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Small renal masses (less than 4\u2005cm) are considered low risk for metastasising and are, thus, often observed or ablated, rather than resected. Furthermore, gastrointestinal metastases from RCC are rare. This case adds new perspective to the unpredictable nature of RCC and how synchronous malignancies may be masked in patients with long-standing CLL.<\/jats:p>","DOI":"10.1136\/bcr-2014-206101","type":"journal-article","created":{"date-parts":[[2015,1,7]],"date-time":"2015-01-07T13:49:13Z","timestamp":1420638553000},"page":"bcr2014206101","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":3,"title":["Metastatic renal cell carcinoma mimicking diverticulitis in a patient with chronic lymphocytic leukaemia"],"prefix":"10.1136","volume":"2015","author":[{"given":"S M","family":"Hwang","sequence":"first","affiliation":[{"name":"Mayo Medical School, Rochester, Minnesota, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J M","family":"Kuyava","sequence":"additional","affiliation":[{"name":"Section of Palliative Medicine, Mayo Clinic, Rochester, Minnesota, 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