Tc99m-MDP uptake in ascitic fluid in a patient with prostate carcinoma: A clue to detect metastases
A 70-year-old man of carcinoma prostate with rising prostate specific antigen (PSA) was subjected to bone scan for the assessment of possible metastatic bone disease. Contrast-enhanced computed tomography (CECT) demonstrated enlarged prostate with periprostatic infiltration. Tc-99m methylene diphosphonate (MDP) bone scan showed abnormal radiotracer uptake in the abdomen and left hemithorax, not corresponding to the skeleton [Figures and ]. Single-photon emission computed tomography (SPECT)/CT images of abdomen [] and thorax [] localized increased tracer uptake to the pleural and ascitic fluid, respectively.