title: An Unusual Association: Iliopsoas Bursitis Related to Calcium Pyrophosphate Crystal Arthritis.
abstract: A 71-year-old man with osteoarthritis and chondrocalcinosis came to our observation developing a swelling in the groin region after a recent left colectomy for adenocarcinoma. The imaging techniques revealed the presence of an iliopsoas bursitis in connection with the hip. The synovial fluid analysis detected the presence of calcium pyrophosphate (CPP) crystals and allowed the final and unusual diagnosis of iliopsoas bursitis related to acute CPP crystal hip arthritis.
authors.affiliation: Rheumatology Department, Polytechnic University of the Marche, Jesi, 60035 Ancona, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Di Carlo
authors.affiliation: Rheumatology Department, Polytechnic University of the Marche, Jesi, 60035 Ancona, Italy.
authors.forename: Antonella
authors.initials: A
authors.lastname: Draghessi
authors.affiliation: Radiology Department, Polytechnic University of the Marche, 60035 Ancona, Italy.
authors.forename: Marina
authors.initials: M
authors.lastname: Carotti
authors.affiliation: Rheumatology Department, Polytechnic University of the Marche, Jesi, 60035 Ancona, Italy.
authors.forename: Fausto
authors.initials: F
authors.lastname: Salaffi