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Photo Quiz

Unilateral Knee Swelling

Aaron Caminos, MD
Ryan Oliverio, DO
Bradley Neddenriep, MD

American Family Physician. 2025;112(3):315-316.

Author disclosure: No relevant financial relationships.

AARON CAMINOS, MD; RYAN OLIVERIO, DO, and BRADLEY NEDDENRIEP, MD, HCA Healthcare Riverside Family Medicine Residency Program, Riverside, California

Address correspondence to Aaron Caminos, MD, at acamin001md@gmail.com.

Author disclosure: No relevant financial relationships.

  1. 1.Khodaee M. Common superficial bursitis. Am Fam Physician. 2017;95(4):224-231.
  2. 2.Le Manac'h AP, Ha C, Descatha A, et al. Prevalence of knee bursitis in the workforce. Occup Med (Lond). 2012;62(8):658-660.
  3. 3.Weaver JS, Omar IM, Mar WA, et al. Magnetic resonance imaging of musculoskeletal infections. Pol J Radiol. 2022;87:e141-e162.
  4. 4.Baumbach SF, Lobo CM, Badyine I, et al. Prepatellar and olecranon bursitis: literature review and development of a treatment algorithm. Arch Orthop Trauma Surg. 2014;134(3):359-370.
  5. 5.Madden T, Pate M, Rossi D, et al. Massive bilateral infrapatellar bursitis: a rare manifestation. Clin Case Rep J. 2023;4(3):1-7.
  6. 6.Clebak KT, Morrison A, Croad JR. Gout: rapid evidence review. Am Fam Physician. 2020;102(9):533-538.
  7. 7.Achar S, Yamanaka J. Apophysitis and osteochondrosis: common causes of pain in growing bones. Am Fam Physician. 2019;99(10):610-618.
  8. 8.Smith JM, Varacallo MA. Osgood-Schlatter disease. StatPearls Updated August 4, 2023. Accessed May 11, 2025. https://www.ncbi.nlm.nih.gov/books/NBK441995/
  9. 9.Earwood JS, Walker TR, Sue GJC. Septic arthritis: diagnosis and treatment. Am Fam Physician. 2021;104(6):589-597.

The editors of AFP welcome submissions for Photo Quiz. Guidelines for preparing and submitting a Photo Quiz manuscript can be found in the Authors' Guide at https://www.aafp.org/afp/photoquizinfo. To be considered for publication, submissions must meet these guidelines. Email submissions to afpphoto@aafp.org.

This series is coordinated by John E. Delzell Jr., MD, MSPH, associate medical editor.

A collection of Photo Quiz published in AFP is available at https://www.aafp.org/afp/photoquiz.

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