thanks for the question. A mass in the abdomen, has first to be confirmed and characterized. Based on the findings, further examinations and an appropriate management plan to be developed.
An abdominal ultrasound
and probably an abdominal CT scan
could be compelling. depending on organ attained, further more organ specific biological and paraclinical evaluations.
I suggest you visit an internist for a more comprehensive evaluation this condition. Correlation of clinical findings and results from the tests shall be a corner stone in your management.
Thanks and hope this helps,
Thanks and best regards,