{Reference Type}: Review
{Title}: Extranodal MALT Lymphoma in the Oral Cavity: A Series of Three Cases with Review of Literature.
{Author}: Kaur R;Shetty D;Bagal BP;Gujral S;Sengar M;Laskar S;Nayak L;Shet T;
{Journal}: Head Neck Pathol
{Volume}: 16
{Issue}: 4
{Year}: Dec 2022
暂无{DOI}: 10.1007/s12105-022-01461-6
{Abstract}: <B>BACKGROUND: </B>Diagnosis of MALT lymphoma in the oral cavity is challenging. There is a great overlap in the histopathologic, immuno-histochemical and molecular features of MALT lymphoma with reactive lymphoid proliferations. The literature shows a very few case reports of primary MALT lymphoma of oral cavity.<BR><B>METHODS: </B>We discuss the histopathologic, immuno-histochemical, cytogenetic features, treatment and behavior of 3 cases of primary MALT lymphoma oral cavity along with review of literature.<BR><B>RESULTS: </B>The age ranged from 40 to 57 years (male to female ratio = 2:1). The sites involved were hard palate, bilateral gingivobuccal sulcus and right buccal mucosa. The most common histology was centrocyte-like (2 cases). Lymphoepithelial lesions were absent. On immunohistochemistry, all tumors showed diffuse strong CD20 and bcl2 expression with strong and diffuse MNDA staining in one case. IgH; MALT1 translocation was not seen in any of these cases. One patient received local radiotherapy, one received steroids; while the case 3 received RCHOP (Rituximab, cyclophosphamide, hydroxydaunorubicin hydrochloride, vincristine and prednisone) chemotherapy. Two patients had complete remission while one had recurrence.<BR><B>CONCLUSIONS: </B>MALT lymphoma of oral cavity shows a wide spectrum of morphology with presence of transformed cells, that may lead to misdiagnosis of DLBL. Treatment guidelines are not well established but a tendency to excise MALT lymphomas of oral cavity has been observed. Nevertheless, MALT lymphoma of oral cavity appears to be an indolent disease.