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Characteristics of CD5-Positive Splenic Marginal Zone Lymphoma with Leukemic Manifestation; Clinical, Flow Cytometry, and Histopathological Findings of 11 Cases
被引:13
|作者:
Kojima, Minoru
Sato, Eriko
[3
]
Oshimi, Kazuo
[3
]
Murase, Takuhei
[4
]
Koike, Tadashi
[5
]
Tsunoda, Sinichirou
[6
]
Matsumoto, Toshiharu
[7
]
Marutsuka, Kousuke
[8
]
Ogiya, Daisuke
[1
]
Moriuchi, Makiko
[1
]
Tokunaka, Mami
[2
]
Kikuti, Yukie Yara
[2
]
Kikuchi, Tomoki
[2
]
Nakamura, Naoya
[2
]
Ando, Kiyoshi
[1
]
机构:
[1] Tokai Univ, Sch Med, Dept Hematol & Oncol, Isehara, Kanagawa 2591193, Japan
[2] Tokai Univ, Sch Med, Dept Pathol, Isehara, Kanagawa, Japan
[3] Juntendo Univ, Sch Med, Dept Hematol, Tokyo, Japan
[4] Nishio Municipal Hosp, Dept Internal Med, Nishio, Japan
[5] Nagaoka Red Cross Hosp, Nagaoka, Niigata, Japan
[6] Sakae Kyousai Hosp, Yokohama, Kanagawa, Japan
[7] Juntendo Univ, Sch Med, Dept Pathol, Tokyo, Japan
[8] Miyazaki Univ, Miyazaki Med Coll Hosp, Pathol Div, Miyazaki, Japan
关键词:
splenic marginal zone lymphoma;
CD5;
CD13;
immunohistochemistry;
D O I:
10.3960/jslrt.50.107
中图分类号:
R5 [内科学];
学科分类号:
1002 ;
100201 ;
摘要:
Splenic marginal zone lymphoma (SP-MZL) is a rare low-grade B-cell neoplasm that often shows leukemic manifestation. Less than 20% of cases of SP-MZL express CD5. We analyzed 11 cases of CD5-positive SP-MZL with leukemic manifestation. The clinical characteristics of these cases did not differ from those of CD5-negative SP-MZL. Flow cytometry revealed positive results as follows : CD3, 0/9; CD5, 11/11; CD10, 0/11; CD11c, 4/10, CD13, 5/11; CD19, 11/11; CD20, 10/11; CD21, 4/4; CD22, 7/7; CD23, 5/10; CD25, 8/11; FMC7, 5/7; k type 6/9, and lambda type 2/9. All 3 cases with monoclonal gamma-globulinemia expressed CD13. Resected spleen exhibited a proliferation of neoplastic cells in white pulp in all 8 splenectomy patients and a marginal pattern was detected in 5 patients. Only 2 cases showed involvement of red pulp. Immunohistochemistry showed that the lymphoma cells were positive for CD5, CD20, and BCL-2 and negative for CD3, CD10, cyclin D1, BCL-6, and MUM-1 in all 11 cases. These results suggest that CD5-positive SP-MZL differs from B-cell chronic lymphocytic leukemia, that CD13 expression is found in about half of CD5-positive SP-MZL cases, and that CD5-positive SP-MZL may be related to memory B-cell neoplasm or plasma cell differentiation.
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页码:107 / 112
页数:6
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