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|Title:||Histological and immunohistochemical features of gingival enlargement in a patient with AML|
|Citation:||Odontology, 2012; 100(2):254-257|
|Publisher:||Springer Japan KK|
|Norihiro Sonoi, Yoshihiko Soga, Hiroshi Maeda, Koichi Ichimura, Tadashi Yoshino, Kazutoshi Aoyama, Nobuharu Fujii, Yoshinobu Maeda, Mitsune Tanimoto, Richard Logan, Judith Raber-Durlacher, Shogo Takashiba|
|Abstract:||Here, we discuss the pathophysiology of leukemia-associated gingival enlargement based on a case of acute myelomonocytic leukemia (AML-M4) with typical gingival enlargement. Uniquely, this patient was well enough to allow full periodontal examination and incisional gingival biopsy to be performed both before and after chemotherapy. The patient was a 39-year-old Japanese woman with AML-M4 showing gingival enlargement. Histological and immunohistochemical features of gingiva and bacterial counts in the periodontal pockets were examined before and after chemotherapy. The results were as follows: (1) infiltration of myelomonocytic blasts in enlarged gingiva; (2) resolution of gingival enlargement with complete remission of AML by anticancer chemotherapy; and (3) the numbers of bacteria in the periodontal pockets were not high and were not altered before or after chemotherapy. In patients with AML-M4, remarkable mucosal enlargement is not generally observed in the body except in the gingiva. We hypothesized that antigens derived from periodontal bacteria, even if they are not present in large numbers, could act as chemoattractants for myelomonocytic leukemic cells.|
|Keywords:||Gingival enlargement; Acute myelomonocytic leukemia; Pathogenesis; Histology; Immunohistochemistry|
|Rights:||© The Society of The Nippon Dental University 2011|
|Appears in Collections:||Dentistry publications|
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