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A ruptured Baker's cyst in a child may signal early juvenile rheumatoid arthritis. This rare presentation of calf swelling and knee pain warrants medical attention for potential rheumatological conditions.
Area of Science:
- Pediatric Rheumatology
- Orthopedic Surgery
- Emergency Medicine
Background:
- Juvenile rheumatoid arthritis (JRA) is a chronic inflammatory condition affecting children.
- Baker's cysts (popliteal cysts) are fluid-filled sacs behind the knee.
- Ruptured Baker's cysts can mimic other conditions, causing diagnostic challenges.
Observation:
- A 12-year-old boy presented with acute calf swelling and knee pain.
- He had a six-month history of intermittent knee pain and swelling.
- Physical examination suggested findings consistent with JRA and a ruptured Baker's cyst.
Findings:
- This case represents the sixth reported instance of a ruptured Baker's cyst in a child under 14.
- The clinical presentation of calf swelling and pain was attributed to the ruptured cyst.
- The underlying cause was suspected to be juvenile rheumatoid arthritis.
Implications:
- Emergency physicians should consider JRA in pediatric patients presenting with calf pain and swelling due to a ruptured Baker's cyst.
- Ruptured Baker's cysts can be an early, atypical sign of juvenile rheumatoid arthritis.
- Prompt diagnosis and management of JRA are crucial to prevent long-term joint damage.
Abstract:
A 12-year-old boy with recurrent complaints of knee pain and swelling for six months, but without diagnosed rheumatological disease, presented with calf swelling and knee pain of several days duration. Examination revealed findings consistent with juvenile rheumatoid arthritis and a ruptured Baker's cyst. This is the sixth reported case of ruptured Baker's cyst reported in a child less than 14 years old and should alert emergency physicians that calf pain and swelling secondary to a ruptured popliteal (Baker's) cyst may be an early manifestation of juvenile rheumatoid arthritis.