title: Pseudogout presents as a popliteal cyst.
mesh_terms: D000368:Aged; D002062:Bursitis / Q000175:diagnosis; D002805:Chondrocalcinosis / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007719:Knee Joint; D008297:Male; D013577:Syndrome; D013581:Synovial Cyst / Q000175:diagnosis*