A 25-year-old male, right-hand-dominant, baseball pitcher experienced left Inguinal pain and paresthesia in the anterolateral thigh during pitching practice The symptoms persisted approximately 1 year...

A 25-year-old male, right-hand-dominant, baseball pitcher experienced left Inguinal pain and paresthesia in the anterolateral thigh during pitching practice The symptoms persisted approximately 1 year and gradually worsened 2 months before he was seen by you. On examination the patient has local tenderness just medial to the anterior superior illac spine, There are no other neurologic findings. There are no abnormal findings on plain radiographs of the pelvis and lumbar spine.

a) What would be the possible diagnosis of such patient?

b)What would  be the possible cause diagnosis?