Examples of PSMA-positive Disease Located inside the Radiation Fields (IMAGE)

Society of Nuclear Medicine and Molecular Imaging

Examples of PSMA-positive Disease Located inside the Radiation Fields

Caption

Examples of 68Ga-PSMA-11-positive disease outside radiation fields on CT (top), PET (middle), and PET/CT (bottom). Once positive lesions were identified on PET, contours of prostate CTV (yellow) and pelvic LN CTV (green) were drawn on the basis of CT. (A) Primary prostate tumor (MTV, 3 cm3; SUVmax, 12) without CT correlate, located more than 1 cm below CTV. (B) Right perirectal LN (short axis, 8 mm; SUVmax, 6.1). (C) Multiple abdominal LNs (short axis, 4-7 mm; SUVmax, 4.7-17.2). (D) Multiple left subclavicular LNs (short axis, 3-4 mm; SUVmax, 3.0-9.1). (E) Sacral bone metastasis without CT correlate (SUVmax, 8.4). (F) Left lung nodule (short axis, 7 mm; SUVmax, 1.5).

Credit

Minsong Cao, Jeremie Calais, Nicholas G. Nickols, UCLA, Los Angeles, CA.

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