Most common site of giant cell tumor is distal femur and proximal tibia. Patella is not a very common site of occurrence of GCT. This case report is of a 27 year old female having GCT of patella. She presented with 18 month history of anterior knee pain and 6 month history of mild swelling on anterior aspect. Radioclinicodiagnosis was made by doing X­ray & histopathology. Treatment consists of extended curettage with help of phenol, cottary & cavity is filled with bilateral autologous iliac crest bone graft and beta­tricalcium phosphate granules. Following 24 months of surgery patient is asymptomatic and there is no local recurrence was found clinicoradiologically.

Keywords: Giant cell tumor; Patella; Bone grafting; Anterior knee pain.