Tumors and tumor like lesions of the patella - Pictorial essay

Subbarao Kakarla

Pdf Page Numbers :- 103-116

Subbarao Kakarla^1,*

¹KIMS Foundation and Research Centre, Minister Road, Secunderabad - 500003, Telangana, India

*Corresponding author: Prof. Kakarla Subbarao, MS, D.Sc. (HON), FRCR, FACR, FICP, FSASMA, FCCP, FICR, FCGP, Chairman, KIMS Foundation and Research Centre, Minister Road, Secunderabad - 500003, Telangana, India. Email: subbaraokakarla25@gmail.com

Received 12 July 2018; Revised 24 August 2018; Accepted 5 September 2018; Published 11 September 2018

Citation: Kakarla S. Tumors and tumor like lesions of the patella - Pictorial essay. J Med Sci Res. 2018; 6(4):103-116. DOI: http://dx.doi.org/10.17727/JMSR.2018/6-18

Copyright: © 2018 Kakarla S et al. Published by KIMS Foundation and Research Center. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Abstract

Focal lesions of patella are not infrequent. The patella is an uncommon location for neoplasms. The majority of tumors of the patella are benign, with a significant incidence of chondroblastoma and giant cell tumor. Other lesions include aneurysmal bone cysts, osteoid osteoma and osteoblastoma. In our experience chondroblastoma is the most common benign tumor. Malignant tumors include osteosarcoma, lymphosarcoma and metastasis. Radiological features are similar to the lesions at other sites except periosteal reaction is uncommon. However, tumor like lesions often pose a difficult problem in ruling out a real neoplasm which is important in order to avoid a biopsy. These include developmental, traumatic, infective, metabolic and endocrinal entities. Miscellaneous lesions include Paget disease and degenerative joint disease. Radiologically, it is important to identify the tumor like lesions and to differentiate them from primary neoplasms. Advanced imaging is rarely necessary, but histological confirmation is mandatory.

Keywords: Benign; malignant tumors; patella; tumor like lesions; gout; brown tumor; Paget’s