Accumulation of Tc-99m MDP by omental tumor in metastatic cecal cancer.

摘要

Soft tissue metastases from epithelial tumors often accumulate radiopharmaceutical at metbylene diphosphonate (MDP) scintigraphy. Although this is most commonly seen in the liver, peritoneal disease can sometimes be appreciated. Malignant ascites may demonstrate either a diffuse intraabdominal accumulation of radiopharmaceutical or U-shaped flank activity with relative central photopenia as a result of mesentery and bowel loops. We present a case of extensive omental tumor in a patient with metastatic cecal cancer incidentally discovered at bone scintigraphy. Soft tissue activity in both flanks and lower abdomen was initially attributed to uptake in ascites, but solid tumor was identified at subsequent CT scanning.