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Click 23 year old female with lipoma arborescens of right knee joint. High resolution Ultrasonography (Philips HD11,12 MHz linear transducer L12-3) of suprapatellar region revealed frond like villous projections of the synovium (arrows) with associated joint effusion (star) with no demonstrable flow on colour doppler study.

Click 23 year old female with lipoma arborescens of right knee joint. Axial T2 weighted images (G.E HDe signa 1.5 Tesla MRI system TR-3960 TE-83.34 7 mm slice thickness with interslice gap of 2.5mm) showed intermediate to high signal intensity of the villous projections similar to subcutaneous fat (flower).

Click 23 year old female with lipoma arborescens of right knee joint. Coronal T2 weighted images (G.E HDe signa 1.5 Tesla MRI system TR-2540 TE-74.112 4 mm slice thickness with interslice gap of 0.5mm) showed intermediate to high signal intensity of the villous projections similar to subcutaneous fat (flower).

Click 23 year old female with lipoma arborescens of right knee joint. Sagittal T1 weighted image (G.E HDe signa 1.5 Tesla MRI system TR-520 TE-10.376 4mm slice thickness with interslice gap of 1.5mm) showed high signal intensity frond like synovial thickening in the suprapatellar bursal region (arrows) with joint effusion (flower).

Click 23 year old female with lipoma arborescens of right knee joint. Fat suppressed proton density axial images.(G.E HDe signa 1.5 Tesla MRI system.TR-2040 TE-35.52 7 mm slice thickness with interslice gap of 2.5mm revealed complete suppression of signal intensity of villous projections (arrow) in suprapatellar bursal region.

Click 23 year old female with lipoma arborescens of right knee joint. Fat suppressed proton density coronal images.(G.E HDe signa 1.5 Tesla MRI system.TR-2220 TE-37.056 4 mm slice thickness with interslice gap of 0.5mm) revealed complete suppression of signal intensity of villous projections (arrow) in suprapatellar bursal region.

Click 23 year old female with lipoma arborescens of right knee joint. Fat suppressed proton density sagittal images.(G.E HDe signa 1.5 Tesla MRI system.TR-2220 TE-37.056 4 mm slice thickness with interslice gap of 0.5mm) revealed complete suppression of signal intensity of villous projections (arrow) in suprapatellar bursal region.