Time to play! #16
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My guess it is a Bates body – incidental mineralizing region of necrotic fat
if it’s a female than postoperative scar/fibrosis/granuloma after right ovary removal might be possible.
Other differential could be lymphadenopathy of the lumbar aortic lymphadenopathy
FNA could aid in diagnosis
i think that it is an incidental finding. Most of the anal adenocarcinomas go to the sacrum linph nodes, and it doesen´t appear to have mass effect
ovario calcificado o necrosis grasa????????????
It’s location caudal to right kidney, could be ovary – judging by the caudal bit of the kidney it doesn’t appear enlarged. Appears hyperechoic with acoustic shadowing suggesting mineralisation (anal gland adenocarcinomas often cause hypercalcaemia?) compared to those I’m used to seeing (usually anoestrus) and also has a hypoechoic area within it. I’d be concerned about metastases or mineralisation due to the acoustic shadowing. Looking forward to hearing the real answer!
The shadow is a dirty shadow which is suggestive of gas. The location is in the area of the ascending colon. I would want to find a clear image of the colon and try to follow it to this area to see if it is related. The hypoechoic focal area in the hyperechoic region is odd looking and may represent a lesion even if this is the colon.