A Research Study to Bank Samples for Future Evaluation to Identify Biomarkers That Predispose Crohn's Disease and Ulcerative Colitis Patients to Develop Hepatosplenic T-Cell Lymphoma (HSTCL)

This study is designed to collect tissue samples from the biopsy specimen that was used to
diagnose hepatosplenic T-cell lymphoma (HSTCL), additional patient information, and if
possible, to obtain additional samples including a single blood sample, a buccal swab sample
and/or a bowel tissue sample. Samples obtained will be stored by the sponsor for future
testing. In addition, demographic and clinical patient information will be collected. The
study will be conducted in North America. Patients eligible for enrollment include males or
females with IBD of any age who have a confirmed diagnosis of HSTCL. Patients will be
identified through the sponsor's adverse event reporting systems. Cases reported to the
sponsor's Medical Information Center will be queried to ascertain if the reporter is
interested in participating in the study. Where appropriate, cases may also be identified
through the sponsor's new or on-going clinical trials and registries. Samples may be
collected from living patients or from stored tissue of deceased patients. This study will
not restrict or introduce any therapeutic interventions, including medications. All patients
will continue to be managed by their personal physicians. No healthy subjects will be
enrolled in this study.