Synovial herniation pit
Post minor trauma
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No fracture or malalignment. Small round lucency in the right femoral neck with a well-defined thin cortical margin in keeping with a synovial herniation pit.
Typical appearance and location for a synovial hernation pit which is also known as Pitt's pit, ironically named after the man who described it initially 1.
- 1. Pitt MJ, Graham AR, Shipman JH et-al. Herniation pit of the femoral neck. AJR Am J Roentgenol. 1982;138 (6): 1115-21.