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Hepatic angiomyolipoma

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)
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
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
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
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
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
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
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
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
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
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
Rui Li, Chun-Lin Tang, Ping Cai, Kuan-sheng Ma, Xiao-Hang Zhang, Shi-Yi Ding, Yi Zhang, De-Yu Guo, Xiao-Chu Yan
OBJECTIVE: To compare imaging findings of CT and contrast-enhanced US (CEUS) in hepatic angiomyolipoma (HAML) and investigate their pathological correlations. METHODS: Imaging findings and preoperative diagnosis of CT and CEUS were retrospectively compared head to head in 46 patients with 54 histologically proven HAMLs. Correlations between imaging features and preoperative diagnosis with pathological types of HAMLs were analyzed. RESULTS: Fat was detected in 100% of lipomatous type, 84...
February 2016: Abdominal Radiology
Santiago Ortiz, Francisco Tortosa
Hepatic angiomyolipoma is a rare neoplasm that can be difficult to diagnose in cases of ecoguide biopsy. We studied 4 cases of female patients with a mean age of 51 years. None of the patients presented specific abdominal symptoms, or other tumour masses detected by chance. One of them had relevant personal history: Renal cell carcinoma. This same patient was diagnosed with a contralateral renal angiomyolipoma. None of the patients showed evidence of tuberous sclerosis. Three tumours have been diagnosed by biopsy and only in one patient was decided to completely remove the tumour surgically...
January 2016: Revista Española de Enfermedades Digestivas
Jun Sun, Shouan Wang, Wenxin Chen, Jingtao Wu
The present study reports a case of histologically proven hepatic epithelioid angiomyolipoma that was evaluated with gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging and diffusion-weighted imaging. A 23-year-old female was admitted to the Northern Jiangsu People's Hospital (Yangzhou, Jiangsu, China) due to a 5.6-cm mass in the liver, and a right partial hepatectomy was performed. Magnetic resonance imaging (MRI) revealed a hypointense mass on T1-weighted imaging, and a hyperintense mass on T2-weighted and diffusion-weighted imaging, with a higher apparent diffusion coefficient value compared with normal liver parenchyma...
August 2015: Oncology Letters
Gongting Zhou, Weijian Hu, Haili Bao, Qiyu Zhang
Xantogranulomatous pyelonephritis (XGP) is a rare and chronic variant of pyelonephritis typically associated with obstruction and infection. Xantogranulomatous pyelonephritis can infiltrate liver and connect with hepatic dysfunction. Here we report on a 52-year-old female with a liver mass and a left renal mass detected by uitrasonography and magnetic resonance imaging. Right lobectomy and partial nephrectomy were successively performed. Subsequent pathologic examination indicated hepatic angiomyolipoma and xanthogranulomatous pyelonepheritis, respectively...
2015: International Journal of Clinical and Experimental Pathology
Santiago Ortiz, Francisco Tortosa
Hepatic angiomyolipoma is a rare neoplasm that can be difficult to diagnose in cases of ecoguide biopsy. We studied 4 cases of female patients with a mean age of 51 years. None of the patients presented specific abdominal symptoms, or other tumour masses detected by chance. One of them had relevant personal history: Renal cell carcinoma. This same patient was diagnosed with a contralateral renal angiomyolipoma. None of the patients showed evidence of tuberous sclerosis. Three tumours have been diagnosed by biopsy and only in one patient was decided to completely remove the tumour surgically...
November 23, 2015: Revista Española de Enfermedades Digestivas
Kewal A Mistry, Dinesh Sood, Rohit Bhoil, Veenal Chadha, Ajay K Ahluwalia, Saurabh Sood, Pokhraj P Suthar
BACKGROUND: Tuberous Sclerosis (TSC) also known as Bourneville disease is a neurocutaneous syndrome having an autosomal dominant inheritance pattern, though the condition has a high rate of spontaneous mutation. It is the second most common neurocutaneous syndrome after neurofibromatosis. This disease demonstrates a widespread potential for hamartomatous growths in multiple organ systems. CASE REPORT: We report a case of a 36-year-old female with TSC presenting as massive hematuria with underlying giant bilateral renal angiomyolipomas (AML) with estimated total tumor burden of more than 8 kg which is to the best of our knowledge the highest ever reported...
2015: Polish Journal of Radiology
Satoshi Komiyama, Hiroshi Okazaki, Satoshi Nakao, Shuhei Nishigori, Masahiro Terada, Jun Hamanaka, Yuki Miura, Hiroyuki Oka, Fumio Suzaki, Katsuaki Tanaka
Fatty changes are frequently observed in small, well-differentiated hepatocellular carcinomas (HCCs), but are rarely observed in large (over 30 mm in diameter) lesions. Here, we report a 76-year-old man who developed a large (58 mm in diameter), well-differentiated HCC with diffuse extensive fatty changes in the right lobe of the liver. He had no history of alcohol abuse, obesity, or hepatitis B or C infection, and no autoantibodies, but he did have type 2 diabetes. The serum alpha-fetoprotein level was within the normal range, and ultrasonography showed a round hyperechoic lesion...
October 2015: Clinical Journal of Gastroenterology
Kunitaka Kuramoto, Toru Beppu, Tomohiro Namimoto, Hiromitsu Hayashi, Katsunori Imai, Hidetoshi Nitta, Daisuke Hashimoto, Akira Chikamoto, Takatoshi Ishiko, Ken-Ichi Iyama, Osamu Ikeda, Yasuyuki Yamashita, Hideo Baba
BACKGROUND: Angiomyolipoma is a unique mesenchymal neoplasm composed of blood vessels as well as smooth muscle and adipose cells. The liver is a less common site of origin, and hepatic angiomyolipoma is often an incidental finding on diagnostic imaging or is identified on evaluation of nonspecific symptoms. CASE PRESENTATION: We experienced four patients who were diagnosed histologically with hepatic angiomyolipoma. The preoperative diagnoses were angiomyolipoma in two patients, hepatocellular carcinoma in one, and cavernous hemangioma in one...
2015: Surgical Case Reports
Keita Kai, Atsushi Miyosh, Shinichi Aishima, Kota Wakiyama, Shunya Nakashita, Shinji Iwane, Shinya Azama, Hiroyuki Irie, Hirokazu Noshiro
A 77-year-old Japanese woman was transported to a nearby hospital due to sudden abdominal pain and transient loss of consciousness. Abdominal computed tomography (CT) suggested hemoperitoneum and hepatic nodule. She was conservatively treated. Contrast-enhanced CT two months later revealed an increased mass size, and the enhancement pattern suggested the possibility of hepatocellular carcinoma (HCC). Under a clinical diagnosis of HCC, transcatheter arterial chemoembolization (TACE) was performed. A subsequent imaging study revealed that most of the lipiodol used for the embolization was washed out...
August 28, 2015: World Journal of Gastroenterology: WJG
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