Corresponding author at: Morioka-cho Ohbu-shi, 3-324-205, Aichi, Japan.; Department of General Pediatrics, Aichi Children’s Health and Medical Center, Aichi, Japan
Ogawa Eiki
Department of General Pediatrics, Aichi Children’s Health and Medical Center, Aichi, Japan
Hamashima Hiroshi
Department of General Pediatrics, Aichi Children’s Health and Medical Center, Aichi, Japan
Ito Kenta
Department of General Pediatrics, Aichi Children’s Health and Medical Center, Aichi, Japan
The smudge cells are well studied as a prognostic factor for chronic lymphocytic leukemia, but it is also found in viral infections. We experienced a case of abnormal hyperleukocytosis (WBC 41,600/mm3) associated with infectious mononucleosis (IM). The smudge cells were observed in peripheral blood smears, and were counted by mistake for the normal lymphocytes by the automatic blood count meter.
