Gamuts
Lytic patellar lesion
May Be Caused by
Common
Chondroblastoma
Chondromalacia
Dorsal defect of patella
Giant cell tumor
Osteochondritis dissecans
Subchondral cyst
Uncommon
Aneurysmal bone cyst
Bone cyst
Brown tumor of hyperparathyroidism
Enchondroma
Eosinophilic granuloma
Gout
Hemangioma
Intraosseous ganglion
Langerhans cell histiocytosis
Metastasis
Multiple myeloma
Osteoblastoma
Osteomyelitis
Plasmacytoma
Tuberculosis