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Updated: Apr 12, 2026

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions
Published on: March 3, 2023
"A 40-year-old female with painless, slow growing prepatellar mass"
Sumit Arora1, Sahil Batra2, Seema Rao3
1Department of Orthopaedic Surgery, The Maulana Azad Medical College & Associated Lok Nayak Hospital, New Delhi 110002, India.
Abstract:
A 40-year-old woman from India presented with a mass in the front of her left knee which had been present for 8 months. Local examination revealed a globular mass of approximate size 5 cm × 4 cm × 4 cm in front of the lower pole of left patella. The patient was investigated with imaging studies and laboratory tests. Plain radiograph of the chest was normal. In addition, contrast enhanced Magnetic Resonance Imaging (MRI) of the left knee was performed. Based on the history, physical examination, laboratory and imaging studies, what is the differential diagnosis?
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