Results: Patients with >10 CD8 ؉ T lymphocytes/highpower field within the tumor epithelium at the invasive border displayed improved overall survival compared with patients with fewer intraepithelial CD8 ؉ T lymphocytes (87 and 50%, respectively; P ‫؍‬ 0.027). Multivariate analysis revealed that stage, vascular invasion, grade, and the number of intraepithelial CD8؉ T lymphocytes at the invasive border were the only independent predictors of survival (P < 0.0001, P ‫؍‬ 0.001, P ‫؍‬ 0.011, and P ‫؍‬ 0.025, respectively). Granzyme B ؉ cytoplasmatic granules were detected in a high proportion of CTLs, confirming their activated cytotoxic phenotype.Conclusions: Our study demonstrates for the first time that increased numbers of CTLs at the invasive border may be a reliable independent prognostic factor of survival in patients with endometrial carcinoma.

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TNFAIP2 is a protein upregulated in response to TNF signaling but its cellular expression and function in normal and neoplastic tissues remains largely unknown. Here we use standard immunohistochemical techniques to demonstrate that TNFAIP2 is normally expressed by follicular dendritic cells, interdigitating dendritic cells, and macrophages but not by lymphoid cells in secondary lymphoid tissues. Consistent with this expression pattern, we found strong TNFAIP2 staining of tumor cells in 4/4 cases (100%) of follicular dendritic cell sarcoma and in 3/3 cases (100%) of histiocytic sarcoma. Although TNFAIP2 is not expressed by the small and intermediate-size neoplastic B-cells comprising follicular lymphoma, small lymphocytic lymphoma, mantle cell lymphoma, or marginal zone lymphoma, we observed strong TNFAIP2 staining of the large, neoplastic cells, in 31/31 cases (100%) of classical Hodgkin lymphoma, 12/12 cases (100%) of nodular lymphocyte predominant Hodgkin lymphoma, and 27/31 cases (87%) of primary mediastinal (thymic) large B cell lymphoma. In contrast, TNFAIP2 was expressed by the malignant cells in only 2/45 cases (4%) of diffuse large B cell lymphoma, not otherwise specified, 2/18 cases (11%) of Burkitt lymphoma, and 1/19 cases (5%) of anaplastic large cell lymphoma. Further analysis indicates that TNFAIP2, as a single diagnostic marker, is more sensitive (sensitivity= 87%) and specific (specificity= 96%) than TRAF1, nuclear cRel, or CD23 for distinguishing the malignant B-cells of primary mediastinal (thymic) large B cell lymphoma from those of its morphologic and immunophenotypic mimic, diffuse large B cell lymphoma, not otherwise specified. Thus, TNFAIP2 may serve as a useful new marker of dendritic and histiocytic sarcomas whose aberrant expression in the malignant cells of classical Hodgkin lymphoma and primary mediastinal (thymic) large B cell lymphoma serves to distinguish these tumors from other large cell lymphomas in routine clinical practice.

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Melkersson-Rosenthal Syndrome (MRS) is a rare disorder characterized by orofacial edema, facial palsy, and fissured tongue. A 64-year-old man presented with a fissured tongue and persistent chronic right upper eyelid edema of 15 years duration. The diagnostic biopsy revealed non-necrotizing granulomatous inflammation adjacent to blood and lymphatic vessels. Characteristic granulomas with focal occlusion of dilated lymphatic channels were present. Special stains for fungi, acid-fast microorganisms and bacteria were negative. Ptosis due to a mechanical effect of the persistent eyelid edema required surgical treatment including debulking and advancement of the levator muscle. At 6 months after surgery the patient showed symmetrical eyelid position without edema. The case demonstrates an uncommon presentation of Melkersson-Rosenthal syndrome with prominent upper eyelid edema and lingua plicata, which was initially misdiagnosed. The clinical findings coupled with the characteristic granulomatous lymphangitis present in the biopsy are crucial for a definite diagnosis.