THE PATELLA
Apart from trauma and cartilage disease, disorders of the patella are uncommon.
Variants include :
      • bipartite patella
      • Dorsal patellar defect.

Other lesions include:
      • Gout. Consider with any cytis type lesion affecting the bone and tendon attachments
      • Infection
      •Pagets Disease: becoming less common
      • Chondroblastoma . Most common bone tumour

See also here