Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension

Introduction: Renal oncocytoma accounts for 5–7% of primary renal neoplasms. It is usually diagnosed in asymptomatic patients and is characterized by a benign behavior without invasion of adjacent tissues or metastasis. Diagnosis during pregnancy is uncommon and to date there have been only a few ca...

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Main Authors: Rita Torres, Augusta Borges, Ana Campos
Format: Article
Language:English
Published: Elsevier 2012-05-01
Series:Revista Portuguesa de Cardiologia (English Edition)
Online Access:http://www.sciencedirect.com/science/article/pii/S2174204912000402
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spelling doaj-4ddf1f84ff5e4af1bb99c14969ab60c92020-11-25T02:19:45ZengElsevierRevista Portuguesa de Cardiologia (English Edition)2174-20492012-05-01315385388Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertensionRita Torres0Augusta Borges1Ana Campos2Internato Médico em Ginecologia-Obstetrícia, Maternidade Dr. Alfredo da Costa, Lisboa, Portugal; Corresponding author.Departamento de Medicina Interna, Maternidade Dr. Alfredo da Costa, Lisboa, PortugalServiço de Medicina Materno-Fetal, Maternidade Dr. Alfredo da Costa, Lisboa, Portugal; Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisboa, PortugalIntroduction: Renal oncocytoma accounts for 5–7% of primary renal neoplasms. It is usually diagnosed in asymptomatic patients and is characterized by a benign behavior without invasion of adjacent tissues or metastasis. Diagnosis during pregnancy is uncommon and to date there have been only a few cases reported in the literature. Case report: The authors present the case of a 32-year-old nulliparous woman with uncontrolled hypertension diagnosed at seven weeks gestation. She was referred to our institution at 24 weeks with superimposed pre-eclampsia complicated by acute pulmonary edema and hemodynamic instability requiring mechanical ventilatory support, fetal growth restriction and stillbirth. Etiological study of the hypertensive disorder performed in the postpartum period was consistent with renal oncocytoma. Conclusion: The clinical behavior of renal oncocytoma remains poorly characterized during pregnancy and may lead to an adverse maternal and fetal outcome despite its theoretically benign behavior. It is essential to exclude a possible secondary cause of hypertension in cases that are difficult to control. Resumo: Introdução: O oncocitoma renal representa 5–7% das neoplasias primárias do rim, é diagnosticado em doentes assintomáticos e caracteriza-se por um comportamento benigno, sem invasão dos tecidos adjacentes ou metastização. O seu diagnóstico no decurso da gravidez é raro, havendo poucos casos descritos na literatura. Caso clínico: Os autores apresentam o caso de uma nulípara de 32 anos com hipertensão arterial de difícil controlo diagnosticada às sete semanas gestacionais com internamento às 24 semanas por quadro de hipertensão crónica agravada com pré-eclâmpsia sobreposta, edema agudo do pulmão e instabilidade hemodinâmica com necessidade de suporte ventilatório mecânico, restrição do crescimento fetal e morte fetal. O estudo etiológico do quadro hipertensivo efectuado no período pós-parto permitiu demonstrar a existencia de um tumor renal-oncocitoma. Conclusão: O comportamento clínico do oncocitoma renal permanece mal caracterizado durante a gravidez, podendo associar-se, apesar do seu comportamento teoricamente benigno, a um desfecho materno e fetal adverso. É fundamental excluir uma possível causa secundária nos quadros hipertensivos de difícil controlo. Keywords: Renal oncocytoma, Pregnancy, Hypertensive disorder, Palavras-chave: Oncocitoma renal, Gravidez, Patologia hipertensivahttp://www.sciencedirect.com/science/article/pii/S2174204912000402
collection DOAJ
language English
format Article
sources DOAJ
author Rita Torres
Augusta Borges
Ana Campos
spellingShingle Rita Torres
Augusta Borges
Ana Campos
Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension
Revista Portuguesa de Cardiologia (English Edition)
author_facet Rita Torres
Augusta Borges
Ana Campos
author_sort Rita Torres
title Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension
title_short Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension
title_full Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension
title_fullStr Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension
title_full_unstemmed Renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension
title_sort renal oncocytoma in pregnancy – an unusual presentation of secondary hypertension
publisher Elsevier
series Revista Portuguesa de Cardiologia (English Edition)
issn 2174-2049
publishDate 2012-05-01
description Introduction: Renal oncocytoma accounts for 5–7% of primary renal neoplasms. It is usually diagnosed in asymptomatic patients and is characterized by a benign behavior without invasion of adjacent tissues or metastasis. Diagnosis during pregnancy is uncommon and to date there have been only a few cases reported in the literature. Case report: The authors present the case of a 32-year-old nulliparous woman with uncontrolled hypertension diagnosed at seven weeks gestation. She was referred to our institution at 24 weeks with superimposed pre-eclampsia complicated by acute pulmonary edema and hemodynamic instability requiring mechanical ventilatory support, fetal growth restriction and stillbirth. Etiological study of the hypertensive disorder performed in the postpartum period was consistent with renal oncocytoma. Conclusion: The clinical behavior of renal oncocytoma remains poorly characterized during pregnancy and may lead to an adverse maternal and fetal outcome despite its theoretically benign behavior. It is essential to exclude a possible secondary cause of hypertension in cases that are difficult to control. Resumo: Introdução: O oncocitoma renal representa 5–7% das neoplasias primárias do rim, é diagnosticado em doentes assintomáticos e caracteriza-se por um comportamento benigno, sem invasão dos tecidos adjacentes ou metastização. O seu diagnóstico no decurso da gravidez é raro, havendo poucos casos descritos na literatura. Caso clínico: Os autores apresentam o caso de uma nulípara de 32 anos com hipertensão arterial de difícil controlo diagnosticada às sete semanas gestacionais com internamento às 24 semanas por quadro de hipertensão crónica agravada com pré-eclâmpsia sobreposta, edema agudo do pulmão e instabilidade hemodinâmica com necessidade de suporte ventilatório mecânico, restrição do crescimento fetal e morte fetal. O estudo etiológico do quadro hipertensivo efectuado no período pós-parto permitiu demonstrar a existencia de um tumor renal-oncocitoma. Conclusão: O comportamento clínico do oncocitoma renal permanece mal caracterizado durante a gravidez, podendo associar-se, apesar do seu comportamento teoricamente benigno, a um desfecho materno e fetal adverso. É fundamental excluir uma possível causa secundária nos quadros hipertensivos de difícil controlo. Keywords: Renal oncocytoma, Pregnancy, Hypertensive disorder, Palavras-chave: Oncocitoma renal, Gravidez, Patologia hipertensiva
url http://www.sciencedirect.com/science/article/pii/S2174204912000402
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