Extraosseous Colonic Uptake of 99mTc-MDP Associated With Iodinated Contrast CT

Clin Nucl Med. 2019 May;44(5):414-416. doi: 10.1097/RLU.0000000000002506.

Abstract

Extraosseous Tc-MDP uptake on bone scans is frequently encountered and has a broad differential diagnosis. A small subset of such patients can present with intestinal Tc-MDP uptake. We present the case of a 35-year-old woman with status after right nephrectomy for renal cell carcinoma, being followed with bone scan for osseous metastases. Follow-up imaging revealed new faint Tc-MDP uptake in the right hemiabdomen. Correlation with contrast-enhanced CT localized this uptake to the ascending colon. Enteric Tc-MDP uptake and its association with iodinated contrast should be considered in the differential diagnosis of extraosseous enteric Tc-MDP uptake.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Bone Neoplasms / diagnostic imaging*
  • Bone Neoplasms / secondary
  • Colon / diagnostic imaging*
  • Contrast Media
  • Diagnosis, Differential
  • Female
  • Humans
  • Kidney Neoplasms / pathology*
  • Radiopharmaceuticals
  • Technetium Tc 99m Medronate
  • Tomography, X-Ray Computed*

Substances

  • Contrast Media
  • Radiopharmaceuticals
  • Technetium Tc 99m Medronate