@article{Giardini_Menna_Barbareschi_Molinari_2020, title={Unusual osteolitic intraosseous ganglion cyst of the medial tibial condyle in a patient affected by mild osteoarthritis of the knee}, volume={91}, url={https://mattioli1885journals.com/index.php/actabiomedica/article/view/11001}, DOI={10.23750/abm.v91i14-S.11001}, abstractNote={<p>Bone lesion of the proximal tibia are common findings; depending on the site, age of the patient and symptoms a carefull differential diagnosis must be carried out.</p> <p>We present the case of  a 60 years old active patient presenting at our clinic with atraumatic  knee pain.</p> <p>X-Rays performed revealed an osteolitic lesion of the medial tibial condyle; MRI  highlighted a lobulated cystic lesion of the medial tibial condyle without evidence of interruption of the suchondral bone. The cavity appeared with low signal intensity on T1 weighted images and with a high signal intensity on T2 images </p> <p>The tissue obtained from the incisional biopsy macroscopically revealed a clear, yellowish gelatinous and mucinous material; the microscopical hystological exam confirmed a cystic area of the lesion; the lumen contained some dense, fibrous matherial with focal mucoid degeneration, while the wall  was composed of a fibrous tissue with rare ossification and calcification. </p> <p>Clinical history, imaging and histhological findings lead to a certain diagnosis of an intraosseous ganglion cyst.</p> <p>We decided to surgically treat the lesion with courettage and bone grafting with allograft;the anterior part of the deep medial collateral ligament was used to avoid the leakage of the transplanted bone.</p> <p>With limitations concerning the short follow up, we obtained an optimal result in terms of patients satisfaction; this result is mainly related to the relief of the pain and the possibility for the patient to return to his activities.</p> <p>An accurate follow up must be carried out to verify the integration of the allograft </p> <p> </p> <p> </p> <p> </p>}, number={14-S}, journal={Acta Biomedica Atenei Parmensis}, author={Giardini, Piero and Menna, Carlo Raimondo and Barbareschi, Mattia and Molinari, Marco}, year={2020}, month={Dec.}, pages={e2020027} }