|Case||Age & gender||Symptoms||Physical findings||MRI findings||Treatment and arthroscopy findings||Original diagnosis||Definitive histopathological findings||Final result & follow-up|
|1||28/Male||Swelling since 2 and a half years with dull aching pain||Knee effusion with boggy swelling. No joint line tenderness. No Instability,||MRI - Frond like synovial growth pattern characteristic of Lipoma Arborescens. Focal marrow edema in intercondylar notch and medial femoral condyle. Moderate synovial effusion||Synovial hypertrophy with branching frond-like pattern noted. Synovectomy done.||Lipoma Arborescens||Fibrocollagenous tissue with dense mixed inflammatory infiltrate comprised of lymphocytes, plasma cells, neutrophils and proliferative blood vessels.||
Patient is being treated for Chronic Inflammatory Synovitis.|
Patient continues to have improvement in symptoms while being on anti-inflammatory medications.
|2||22/Male||Dull aching pain and swelling.||Effusion and boggy swelling.||Frond like branching synovial proliferation. Knee effusion.||Frond-like branching synovial growth. Synovectomy done.||Lipoma Arborescens||Inflammatory infiltrate in synovium, with absence of adipose tissue proliferation in subsynovial layer.||
Patient is being treated for Chronic inflammatory synovitis.|
Patient is on rheumatologic medications and has improvement of symptoms.
|3||37/Male||Pain, Swelling, occasional locking of knee.||Minimal effusion. No tenderness. No instability.||Minimal joint effusion, with a rounded hypointese body in suprapatellar bursa (17 x 16 x 7 mm) suggestive of a focus of nodular synovitis.||White, glistening loose body appearing like a cartilaginous tissue. Loose body removal done.||Unclear Diagnosis. Differentials included Nodular Synovitis or Cartilage injury.||Hyalinised fibrous nodular mass, with underlying stroma showing an organized hematoma||Patient has no complaints at present after removal of the loose body.|