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  • Title: Splenic "regeneration" after partial splenectomy for Gaucher disease: histological features.
    Author: Freud E, Cohen IJ, Mor C, Golinsky D, Blumenfeld A, Zer M.
    Journal: Blood Cells Mol Dis; 1998 Sep; 24(3):309-16. PubMed ID: 10087989.
    Abstract:
    Partial splenectomy for Gaucher disease is often followed by reenlargement of the splenic remnant. It remains unclear if this process is due to tissue regeneration or to continued deposition of glucocerebroside in the reticuloendothelial system or both. We compared the splenic architecture before and after reenlargement in three cases of failed repeated partial splenectomy after two, six and five years. Using the number of lymphoid follicles per hundred low power fields (LF/LPF) as an arbitrary index, we found that prior to the first operation 18, 20 and 27 lymphoid follicles were present per one hundred low power fields, while at the second operation, the corresponding rates were 11, 15 and 17; in control spleens, an average of 712.5 lymphoid follicles were present in one hundred low power fields. The difference in the LF/LPF ratio before and after reenlargement, led us to speculate that splenic re-enlargement in Gaucher disease is mainly the result of the continued deposition of the glucocerebroside in the reticuloendothelial system of the splenic remnant, though some degree of true regeneration as well cannot be completely ruled out. These findings are compared with animal studies and results for partial splenectomy on humans, performed for trauma. Further studies in patients with Gaucher disease are warranted to better define the underlying mechanism of splenic reenlargement.
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