Aneurysmal bone cyst secondary to a giant cell tumor of the patella: A case report

The patella is an unusual location for primary and metastatic bone tumors to develop. The most frequently encountered primary osteolytic lesions at the patella include giant cell tumors of the bone (GCT), chondroblastoma and aneurysmal bone cysts (ABC). However, the presentation of an ABC originatin...

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Bibliographic Details
Published in:Oncology letters 2016-02, Vol.11 (2), p.1481-1485
Main Authors: YU, XIAOLONG, GUO, RUNSHENG, FAN, CONGLIANG, LIU, HUCHENG, ZHANG, BIN, NIE, TAO, TU, YI, DAI, MIN
Format: Article
Language:English
Subjects:
aneurysmal bone cyst
Ballooning
Bone cancer
Bones
Care and treatment
Case reports
Complications and side effects
Cysts
Diagnosis
differential diagnosis
giant cell tumor of the bone
imaging
Knee
Medical diagnosis
Medical imaging
NMR
Nuclear magnetic resonance
Oncology
Pain
Patella
pathology
surgery
Tumors
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Summary:The patella is an unusual location for primary and metastatic bone tumors to develop. The most frequently encountered primary osteolytic lesions at the patella include giant cell tumors of the bone (GCT), chondroblastoma and aneurysmal bone cysts (ABC). However, the presentation of an ABC originating secondary to a GCT at the patella is rare. The present study describes such a case in a 46-year-old female. The differential diagnosis of the condition was extensive. The patient underwent curettage and the addition of bone cement to fill the defect. Pathological analysis of the resected tissue demonstrated that the lesion was consistent with an ABC forming secondary to a GCT. A 3-month follow-up was completed subsequent to the surgery, with a computed tomography scan demonstrating no evidence of recurrence. However, frequent and continuous observations of the patient following diagnosis are planned in order to evaluate the long-term efficacy of the surgical treatment. To the best of our knowledge, the present study describes the third reported case in the literature of this rare, double synchronous, benign tumor located at the patella.
ISSN:1792-1074
1792-1082
DOI:10.3892/ol.2016.4080