Sunday, February 5, 2023

A small subcutaneous mass? Ultrasound scan to the rescue.

A small subcutaneous mass on abdomen. 


It measures a little over 2 cms in maximum diameter. 
It is mildly hyperechoic. Mostly homogeneous. 
Not tender or painful. Power Doppler ultrasound shows no significant vascularity. 
The first differential diagnosis here is:
Subcutaneous lipoma. 
2nd possibility: fibroma
Subcutaneous lipoma is usually small in size, usually less than 3 cms. 
Deep lipoma can be quite large, even > 7 cms. 
Lipoma is a benign mass and follow up ultrasound is usually done to look for changes in shape and size. The possibility of malignant change is very small. 

Final diagnosis: subcutaneous lipoma.

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