Radiographic, CT, MRI, and bone scintigraphy findings of patellar oligometastasis from rectal cancer.
Patellar oligometastasis.
DOI:
https://doi.org/10.61528/bjdi.v1i1.7Keywords:
Rectal Neoplasms, Magnetic Resonance Imaging, Neoplasm Metastasis, PatellaAbstract
Solitary metastasis or oligometastasis to the patella from colorectal cancer is rare, and multimodal imaging findings, including MRI, have not been well discussed. We report the case of a 74-year-old man with patellar oligometastasis from rectal cancer that was initially missed on whole-body positron emission tomography (PET) and misdiagnosed on bone scan. Radiographs and CT scans showed an osteolytic patellar tumor that was hypointense with ill-defined borders on T1-weighted imaging and hyperintense with well-defined borders on diffusion-weighted imaging. We discussed the characteristic MRI findings of patellar metastases and the pitfalls of PET and bone scan.
References
References
Zhao J, Zhao Y, Ma X, Feng H, Gao X. Comprehensive imaging and pathology of solitary patellar metastasis from breast cancer with literature review on its diagnosis and prognosis. Am J Transl Res. 2022 Feb 15;14(2):1123-1130. PMID: 35273716; PMCID: PMC8902579.
Zhao Y, Zhang Q, Feng H, Zhu X. Oesophageal carcinoma with solitary patellar metastasis: a rare case report. J Int Med Res. 2021 Apr;49(4):3000605211009812. doi: 10.1177/03000605211009812. PMID: 33906528; PMCID: PMC8108086.
Pazzaglia UE, Barbieri D, Cherubino P. Solitary metastasis of the patella as the first manifestation of lung cancer. A case report. Int Orthop. 1989;13(1):75-6. doi: 10.1007/BF00266728. PMID: 2722320.
Wu B, Xiu Y, Jiang L, Shi H. SPECT/CT imaging of patella metastasis from a squamous carcinoma of the lung. Clin Nucl Med. 2013 Feb;38(2):125-7. doi: 10.1097/RLU.0b013e318279b6a9. PMID: 23334128.
George MK, Venkitaraman R, Chandra A, Sagar TG. Late solitary skeletal metastasis to the patella from retinoblastoma. J Indian Med Assoc. 2008 May;106(5):313-4. PMID: 18839639.
Cavaciocchi A, Fusi M, Rigutti E. A solitary metastasis of the patella. Ital J Orthop Traumatol. 1992;18(4):557-60. PMID: 1345653.
Pazzaglia UE, Barbieri D, Cherubino P. Solitary metastasis of the patella as the first manifestation of lung cancer. A case report. Int Orthop. 1989;13(1):75-6. doi: 10.1007/BF00266728. PMID: 2722320.
Tudor A, Sestan B, Jonjic N, Miletic D, Hadzisejdic I, Prpic T, Rakovac I. Solitary metastasis of the patella in the differential diagnosis of anterior knee pain. West Indian Med J. 2010 Jan;59(1):110-2. PMID: 20931928.
Lazaro LE, Cross MB, Lorich DG. Vascular anatomy of the patella: implications for total knee arthroplasty surgical approaches. Knee. 2014 Jun;21(3):655-60. doi: 10.1016/j.knee.2014.03.005. Epub 2014 Apr 2. PMID: 24767718.
Ozdemir S, McCook B, Klassen C. Whole-Body versus Routine Skull Base to Mid-thigh 18F-Fluorodeoxyglucose Positron Emission Tomography/ Computed Tomography in Patients with Malignant Melanoma. J Clin Imaging Sci. 2020 Aug 1;10:47. doi: 10.25259/JCIS_93_2020. PMID: 32874752; PMCID: PMC7451172.
Downloads
Published
How to Cite
License
Copyright (c) 2023 Brazilian Journal of Diagnostic Imaging
This work is licensed under a Creative Commons Attribution 4.0 International License.
