Indian Journal of Nuclear Medicine
  • Year: 2006
  • Volume: 21
  • Issue: 4

Unknown primary tumors: Detection of primary with PET-CT-our initial experience.

  • Author:
  • Kavitha Nallapareddy, Jyotsna Rao, Surya Prakash, C. Alka, Atul G. Sikander, VJ Vipin
  • Total Page Count: 1
  • Page Number: 94 to 94

Apollo Gleneagles PET-CT center, Hyderabad, AP, India

Abstract

To evaluate the role of PET-CT in detecting the primary in patients presenting with metastases from unknown primary.

40 patients (29 males & 11 females) referred for PET-CT with metastatic lymphadenopathy (18)or extra nodal metastases (22-liver, brain, skeleta etc) were analysed retrospectively. Whole body FDG PET-(CE)CT was performed in all patients on Biograph 16 PET-CT scanner.

PET-CT detected primary site in 16 patients (40%). in 24 (60%) tumor site remained occult.

PET alone revealed primary site accurately in 12 (30%) patients where as PET-CT could identify the primary site more precisely in 4 more.

PET-CT as a comprehensive modality was able to detect primary site in the patients presenting with metastases from primary unknown. Thus guiding the clinician for appropriate management.

Keywords

Unknown primary, PET-CT, metastatic