Karyomegalic interstitial nephritis in a renal allograft.
Am J Transplant
; 19(1): 285-290, 2019 01.
Article
em En
| MEDLINE
| ID: mdl-30040181
ABSTRACT
Karyomegalic interstitial nephritis (KIN) is a rare renal interstitial disease entity characterized by large tubular nuclei, accompanied by interstitial inflammation, tubular atrophy, and interstitial fibrosis. Approximately 50 cases of KIN have been described in the native kidney. In this case study, we describe the first case of KIN in a kidney allograft. A 41-year-old man presented with declining kidney function and a serum creatinine of 2.7 mg/dL. The native kidney biopsy showed large pleomorphic nuclei in the proximal and distal tubular epithelial cells, which was associated with interstitial inflammation, and extensive interstitial fibrosis and tubular atrophy. Immunohistochemistry for cytomegalovirus, adenovirus, and simian virus 40 were negative. A diagnosis of KIN was rendered. The patient received a living-related kidney transplant from his sister. At 4-, 12-, and 24-months posttransplant, protocol allograft biopsies showed KIN with large pleomorphic nuclei in the proximal and distal tubules with mild interstitial inflammation, minimal tubular atrophy, and interstitial fibrosis. At 24.7 months of follow-up, the patient has stable renal function with a serum creatinine of 1.6 mg/dL. The KIN may represent recurrent KIN or donor-associated KIN. Recognition of this rare disease entity is important as it can be mistaken for a viral infection.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Transplante de Rim
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Rim
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Falência Renal Crônica
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Nefrite Intersticial
Tipo de estudo:
Guideline
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Prevalence_studies
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Risk_factors_studies
Limite:
Adult
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Humans
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Male
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article