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Hepatic angiomyolipoma

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https://www.readbyqxmd.com/read/28301898/epithelioid-angiomyolipoma-of-the-liver-a-case-report
#1
Soo Yeon Lee, Baek-Hui Kim
Epithelioid angiomyolipoma (EAML) of liver is a rare neoplasm. Hepatic EAML is often misdiagnosed as other neoplasms such as hepatocellular carcinoma due to non-specific clinical and radiologic features. The morphologic features under microscope and immunohistochemistry staining profile are important in the diagnosis EAML. Here, we report a case of 52-year-old man who found 1.2 cm mass in liver by routine checkup. On the impression of hepatocellular carcinoma, lateral sectionectomy of the liver was done. Microscopically, the tumor is composed of predominant epithelioid cells with vascular component and foamy cells...
March 17, 2017: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28246920/primary-perivascular-epithelioid-cell-tumors-of-the-liver-ct-mri-findings-and-clinical-outcomes
#2
Martin E O'Malley, Tanya P Chawla, Lisa P Lavelle, Sean Cleary, Sandra Fischer
OBJECTIVES: The purpose of our study was to describe the CT and MRI features of primary PEComas of the liver and to document the associated clinical outcomes. METHODS: Retrospective study included 20 patients with primary hepatic perivascular epithelioid cell tumors (PEComa) with pathology and clinical outcomes for correlation. RESULTS: Study group included 20 patients: 16 women, 4 men; mean age 53 (range 35-77) years. Initial pathology diagnoses were classic angiomyolipoma (AML) (n = 11), epithelioid AML (n = 7), and PEComa not otherwise specified (n = 2)...
February 28, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28202028/management-of-everolimus-associated-adverse-events-in-patients-with-tuberous-sclerosis-complex-a-practical-guide
#3
REVIEW
Mark Davies, Anurag Saxena, John C Kingswood
Tuberous sclerosis complex (TSC) is a genetic disorder characterised by highly variable comorbid dysfunction and subsequent morbidity. The mTOR inhibitor everolimus is indicated for the treatment of adult TSC patients with renal angiomyolipomas (AMLs) and for subependymal giant astrocytoma (SEGA) in both adults and children, based on data from the EXIST-1 and EXIST-2 trials. However, due to the historical predominance of everolimus in the oncology setting, some physicians who treat TSC patients may be unfamiliar with everolimus-associated adverse events (AEs) and appropriate management strategies...
February 15, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28177188/management-of-hepatic-angiomyolipoma-a-systematic-review
#4
Anne J Klompenhouwer, Danielle Verver, Shiromani Janki, Wichor M Bramer, Michail Doukas, Roy S Dwarkasing, Robert A de Man, Jan N M IJzermans
BACKGROUND & AIMS: Hepatic Angiomyolipoma (HAML) is a rare mesenchymal liver tumor assumed to be predominantly benign, although incidental cases with malignant behavior such as invasive growth, recurrence after resection and metastases have been reported. The aim of this systematic review was to assess the biological behavior, estimate the risk of HAML related mortality and recommend on a justifiable management strategy. METHODS: We performed a systematic literature search in Embase, Medline, Web-of-Science, Scopus, Pubmed Publisher, Cochrane and Google Scholar...
February 8, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28122404/clinico-pathological-correlation-of-hepatic-angiomyolipoma-a-series-of-23-resection-cases
#5
Dong Hwan Jung, Shin Hwang, Seung Mo Hong, Ki Hun Kim, Chul Soo Ahn, Deok Bog Moon, Abdulwahab A Alshahrani, Sung Gyu Lee
BACKGROUND: Angiomyolipomas are rare neoplasms of mesenchymal origin and are derived from perivascular epithelioid cells. They usually develop in the kidney and rarely in the liver. Due to their rarity, most hepatic angiomyolipomas have been misinterpreted as hepatocellular carcinoma (HCC) or other hypervascular liver tumours on imaging studies. We aimed to assess the clinico-pathological correlation of hepatic angiomyolipoma. METHODS: We identified 23 patients with hepatic angiomyolipoma through an institutional database search...
January 25, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28049244/false-positive-diagnosis-of-hepatocellular-carcinoma-in-liver-resection-patients
#6
Hongeun Lee, Jeong Hee Yoon, Hyeyoung Kim, Nam Joon Yi, Suk Kyun Hong, Kyung Chul Yoon, Hyo Sin Kim, Sung Woo Ahn, Jin Young Choi, Youngrok Choi, Hae Won Lee, Ju Yeon Yi, Kyoung Bun Lee, Kwang Woong Lee, Kyung Suk Suh
The diagnosis of hepatocellular carcinoma (HCC) is based on imaging studies particularly in high-risk patients without histologic confirmation. This study evaluated the prevalence and characteristics of false-positively diagnosed HCC in a liver resection cohort for HCC. A retrospective review was performed of 837 liver resection cases for clinically diagnosed HCC between 2005 and 2010 at our institute. High-risk patients with tumors > 1 cm with one or two image findings consistent with HCC and tumors < 1 cm with two or more image findings consistent with HCC with persistently increased serum alpha-fetoprotein (AFP) levels above the normal range with underlying inhibited hepatitis activity underwent liver resection...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28030864/cd68-positive-cells-in-hepatic-angiomyolipoma
#7
Hitoshi Tochio, Eriko Tamaki, Yukihiro Imai, Nobuhiro Iwasaki, Kazushi Minowa, Hobyung Chung, Yoshiki Suginoshita, Tetsurou Inokuma, Masatoshi Kudo
Four resected specimens of hepatic angiomyolipoma in which uptake of Sonazoid was observed in the postvascular phase of Sonazoid-enhanced ultrasonography were analyzed. Macrophage localization in the tumor was revealed pathologically by immunohistochemical staining for CD68. CD68-positive cells were observed in the tumor in all cases. The density of CD68-positive cells was 100/mm2, and the ratio of CD68-positive cell density in the tumor to that in the surrounding parenchyma was 32-171%. These results suggested that the uptake of the contrast agent Sonazoid was related to the density of CD68-positive cells...
2017: Oncology
https://www.readbyqxmd.com/read/27890423/hepatic-epithelioid-angiomyolipoma-clinical-features-and-imaging-findings-of-contrast-enhanced-ultrasound-and-ct
#8
Y Tan, X Xie, Y Lin, T Huang, G Huang
AIM: To evaluate the clinical features and imaging findings of epithelioid angiomyolipoma (EAML) on contrast-enhanced ultrasound (CEUS) and contrast-enhanced computed tomography (CECT). MATERIALS AND METHODS: During January 2006 to November 2015, six patients with histopathologically proven hepatic EAML were evaluated using both CECT and ultrasonography. Six patients underwent CEUS and four patients had CECT images. Patients' demographics, clinical presentations, laboratory test results, and imaging appearances were collected and analysed...
April 2017: Clinical Radiology
https://www.readbyqxmd.com/read/27865795/hepatic-angiomyolipomas-may-overexpress-tfe3-but-have-no-relevant-genetic-alterations
#9
Naoe Jimbo, Takashi Nishigami, Masayuki Noguchi, Hiroko Iijima, Seiichi Hirota, Takuma Tajiri, Takeshi Inoue, Takanori Hirose, Tomoo Itoh, Yoh Zen
The fusion or amplification of TFE3 has been identified as one of the molecular events underlying tumorigenesis in perivascular epithelioid cell tumors (PEComas). TFE3 rearrangements in PEComas are related to the morphological features of the epithelioid appearance and weaker expression of immunohistochemical muscular markers. This study aimed to clarify whether these genetic alterations are involved in hepatic angiomyolipomas (AMLs), which are a member of the PEComa tumor family. We examined 28 liver specimens (15 biopsies and 13 surgical specimens) of hepatic AMLs obtained from 26 patients...
November 16, 2016: Human Pathology
https://www.readbyqxmd.com/read/27684838/uncommon-liver-tumors-case-report-and-literature-review
#10
REVIEW
Chia-Hung Wu, Nai-Chi Chiu, Yi-Chen Yeh, Yu Kuo, Sz-Shian Yu, Ching-Yao Weng, Chien-An Liu, Yi-Hong Chou, Yi-You Chiou
BACKGROUND: Beside hepatocellular carcinoma, metastasis, and cholangiocarcinoma, the imaging findings of other relatively uncommon hepatic lesions are less discussed in the literature. Imaging diagnosis of these lesions is a daily challenge. In this article, we review the imaging characteristics of these neoplasms. METHODS: From January 2003 to December 2014, 4746 patients underwent liver biopsy or hepatic surgical resection in our hospital. We reviewed the pathological database retrospectively...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27525134/angiomyolipoma-in-a-patient-with-situs-inversus-totalis-managing-two-rare-diseases
#11
Jonathan Mayes, Nigel Heaton
Hepatic angiomyolipoma is an extremely rare benign hamartomatous lesion. Situs inversus totalis is a genetic condition occurring in 0.01% of the population. Following the kidney, the liver is the second most common site of angiomyolipoma. No consensus on the treatment of hepatic angiomyolipoma has been reached. However, the majority of these tumours are managed conservatively. Situs inversus totalis presents difficulties for procedures and is most commonly an incidental finding. These two conditions have not previously been reported and no genetic link has been established between them...
2016: Case Reports in Hepatology
https://www.readbyqxmd.com/read/27465340/tuberous-sclerosis-complex-imaging-characteristics-in-11-cases-and-review-of-the-literature
#12
Shan Hu, Dao-Yu Hu, Wen-Zhen Zhu, Liang Wang, Zi Wang
Tuberous sclerosis complex (TSC) is an uncommon multiorgan disorder that may present many and different manifestations on imaging. Radiology plays an important role in diagnosis and management, and can substantially improve the clinical outcome of TSC. Therefore, a comprehensive understanding of this disease is essential for the radiologist. The manifestations of TSC on computer tomography (CT) and magnetic resonance (MR) images were analyzed. Eleven patients with a clinical diagnosis of TSC were retrospectively reviewed...
August 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27313680/hepatic-epithelioid-angiomyolipoma-is-a-rare-and-potentially-severe-but-treatable-tumor-a-report-of-three-cases-and-review-of-the-literature
#13
Wentao Liu, Zihui Meng, Hongyu Liu, Wei Li, Qiong Wu, Xuewen Zhang, Changyong E
Hepatic epithelioid angiomyolipoma (EAML) is a rare type of hepatic tumor. Due to a lack of adequate understanding about this tumor, hepatic EAML is often misdiagnosed as other diseases with similar clinical characteristics such as hepatic cancer. In the present study, 3 cases of hepatic EAML are reported, and the main clinicopathological features of this disease are presented, based on a literature search that included articles published in English between February 2000 and September 2014. A total of 24 hepatic EAML cases were considered, of which, 17 were females and 4 presented multiple liver lesions...
June 2016: Oncology Letters
https://www.readbyqxmd.com/read/27248975/hepatic-angiomyolipoma-versus-hepatocellular-carcinoma-in-the-noncirrhotic-liver-on-gadoxetic-acid-enhanced-mri-a-diagnostic-challenge
#14
So Jung Lee, So Yeon Kim, Kyoung Won Kim, Jin Hee Kim, Hyoung Jung Kim, Moon-Gyu Lee, Eun Sil Yu
OBJECTIVE: The purpose of this study is to describe the imaging characteristics of hepatic angiomyolipoma (AML) on gadoxetic acid-enhanced MRI and to identify imaging features that are helpful for differentiating it from hepatocellular carcinoma (HCC) in a noncirrhotic liver. MATERIALS AND METHODS: We retrospectively identified 18 patients with pathologically proven hepatic AMLs who had undergone gadoxetic acid-enhanced MRI between 2008 and 2012. We randomly chose 36 patients with noncirrhotic liver who had a single HCC diagnosed radiologically during the same period...
September 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27239117/primary-hepatic-epithelioid-angiomyolipoma-a-malignant-potential-tumor-which-should-be-recognized
#15
Jie Liu, Cheng-Wu Zhang, De-Fei Hong, Ran Tao, Yuan Chen, Min-Jie Shang, Yu-Hua Zhang
AIM: To improve the clinical diagnosis and recognition of hepatic epithelioid angiomyolipoma (HEAML). METHODS: Four cases of primary HEAML were confirmed based on the pathology archive system in our hospital from January 2009 to November 2015. The general state, clinical symptoms, imaging manifestations, histological results and immunohistochemistry of these patients were retrospectively reviewed and analyzed. Studies of HEAML published in the last 15 years were collected from PubMed and MEDLINE to summarize the clinical symptoms, imaging characteristics, pathological features and management of HEAML...
May 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27171001/women-with-tsc-relationship-between-clinical-lung-function-and-radiological-features-in-a-genotyped-population-investigated-for-lymphangioleiomyomatosis
#16
Fabiano Di Marco, Silvia Terraneo, Gianluca Imeri, Giuseppina Palumbo, Francesca La Briola, Silvia Tresoldi, Angela Volpi, Lorenzo Gualandri, Filippo Ghelma, Rosa Maria Alfano, Emanuele Montanari, Alfredo Gorio, Elena Lesma, Angela Peron, Maria Paola Canevini, Stefano Centanni
The advent of pharmacological therapies for lymphangioleiomyomatosis (LAM) has made early diagnosis important in women with tuberous sclerosis complex (TSC), although the lifelong cumulative radiation exposure caused by chest computer tomography (CT) should not be underestimated. We retrospectively investigated, in a cohort of TSC outpatients of San Paolo Hospital (Milan, Italy) 1) the role of pulmonary function tests (PFTs) for LAM diagnosis, 2) the association between LAM and other features of TSC (e.g. demography, extrapulmonary manifestations, genetic mutations, etc...
2016: PloS One
https://www.readbyqxmd.com/read/27037804/malignant-hepatic-epithelioid-angiomyolipoma-with-recurrence-in-the-lung-7%C3%A2-years-after-hepatectomy-a-case-report-and-literature-review
#17
Yasunari Fukuda, Hideyasu Omiya, Koji Takami, Kiyoshi Mori, Yoshinori Kodama, Masayuki Mano, Yoriko Nomura, Jun Akiba, Hirohisa Yano, Osamu Nakashima, Mitsumasa Ogawara, Eiji Mita, Shoji Nakamori, Mitsugu Sekimoto
Angiomyolipoma (AML) arising in the liver is rare and usually benign, but it occasionally has malignant potential. A 58-year-old man with a liver tumor identified by a previous doctor with features suggestive of hepatocellular carcinoma on computed tomography (CT) underwent anterior segmentectomy of the liver in 2006. Microscopically, the tumor was composed of exclusively epithelioid cells that were scatteredly positive for human melanoma black 45 on immunohistochemistry. Accordingly, primary hepatic epithelioid AML (eAML) was diagnosed...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/26956960/-hepatic-angiomyolipoma-a-clinicopathologic-features-and-prognosis-analysis-of-182-cases
#18
Rongkui Luo, Jing Zhao, Yunshan Tan, Akesu Sujie, Haiying Zeng, Yuan Ji
OBJECTIVE: To study the clinicopathological characteristics of hepatic angiomyolipoma (HAML) and to evaluate the correlation between clinicopathological parameters and tumor subtypes. METHODS: Retrospective analysis of clinicopathological features was conducted in 182 cases of HAML. RESULTS: HAML patients were predominantly female (M:F=1:4) and most commonly presented with non-specific symptoms. The median age at diagnosis was 46 years, ranged from 17 to 77 years...
March 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/26943379/hepatic-angiomyolipoma-differential-diagnosis-from-other-liver-tumors-in-a-special-reference-to-vascular-imaging-importance-of-early-drainage-vein
#19
Masato Yoshioka, Go Watanabe, Hiroshi Uchinami, Kazuhiro Kudoh, Yuko Hiroshima, Toshiaki Yoshioka, Hiroshi Nanjo, Masato Funaoka, Yuzo Yamamoto
A 51-year-old female had been diagnosed with a hemangioma in the hepatic segment 6 (S6). After a 6-year follow-up, enlargement of the tumor was detected. The tumor was clearly enhanced in the arterial phase, and the enhancement remained in the portal phase on computed tomography (CT). Although the primary differential diagnosis on CT was hepatocellular carcinoma (HCC), we worried about the possibility of other vessel system tumors because the tumor remained to be enhanced at the portal phase for HCC and all tumor markers of HCC were negative...
December 2015: Surgical Case Reports
https://www.readbyqxmd.com/read/26927347/an-unusual-variant-of-hepatic-inflammatory-angiomyolipoma-report-of-a-rare-entity
#20
Hongxia Sun, Mary Yang
Hepatic angiomyolipoma is a rare mesenchymal tumor with a broad spectrum of histological appearance. A 44-year-old female presented with abdominal discomfort. MRI revealed a 3.6 cm well-defined hepatic lesion. Ultrasound-guided core biopsy with imprint smears was performed. The smears showed histiocytes with a few epithelioid cells, mimicking an inflammatory lesion. The biopsy showed proliferation of epithelioid cells with aggregates of foamy histiocytes and scattered adipocyts, resembling hepatocellular neoplasm...
2016: Annals of Clinical and Laboratory Science
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