PMC6011155_01
Erythema and swelling anterior and superior to the left tibial tuberosity. Venous ulcer is also noticed on the anterolateral aspect of the distal left lower leg.
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fig1
On hospital day five, the patient was noted to have a new erythematous area over the anterior left knee, inferior to the patella (Figure 1).
Ultrasound imaging of the left infrapatellar bursa in both cross-sectional (short axis) (a) and longitudinal (long axis) (b) views. *Infrapatellar bursa is enlarged. The patellar tendon (PT) looks normal.
CRIOR2018-9086201.002.jpg
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fig2
Ultrasound revealed a small fluid collection superficial to the patellar tendon in the infrapatellar region measuring 3.3 x 2.5 x 0.4 cm (Figure 2).