Which condition would NOT show uptake of 111-In labeled leukocytes?

The condition that would not show uptake of 111-In labeled leukocytes is pulmonary embolism. This is because the radiolabeled leukocyte scan primarily detects areas of inflammation and infection by identifying the accumulation of white blood cells. In pulmonary embolism, the primary issue is a blockage in the pulmonary arteries, typically due to a blood clot. While the associated lung tissue affected by the embolism may become hypoxic or undergo other changes, there is generally no significant inflammatory response or leukocyte mobilization to the site of embolism itself.

In contrast, osteomyelitis and dental abscess are both inflammatory conditions characterized by an active immune response. In these cases, 111-In labeled leukocytes would accumulate at the site of infection due to the presence of activated white blood cells, indicating inflammatory activity.

Similarly, an ostomy site might also show uptake as it can be associated with inflammation, infection, or other processes that provoke a white blood cell response. The key distinction lies in the absence of a significant inflammatory response typically associated with pulmonary embolism, leading to the lack of uptake of the radiolabeled leukocytes in that condition.