Anterior angulation of the coccyx and bilateral accessory sacroiliac joints
Diagnosis certain
Presentation
Coccydynia. No history of trauma.
Patient Data
Age: 35 years
Gender: Female








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Sharp forward angulation of the coccyx between its 1st and 2nd segments.
Incidentally noted bilateral accessory articulation between the posterior aspect of the sacrum (lateral to the second dorsal sacral foramen) and an osseous projection of the iliac bone.
Case Discussion
CT findings of anterior angulation of the coccyx (type III) and bilateral accessory sacroiliac joints.