Lorenzo Franco de la Torre, Mercedes Gonzalez-Hita, Juan Luis Alcala-Zermeno, Ana Teresa Montes-Leyva, Martin Vargas-Magana, Abraham Zepeda-Moreno, Jose Rafael Villafan-Bernal and Sergio Sánchez-Enríquez
Introduction: Giant Synovial osteochondromatosis of Hoffa’s body is very uncommon. Although described as a benign disease, it can be destructive and can cause severe osteoarthritis and pain.
Case report: We report an 18 year old female patient presented with a calcified mass inside the Hoffa’s body. Clinically, patient presented with eight-month history of progressively worsening left knee pain with associated swelling. The bony mass in the Hoffa’s body was evident on the X-ray. MRI showed synovial affectation. During the arthroscopy, all pathological synovial was removed and the bony mass was extirpated through a mini-arthrotomy. Diagnosis of a giant synovial osteochondromatosis was confirmed by histology and malignancy was ruled out. Five years after surgery the patient has been asymptomatic and motion range is complete.
Conclusion: This case of primary synovial chondromatosis is interesting because it was presented in an age, gender and unusual location. At 5 years of postoperative follow-up the patient has had no recurrence and has showed excellent performance of the knee joint.
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