27 June 2023
: Case report 
Inflammatory Arthritis After COVID-19: A Case Series
Challenging differential diagnosis, Educational Purpose (only if useful for a systematic review or synthesis), Rare coexistence of disease or pathology
Siddhant Yadav1ABCDEF*, Sara L. Bonnes1DEF, Elizabeth A. Gilman1DEF, Michael R. Mueller
1DE, Nerissa M. Collins1E, Ryan T. Hurt123ABCDEF, Ravindra Ganesh 1ABCDEF
DOI: 10.12659/AJCR.939870
Am J Case Rep 2023; 24:e939870
Table 1. Characteristics of our patient population.
| Age (Sex) | COVID diagnosis | Rheumatologic symptoms onset | Laboratory tests | Reference range | Imaging findings |
|---|---|---|---|---|---|
| 45 (Female) | 8/2021 | 9/2021 | Anti-CCP 23.3CRP 8.5RF 120IL-6 5.6 | (range <20)(range <8)(range <15)(range <1.8) | NM scan: bilateral knees, mid feet, 5 MTP left, right elbow, right wrist, left 5 PIP joint, 1 right IP joint |
| 46 (Female) | 11/2020 | 5/2021 | D-dimer 908IL-6 102 | (range <500)(range <1.8) | MRI: Left hand/wrist, radiocarpal, midcarpal, 1–5 CMC joint |
| 54 (Female) | 8/2021 | 12/2021 | ESR 41D-dimer 610CRP 28.6IL-6 6.5 | (range 2-22)(range <500)(range <8)(range <1.8) | NM scan: right hip, right knee, both shoulders and bilateral radiocarpal joint |
| 61 (Female) | 11/2020 | 12/2020 | IL-6 9.7D-dimer 3744 | (range <1.8)(range <500) | NM scan: 1 left MTP joint and bilateral ankles, knees, hips, shoulders, elbows, wrists |
| 19 (Female) | 2/2021 | 4/2021 | ANA 1: 640Scl-70 1.5 | (negative <1: 80)(range <1) | NM scan: left hindfoot/ankle, bilateral knees |
| NM scan = nuclear medicine joint scan (sodium pertechnetate Tc 99m injection (TECHNETIUM Tc-99m, 22 millicurie). ANA – antinuclear antibody; CMC – carpometacarpal; CRP – C-reactive protein; ESR – erythrocyte sedimentation rate; IL – interleukin; IP – interphalangeal; MRI – magnetic resonance imaging; MTP – metatarsophalangeal; PIP – proximal interphalangeal; NM – nuclear medicine; RF – rheumatoid factor. | |||||