Juxta-articular Myxoma of the Knee

ABSTRACT

Juxta-articular myxoma is a benign lesion usually presenting as a slow-growing, well-circumscribed mass. Occasionally, however, the lesion grows rapidly and is poorly circumscribed, and it is this clinical presentation that arouses suspicion of malignancy. Furthermore, on histology a myxoma can also be confused with a variety of sarcomas. We present a case of juxta-articular myxoma and discuss the possible diagnostic dilemmas involved.

KEYWORDS

Knee - juxta-articular myxoma - tumor

REFERENCES

• 1 Nederlandse Werkgroep Weke Delen Tumoren. Richtlijn Diagnostiek bij weke delen tumoren en behandeling van weke delen sarcomen (herziening). Utrecht, the Netherlands; Van Zuiden Communications by Alphen aan de Ryn. Nederlandse Werkgroep Weke Delen Tumoren; 2003
• 2 Daluiski A, Seeger L L, Doberneck S A, Finerman G A, Eckardt J J. A case of juxta-articular myxoma of the knee.  Skeletal Radiol. 1995;  24 389-391
• 3 King D G, Saifuddin A, Preston H V, Hardy G J, Reeves B F. Magnetic resonance imaging of juxta-articular myxoma.  Skeletal Radiol. 1995;  24 145-147
• 4 Kosty J W, Moore J G. Juxta-articular myxoma within the suprapatellar pouch masquerading as a ganglion cyst.  Orthopedics. 2009;  32 527
• 5 Meis J M, Enzinger F M. Juxta-articular myxoma: A clinical and pathologic study of 65 cases.  Hum Pathol. 1992;  23 639-646
• 6 Minkoff J, Stecker S, Irizarry J, Whiteman M, Woodhouse S. Juxta-articular myxoma: A rare cause of painful restricted motion of the knee.  Arthroscopy. 2003;  19 E6-E13
• 7 Allen P W. Myxoma is not a single entity: A review of the concept of myxoma.  Ann Diagn Pathol. 2000;  4 99-123
• 8 Stout A P. Myxoma, the tumor of primitive mesenchyme.  Ann Surg. 1948;  127 706-719