Kosin Med J.  2018 Dec;33(3):391-395. 10.7180/kmj.2018.33.3.391.

Case Report of Prostate Cancer Patient with Only Lymph Node Involvement on F-18 FDG PET/CT

Affiliations
  • 1Department of Urology, School of Medicine, Catholic University of Daegu, Korea.
  • 2Department of Nuclear Medicine School of Medicine, Catholic University of Daegu, Korea. kufa77@hanmail.net

Abstract

We report a case of a patient with locally advanced prostate cancer who had only lymph node involvement without bone metastasis on F-18 FDG PET/CT. A 62-year-old Korean male was admitted to our hospital due to dysuria. His PSA level on admission was 79.35 ng/mL. A transrectal ultrasound-guided prostate biopsy confirmed prostate cancer and his Gleason score was 10 (5+5). F-18 FDG PET/CT demonstrated a hypermetabolic mass lesion with SUVmax 7.0 in the prostate and hypermetabolism with SUVmax 4.7 of the abdominal and pelvic lymph nodes. Tc-99m HDP bone scan showed no significant bone metastasis. The patient underwent hormonal therapy for 9 months. Follow-up F-18 FDG PET/CT showed significantly reduced size and FDG uptake in the prostate and abdominal and pelvic lymph nodes. In this case, treatment monitoring with F-18 FDG PET/CT showed decreased mass size and FDG uptake in the prostate and abdominal and pelvic lymph nodes.

Keyword

F-18 FDG PET/CT; Only lymph node involvement; Prostate cancer

MeSH Terms

Biopsy
Dysuria
Follow-Up Studies
Humans
Lymph Nodes*
Male
Middle Aged
Neoplasm Grading
Neoplasm Metastasis
Positron-Emission Tomography and Computed Tomography*
Prostate*
Prostatic Neoplasms*

Figure

  • Fig. 1 A 62-year-old male underwent Tc-99m HDP bone scintigraphy for searching bone metastasis. Tc-99m HDP bone scintigraphy showed multiple tracer uptake in the wrist, knee, ankle and hand joints, associated with arthritis, but no significant focal tracer uptake of bone metastasis.

  • Fig. 2 F-18 FDG PET/CT showed a mass lesion with FDG uptake with SUVmax 4.6 in the prostate (a) and lymph node enlargement with FDG uptake with SUVmax 3.4 in paraaortic (b) areas. Follow-up F-18 FDG PET/CT about 9 months after hormonal therapy showed a significantly reduced size and FDG uptake in the prost


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