title: Patellar whiskers and acute calcific quadriceps tendinitis in a general hospital population.
abstract: Described is a case of acute calcific quadriceps tendinitis which presented as monoarticular arthritis. A survey of general hospital patients revealed a 7% incidence of calcification of the superior patellar tendon. The most common concurrent abnormality was degenerative joint disease (94%); concomitant chondrocalcinosis was not seen. The "patellar whisker" is a relatively common x-ray finding that may be the clue to an uncommon cause of acute arthritis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001168:Arthritis / Q000000981:diagnostic imaging; D002114:Calcinosis / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D002805:Chondrocalcinosis / Q000000981:diagnostic imaging; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007719:Knee Joint / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010329:Patella / Q000000981:diagnostic imaging*; D011859:Radiography; D052256:Tendinopathy / Q000000981:diagnostic imaging*; D013710:Tendons / Q000000981:diagnostic imaging