I struck my elbow against a projection on a wall.
The fluid accumulation is hemispherical, approximately 3 inches in diameter (rough circular in its dimensions) and at full extension of the elbow, approximately 1 inch in height.
At full flexion, it is not evident.
Thank you, Dr. Chip.
I believe that I will allow this condition time to resolve itself.
I grsatly appreciate your advice and help, Chip.