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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-12-17
pubmed:abstractText
Organ transplant recipients are at an increased risk of developing malignancies due to prolonged immunosuppression. However, the rate and clinical course of neuroendocrine tumors (NETs) following organ transplantation has not been assessed so far. We have retrospectively analyzed patients undergoing organ transplantation between 1985 and 2001 in order to assess the frequency and clinical course of NETs in organ transplant recipients. 3,190 organ transplant recipients with sufficient clinical data were identified (2,521 kidney and 669 heart transplants). In total, 161/3,190 patients (5%) developed malignancies, with 6 of them being classified as NETs (0.18%). Interestingly, all 6 patients were diagnosed with undifferentiated neuroendocrine carcinomas, while no indolent NETs were seen. Four of these patients had undergone renal, 1 patient heart and 1 patient both heart and renal transplantation. All 6 patients were given chemotherapy, but none of them responded, as all patients showed disease progression after a median of 3 cycles of chemotherapy (range 1-4) with the median survival being 4.8 months (range 2-11). The occurrence of NETs/undifferentiated neuroendocrine carcinomas following organ transplantation appears to be rare, with an incidence comparable with the normal population. Our data suggest a highly aggressive course with a dismal prognosis and unresponsiveness to chemotherapy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
1423-0232
pubmed:author
pubmed:copyrightInfo
Copyright 2009 S. Karger AG, Basel.
pubmed:issnType
Electronic
pubmed:volume
77
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
314-7
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Neuroendocrine carcinomas arising in solid-organ transplant recipients: rare but aggressive malignancies.
pubmed:affiliation
Department of Internal Medicine I, Division of Oncology, Medical University Vienna, Vienna, Austria.
pubmed:publicationType
Journal Article