Punch biopsy results showed a dense, diffuse neutrophilic infiltrate of the reticular dermis and pronounced papillary edema. The clinical picture and biopsy results were consistent with acute ...
FIGURE 1. Platelet clumping (blue) was seen on peripheral blood smear. A misdiagnosis would have led to unnecessary tests and treatment. Ms. J, age 55 years, was referred to hematology for evaluation ...