PMC5371210_01
Immunohistochemical staining demonstrating a monomorphic population of CD20 positive lymphocytes with coexpression of CD5 typical of CLL.
CRIONM2017-8247353.001.jpg
PMC5371210_01_CRIONM2017-8247353.001.jpg
fig1
Direct laryngoscopy was thus performed, and repeat biopsy of the mass now showed a monomorphic population of CD20+, CD5+, CD23+, and cyclin D1 negative lymphocytes consistent with patient's previous diagnosis of CLL (Figure 1).