Hairy Cell Leukemia-Japanese Variant: Report of a Patient and Literature Review.
Int J Surg Pathol
; 30(7): 828-838, 2022 Oct.
Article
in En
| MEDLINE
| ID: mdl-35234079
ABSTRACT
Hairy cell leukemia-Japanese variant (HCL-jv) shares some features with, but differs in other features from, HCL variant. Recently, it has been pointed out that HCL-jv and splenic diffuse red pulp small B-cell lymphoma (SDRPL) possibly constitute the same disease. We report a patient with HCL-jv, in which the neoplastic cells in the resected spleen were positive for CD11c, CD103, tartrate-resistant acid phosphatase (by immunohistochemistry), and weakly positive for cyclin D3. They were negative for CD25, CD123, annexin A1, and BRAF V600E-derived protein. Meta-analysis of HCL-jv cases in the literature showed considerable variation in the expression of HCL-related molecules. Although the clinical features and pattern of splenic involvement of HCL-jv are similar to those of SDRPL, some cytomorphological and phenotypical differences can be pointed out. To confirm whether the weak expression of cyclin D3 in our case suggests a spectrum from HCL-jv to SDRPL or one of the characteristics of HCL-jv, further studies on a large number of cases are necessary.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Leukemia, Hairy Cell
/
Lymphoma, B-Cell
Type of study:
Diagnostic_studies
/
Systematic_reviews
Limits:
Humans
Country/Region as subject:
Asia
Language:
En
Journal:
Int J Surg Pathol
Journal subject:
PATOLOGIA
Year:
2022
Document type:
Article
Affiliation country: