Журнал клинических случаев

Follicular Lymphoid Hyperplasia in Palate: A Case Report with Immunohistochemical Analysis and Review

Abstract

Manuel Antonio Gordón-Núñez, Onilson Da Rocha Méndes Jr, Leonardo Miguel Madeira Silva and Hébel Cavalcanti Galvão

Follicular lymphoid hyperplasia of the hard palate is a reactive lymphoid proliferation which closely simulates the palatal lymphomas, both clinically and histologically. It is therefore imperative that the pathologist be familiar with the features that separate these two conditions. It reported a case of FLH in a 70-year-old white woman, showing a nodular lesion in right posterior soft palate, reddish, soft, asymptomatic. Histopathological analysis revealed lymphoid aggregates with discrete lobular appearance in the lamina propria of connective tissue showing numerous lymphocytes in the periphery with scanty cytoplasm and homogeneously basophilic nuclei and central areas of germinal centers showing tingible-body macrophages and occasional mitotic figures. In order to distinguish Follicular Lymphoma (FL) from Follicular Hyperplasia (FH), immunohistochemical staining method for bcl-2 was used showing positivity in the mantle zone and absence of immunostaining in the cellular elements within the follicle centres.