Talocalcaneal Fibrous Coalition

Clinical History:
This is a 60-year-old male who presented with bilateral feet pain for five years. The pain was worse on the right and has been increasing recently. Sometimes he states that he cannot walk because the pain is so severe. Recently, he has noticed increased swelling.

Diagnosis:
Talocalcaneal Fibrous Coalition

MR Technique:
3.0 T scanner (Siemens Verio) using an 8-channel knee coil. Image 1: coronal P -weighted image (TR/TE 3440/32 ms, scan time 3 min 45 sec, slice thickness 3 mm); Image 2: coronal T1 TurboIR with Magnitude Display (TIRM) using iPAT with a factor of 2 (TR/TE/TI 6720/32/220 ms, scan time 3 min 53 sec, slice thickness 3 mm); Image 3: sagittal T2 Turbo Spine Echo (TSE) using iPAT with a factor of 2 with a base resolution of 512 (TR/TE 4440/76 ms, scan time 3 min 53 sec, slice thickness 3 mm); image 4:sagittal T! TSE using iPAT with a factor of 384 (TR/TE 921/20 ms, scan time, slice thickness 3 mm).

Imaging Findings:
Fibrous coalition of the middle facet is suggested in view of the hypertrophy of the middle
facet (Images 1, 2), adjacent extensive bone edema in the talus (Image 3) and calcaneus
(Image 2), along with hypertrophy of the talar head and a talar beak (images 3-4).