The case is presented of a patient with mild rheumatoid arthritis who developed an enlarged painful tissue mass in the left lower leg. Although the history, clinical, and imaging appearances suggested that it was a soft tissue sarcoma, a biopsy specimen showed histological features consistent with either a rheumatoid nodule or subcutaneous granuloma annulare.

Introduction Novel interventions are needed for the treatment of women with metastatic ovarian cancer that causes 14,000 deaths each year in the USA. Retrospective analysis of tumor infiltrating lymphocytes (TIL) infused into patients who achieved complete, durable regressions of metastatic melanoma revealed that the responses were likely mediated through recognition of somatic non-synonymous m...

The tumor environment exerts a powerful suppressive influence on infiltrating tumor-reactive T cells. It induces tolerance of adoptively transferred effector T cells as they enter tumors and maintains the tolerance of persisting tumor-infiltrating T cells. In an autochthonous prostate cancer model, in which tumor-reactive CD8 T cells are trackable, we demonstrate that both depletion of endogeno...

Uncontrolled or non-resolving inflammation underpins a range of disease states including rheumatoid arthritis, inflammatory bowel disease and atherosclerosis. Hypoxia is a prominent feature of chronically inflamed tissues. This is due to elevated oxygen consumption by highly metabolically active inflamed resident cells and activated infiltrating immunocytes, as well as diminished oxygen supply ...

A collision tumor is one where histology shows the presence of two distinct primaries involving the same organ without intermixture of individual cell types, ie, a side by side pattern. Here we present three rare cases of collision tumors involving the stomach and transverse colon. There were two cases of collision tumors involving the stomach, one of which was a combination of adenocarcinoma a...

Uterine cervical adenocarcinoma is rare, but its prevalence has increased. To improve outcomes and ensure the suitability of recent immunotherapies, the aim of this study was to evaluate the clinicopathological impact of the tumor immune microenvironment of uterine cervical adenocarcinoma. We investigated 148 adenocarcinoma cases, including 21 cases of adenocarcinoma in situ (AIS) and 127 cases...

Tumor heterogeneity and the dynamic tumor immune microenvironment have become important topics in the field of cancer immunotherapy. The ability to noninvasively monitor immune cells in vivo via surface markers on immune cell subsets using immuno-positron emission tomography (immuno-PET) is an attractive means of visualizing both systemic and intratumoral alterations in immune cell numbers and ...

Despite the progress of tailored therapeutic strategies in patients with breast cancer, there is an unmet medical need for additional biomarkers that would guide therapy, including the administration of targeted agents. It has been demonstrated that the presence of tumor-infiltrating lymphocytes (TILs) is associated with prognosis in patients with early breast cancer. Moreover, TIL counts were ...

AIMS To understand the immunopathogenesis of the corneal conjunctivalisation in Stevens-Johnson syndrome. METHODS Conjunctivalised corneas from five patients with Stevens-Johnson syndrome were studied immunohistochemically for several cell surface antigens and two cytokines. Chemical injury specimens were also studied. RESULTS In all cases, immunohistochemistry revealed LFA-1, CD4, CD8, and...