A 64-year-old man, who came to us with diarrhea, presented with ectodermal changes such as hyperpigmentation, alopecia, and onychatrophy, and was affected by polyposis in the colorectum and stomach. The polyps were histologically consistent with those in Cronkhite-Canada syndrome (CCS). Interestingly, the patient also had colon cancer, as well as portal thrombosis and a high concentration of antinuclear antibody. Treatment with prednisolone ameliorated the symptoms and the gastrointestinal polyposis, while the cancer was successfully treated with a hemicolectomy. Six months after the surgery, the patient developed nephropathy, with nephrotic-range proteinuria, without recurrence of the cancer. The biopsied renal specimen showed membranous glomerulonephritis. This is a rare case of CCS associated with various complications such as colon cancer, portal vein thrombosis, a high titer of antinuclear antibodies, and membranous glomerulonephritis. Although the pathogenesis of CCS is essentially unknown, these complications might have been indicative of an underlying immunological abnormality.
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Takeuchi, Y., Yoshikawa, M., Tsukamoto, N. et al. Cronkhite-Canada syndrome with colon cancer, portal thrombosis, high titer of antinuclear antibodies, and membranous glomerulonephritis. J Gastroenterol 38, 791–795 (2003). https://doi.org/10.1007/s00535-002-1148-6
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DOI: https://doi.org/10.1007/s00535-002-1148-6