A

Normal anatomy of Kager's fat pad. Lateral radiograph (A) and illustration (B) of ankle show triangular radiolucency (A) and structure of Kager's fat pad. On radiograph, anterior border (arrowheads, A) is posterior aspect of flexor hallucis longus muscle and tendon, posterior border (asterisk, A) is Achilles tendon, and floor (arrow, A) is superior surface of calcaneus.


http://www.ajronline.org/cgi/content/full/182/1/147

A proton density-weighted axial view demonstrates the normal semilunar appearance of the patellar tendon, with a convex anterior border (arrow) and well-defined posterior rim.

T1-weighted sagittal image in a patient with a normal patellar tendon reveals a homogeneously low signal intensity appearance to the tendon (arrows), which appears symmetrical in appearance throughout its course.

http://www.radsource.us/clinic/0612