the past 2 weeks, marked weight loss, apathy, vomiting and anorexia. A CT scan was performed.
Description
There is a mass with heterogeneous attenuation and ill-defined margins, located caudal to the urinary bladder, at the level of the prostate, with slight cranial extension towards the trigone of the urinary bladder. The latest shows a thickened and irregular surface (blue arrows). The mass is hypoattenuating, with multiple dystrophic mineralizations, and has a marked and heterogeneous contrast enhancement (pink arrows).
Moderate perilesional inflammation of the adjacent fat with small peritoneal nodules, showing a heterogeneous contrast enhancement (yellow circle).
The medial iliac lymph nodes are enlarged, with slightly heterogeneous contrast enhancement (blue arrows).
Diagnosis
- Prostatic lesion with possible invasion of the trigone of the urinary bladder, consistent with a neoplastic process (e.g. prostatic carcinoma, adenocarcinoma, etc.), most likely. Other causes such as severe chronic prostatitis (infectious or inflammatory) are less likely.
- The adjacent peritoneal changes are suggestive of tumoral infiltration (carcinomatosis) or focal peritonitis.
- Medial iliac lymphadenopathy, metastasis vs reactive.
No comment yet, add your voice below!