Clinical implications of a rare renal entity: Pleomorphic Hyalinizing Angiectatic Tumor (PHAT)

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• 作者：Cristina Scalici Gesolfo^a ; ^{cristinasc1986@gmail.com} ; Vincenzo Serretta^a ; ^{vserretta@libero.it} ; Fabrizio Di Maida^a ; ^{fabridima90@gmail.com} ; Giulio Giannone^b ; ^{giulio.giannone@unipa.it} ; Elisabetta Barresi^b ; ^{elisabetta.barresi@unipa.it} ; Vito Franco^b ; ^{vito.franco@unipa.it} ; Rodolfo Montironi^c ; ^{R.Montironi@univpm.it}
• 关键词：Pleomorphic Hyalinizing Angiectatic Tumor (PHAT) ; Renal tumor ; Partial nephrectomy
• 刊名：Pathology - Research and Practice
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：213
• 期：2
• 页码：165-169
• 全文大小：4048 K
• 卷排序：213

文摘

Pleomorphic Hyalinizing Angiectatic Tumor (PHAT) is a rare benign lesion characterized by slow growth, infiltrative behavior and high rate of local recurrences. Only one case has been described in retroperitoneum, at renal hilum, but not involving pelvis or parenchyma.Here we present the first case of PHAT arising in the renal parenchyma.A nodular lesion in right kidney lower pole was diagnosed to a 61 year old woman. The patient underwent right nephrectomy. Microscopically, the lesion showed solid and pseudo-cystic components with hemorrhagic areas characterized by aggregates of ectatic blood vessels. Pleomorphic cells were characterized by large eosinophilic cytoplasm with irregular and hyperchromatic nuclei. Immunohistochemistry was performed and the lesion was classified as a Pleomorphic Hyalinizing Angiectatic Tumor (PHAT).Due to the clinical behavior of this tumor, in spite of its benign nature, review of the surgical margins and close follow up after partial nephrectomy are mandatory.