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Pseudolymphoma of the pancreas
mimicking cancer.Pancreas.
1994 Sep;9(5):668-70.
Localized lymphoid
hyperplasia (pseudolymphoma) of the pancreas presenting with
obstructive jaundice.
Hum Pathol. 1991 Jul;22(7):724-6.
A case of
hyperplastic lymphoid lesion of the pancreatic head manifested by
obstructive jaundice is presented. A 57-year-old woman who complained
of malaise and icterus underwent pancreatoduodenectomy under the
clinical diagnosis of pancreatic carcinoma. The lesion was diagnosed
as localized lymphoid hyperplasia (pseudolymphoma) based on the
presence of hyperplastic follicles with germinal center and mixed
infiltration of plasma cells and mature lymphocytes with no
significant cytologic atypia. The immunostaining revealed polyclonal
origin of the lymphoplasmocytic component. Localized lymphoid
hyperplasia occurs in a wide variety of sites; however, to our
knowledge, its occurrence in the pancreas has not been documented
previously.
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