Neutrophilic urticaria: whole-body ¹¹¹In-leukocyte scan and histological correlation

Excerpt

An 88-year-old male who had recently undergone abdominal aortic aneurysm repair was admitted for assessment of a possible aorto-enteric fistula. In addition, he had recently been diagnosed with a parotid abscess and had started to take oral antibiotics. CT scan did not detect an aorto-enteric fistula but did reveal a small amount of fluid in the pelvis and inflammatory changes around the aortic graft. There was clinical concern regarding graft infection, and a ¹¹¹In-labeled white cell scan was requested (a,b). This revealed diffuse abnormal radiotracer uptake within the subcutaneous tissue (arrows), predominantly of the arms, pelvis, and legs. There was no abnormal increased activity in the region of the aorta to suggest graft infection. …