2,732 results match your criteria Focal Nodular Hyperplasia


Prominent Pseudoacini in Focal Nodular Hyperplasia: A Potential Diagnostic Pitfall.

Am J Surg Pathol 2022 Jun 22. Epub 2022 Jun 22.

Department of Pathology, Yale School of Medicine, New Haven, CT.

Pseudoacini are generally a morphologic feature of hepatocellular carcinoma (HCC), being absent or rare in benign hepatocytic tumors, such as hepatocellular adenoma. However, rarely these can be seen in focal nodular hyperplasia (FNH) and may pose diagnostic challenges, especially when prominent. The study was aimed to evaluate the occurrence of pseudoacini in FNH and their clinicopathologic correlations. Read More

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Adrenal Tumors in Young Adults: Case Reports and Literature Review.

Medicina (Kaunas) 2022 May 30;58(6). Epub 2022 May 30.

Department of Endocrinology and Internal Medicine, Faculty of Medicine, Medical University of Gdansk, 80-214 Gdansk, Poland.

The current high detection rate of adrenal tumors (4-10% of general population) is attributable to a widespread use of variety of imaging studies, especially a computed tomography. Most of them represent clinically silent and biologically indolent incidentalomas, but some adrenal tumors may pose a significant clinical challenge. Thus, in every patient with an adrenal tumor, a decision on further management is made after careful hormonal and radiological evaluation. Read More

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The Role of ICG in Robot-Assisted Liver Resections.

J Clin Med 2022 Jun 19;11(12). Epub 2022 Jun 19.

Department of General, Abdominal, Thoracic, Transplantation and Pediatric Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany.

Introduction: Robotic-assisted liver surgery (RALS) with its known limitations is gaining more importance. The fluorescent dye, indocyanine green (ICG), is a way to overcome some of these limitations. It accumulates in or around hepatic masses. Read More

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Deep Learning for Approaching Hepatocellular Carcinoma Ultrasound Screening Dilemma: Identification of α-Fetoprotein-Negative Hepatocellular Carcinoma From Focal Liver Lesion Found in High-Risk Patients.

Front Oncol 2022 26;12:862297. Epub 2022 May 26.

Department of Ultrasound, Zhongshan Hospital of Fudan University, Shanghai, China.

Background: First-line surveillance on hepatitis B virus (HBV)-infected populations with B-mode ultrasound is relatively limited to identifying hepatocellular carcinoma (HCC) without elevated α-fetoprotein (AFP). To improve the present HCC surveillance strategy, the state of the art of artificial intelligence (AI), a deep learning (DL) approach, is proposed to assist in the diagnosis of a focal liver lesion (FLL) in HBV-infected liver background.

Methods: Our proposed deep learning model was based on B-mode ultrasound images of surgery that proved 209 HCC and 198 focal nodular hyperplasia (FNH) cases with 413 lesions. Read More

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Focal Nodular Hyperplasia and Focal Nodular Hyperplasia-like Lesions.

Radiographics 2022 Jun 10:210156. Epub 2022 Jun 10.

From the Department of Radiology (J.D.L., C.W.B., A.W.B., M.P.C., F.K.C., K.L.C., R.S., B.B.T., L.F.A.) and Department of Laboratory Medicine and Pathology (J.T.L.), Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224.

Focal nodular hyperplasia (FNH) is a benign lesion occurring in a background of normal liver. FNH is seen most commonly in young women and can often be accurately diagnosed at imaging, including CT, MRI, or contrast-enhanced US. In the normal liver, FNH frequently must be differentiated from hepatocellular adenoma, which although benign, is managed differently because of the risks of hemorrhage and malignant transformation. Read More

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Fat in mass in primary liver lesions: are usual MRI diagnostic criteria of both malignant and benign liver lesions still applicable?

Abdom Radiol (NY) 2022 Jul 7;47(7):2347-2355. Epub 2022 Jun 7.

Department of Radiology, APHP, HU Henri Mondor, Creteil, Val-de-Marne, France.

Purpose: To evaluate the accuracy of the usual MRI diagnostic patterns of primary liver lesions applied to the diagnosis of pathologically proven fat-containing liver lesions.

Materials And Methods: This monocentric IRB approved retrospective study included all patients with pathologically proven focal liver lesions and documented intra-tumoral fat on pathology and who underwent preoperative liver MRI for characterization. Both liver morphology and usual lesion MRI features were analyzed and their distribution correlated to the final pathological result (Khi-2 or Fisher exact tests, Student t-test or Mann-Whitney U test, as appropriate). Read More

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Oxaliplatin-Induced Sinusoidal Obstruction Syndrome Masquerading as Colorectal Liver Metastasis: A Case Report.

J Gastrointest Cancer 2022 Jun 6. Epub 2022 Jun 6.

Department of Surgical Oncology, Tata Memorial Hospital, Homi Bhabha National Institute, Ernest Borges Road, Parel, Mumbai, 400012, India.

Introduction: Oxaliplatin-based chemotherapy is commonly used in adjuvant treatment of colon cancer as well as in neoadjuvant setting in patients with liver metastases. However oxaliplatin can cause damage to non-tumor bearing liver which presents as sinusoidal obstructive syndrome (SOS). These changes are difficult to differentiate from metastasis clinic-radiologically and manifests as sinusoidal dilatation, peliosis and nodular regenerative hyperplasia. Read More

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Giant focal nodular hyperplasia with a background of hepatic steatosis in a 14-year-old boy.

J Surg Case Rep 2022 May 27;2022(5):rjac238. Epub 2022 May 27.

Department of Surgery, St Jude Children's Research Hospital, Memphis, TN, USA.

Giant focal nodular hyperplasia (GFNH) is rarely seen in children, presenting complex diagnostic and management considerations. Pathognomonic radiographic findings can be absent in this population, and the nuances of pathologic examination are critical. We present a child with a GFNH involving the right side of the liver arising in the background of hepatic steatosis. Read More

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A Rare Case of Diffuse Nodular Lymphoid Hyperplasia With Rectal Involvement.

Cureus 2022 May 2;14(5):e24671. Epub 2022 May 2.

Gastroenterology, Nassau University Medical Center, East Meadow, USA.

Nodular lymphoid hyperplasia (NLH) is characterized by the growth of multiple discrete small submucosal nodules specifically confined to the lamina propria and superficial submucosa layers of the intestinal wall. Gastric and rectal involvement of NLH is exceedingly rare. To date, few case reports have described diffuse NLH presenting with multiple submucosal lymphomatous polyposis occurring in the rectum. Read More

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Diode Laser Excision of Focal Epithelial Hyperplasia (Heck's Disease): A Case Report.

J Lasers Med Sci 2022 10;13:e6. Epub 2022 Feb 10.

School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.

Focal epithelial hyperplasia (FEH), also known as Heck's disease, is a human papilloma virus induced proliferation of epithelial cells, which causes asymptomatic lesions in the oral mucosa. Heck's disease is more prevalent among children or in a family. Despite the self-limitation of lesions, they may progress or cause esthetical and functional discomforts. Read More

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February 2022

Oral Warty Dyskeratoma-A Systematic Review of the Literature.

Diagnostics (Basel) 2022 May 20;12(5). Epub 2022 May 20.

Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, WHO Collaborating Centre for Oral Cancer, London SE1 9RT, UK.

Objective: To systematically review the clinicopathological features of oral warty keratoma based on published literature.

Materials And Methods: PubMed and Scopus databases were searched for reports of oral warty dyskeratoma. Of the 52 identified articles, only 25 articles (43 cases) satisfied the selection criteria (case report/series in the English language reporting clinicopathologically diagnosed oral warty dyskeratoma/oral focal acantholytic keratosis/oral isolated dyskeratosis follicularis in humans). Read More

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Genomic analysis of focal nodular hyperplasia with associated hepatocellular carcinoma unveils its malignant potential: a case report.

Commun Med (Lond) 2022 3;2:11. Epub 2022 Feb 3.

Visceral Surgery and Precision Medicine Research Laboratory, Department of Biomedicine, University of Basel, Basel, Switzerland.

Background: Focal nodular hyperplasia (FNH) is typically considered a benign tumor of the liver without malignant potential. The co-occurrence of FNH and hepatocellular carcinoma (HCC) has been reported in rare cases. In this study we sought to investigate the clonal relationship between these lesions in a patient with FNH-HCC co-occurrence. Read More

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February 2022

A Machine Learning-Based Approach for Classification of Focal Splenic Lesions Based on Their CT Features.

Front Vet Sci 2022 2;9:872618. Epub 2022 May 2.

Department of Animal Medicine, Production and Health, University of Padua, Viale dell'Università 16, Padua, Italy.

The aim of the study was to describe the CT features of focal splenic lesions (FSLs) in dogs in order to predict lesion histotype. Dogs that underwent a CT scan and had a FSL diagnosis by cytology or histopathology were retrospectively included in the study. For the statistical analysis the cases were divided into four groups, based on the results of cytopatholoy or hystopathology, namely: nodular hyperplasia (NH), other benign lesions (OBLs), sarcoma (SA), round cell tumour (RCT). Read More

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Radiomics Study for Differentiating Focal Hepatic Lesions Based on Unenhanced CT Images.

Front Oncol 2022 27;12:650797. Epub 2022 Apr 27.

Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.

Objectives: To investigate the feasibility of computer-aided discriminative diagnosis among hepatocellular carcinoma (HCC), hepatic metastasis, hepatic hemangioma, hepatic cysts, hepatic adenoma, and hepatic focal nodular hyperplasia, based on radiomics analysis of unenhanced CT images.

Methods: 452 patients with 77 with HCC, 104 with hepatic metastases, 126 with hepatic hemangioma, 99 with hepatic cysts, 24 with FNH, 22 with HA, who underwent CT examination from 2016 to 2018, were included. Radcloud Platform was used to extract radiomics features from manual delineation on unenhanced CT images. Read More

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A child with Hepatic Focal Nodular Hyperplasia: A rare case report.

Asian J Surg 2022 May 12. Epub 2022 May 12.

Department of Hepatobiliary Surgery, Binzhou Medical University Hospital, Binzhou City, Shandong Province, 256603, People's Republic of China. Electronic address:

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CD44 is involved in liver regeneration through enhanced uptake of extracellular cystine.

Clin Transl Med 2022 May;12(5):e873

College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea.

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Adapting the Utility of Lipiodol CT in Treating Small Hepatocellular Carcinoma.

J Clin Exp Hepatol 2022 Mar-Apr;12(2):664-668. Epub 2021 Jul 30.

Department of Gastroenterology, All India Institute of Medical Sciences, New Delhi, India.

Introduction: Multiphase MRI liver is the gold-standard imaging modality for staging hepatocellular carcinoma (HCC) in patients with cirrhosis. Often, small HCCs diagnosed on multiphase MRI are occult on B-mode ultrasound and multiphase CT (MPCT) and thus pose a challenge for loco-regional therapy. We adapted the technique of lipiodol CT in treating two such patients of small HCC. Read More

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Modified contrast-enhanced ultrasonography with the new high-resolution examination technique of high frame rate contrast-enhanced ultrasound (HiFR-CEUS) for characterization of liver lesions: First results.

Clin Hemorheol Microcirc 2022 Apr 16. Epub 2022 Apr 16.

Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany.

Aim: To examine to what extent the high frame rate contrast-enhanced ultrasound (HiFR) diagnostic enables the conclusive diagnosis of liver changes with suspected malignancy.

Material/methods: Ultrasound examinations were performed by an experienced examiner using a multifrequency probe (SC6-1) on a high-end ultrasound system (Resona 7, Mindray) to clarify liver changes that were unclear on the B-scan. A bolus of 1-2. Read More

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Living donor liver transplantation for idiopathic portal hypertension with focal nodular hyperplasia.

Surg Case Rep 2022 Apr 21;8(1):73. Epub 2022 Apr 21.

Division of Hepatobiliary and Pancreas Surgery, Department of Surgery, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan.

The patient was a 61-year-old woman with a history of diabetes mellitus who had undergone ileocecal resection for ascending colon carcinoma 5 years earlier, followed by a postoperative adjuvant chemotherapy with XELOX (capecitabine + oxaliplatin). During follow-up, the liver gradually atrophied, and radiological imaging showed suspicious findings of 20 × 14 mm hepatocellular carcinoma (HCC) in the right lobe of the liver. The patient also underwent endoscopic variceal ligation for the esophageal varices. Read More

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Focal nodular hyperplasia after oxaliplatin-based chemotherapy: A diagnostic challenge.

Radiol Case Rep 2022 Jun 5;17(6):1858-1865. Epub 2022 Apr 5.

Department of Radiology, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Turin, Italy.

Chemotherapy could induce benign liver alterations presenting as diffuse or focal lesions mimicking metastases. Oxaliplatin-induced vascular liver injury is described in literature, but the association with FNH-like lesions has been reported in a limited number of cases. We herewith describe the case of a 67-year-old male, who had laparoscopic right-sided hemicolectomy, 8 years ago, because of colonic adenocarcinoma (pT3N0M0) and subsequent adjuvant chemotherapy (capecitabine + oxaliplatin), who referred to the ultrasound service of our Radiology Unit because of abdominal pain. Read More

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A focalis nodularis hyperplasia multimodális kezelése.

Orv Hetil 2022 Apr 10;163(15):606-612. Epub 2022 Apr 10.

1 Semmelweis Egyetem, Általános Orvostudományi Kar, Sebészeti, Transzplantációs és Gasztroenterológiai Klinika Budapest, Üllői út 78., 1082 Magyarország.

Összefoglaló. A focalis nodularis hyperplasia (FNH) a máj második leggyakrabban előforduló benignus góca. Nem malignizálódik, így a jelenlegi ajánlások szerint eltávolítása relatív indikációt képez. Read More

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Features of Nodules in Explants of Children Undergoing Liver Transplantation for Biliary Atresia.

J Clin Med 2022 Mar 13;11(6). Epub 2022 Mar 13.

Swiss Pediatric Liver Center, Geneva University Hospitals, 1205 Geneva, Switzerland.

(1) Background: In patients with biliary atresia (BA) liver nodules can be identified either by pre-transplant imaging or on the explant. This study aimed to (i) analyze the histopathology of liver nodules, and (ii) to correlate histopathology with pretransplant radiological features. (2) Methods: Retrospective analysis of liver nodules in explants of BA patients transplanted in our center (2000-2021). Read More

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Incidental Liver Lesions in children: A practical and evidence-based approach.

Clin Res Hepatol Gastroenterol 2022 May 19;46(5):101904. Epub 2022 Mar 19.

Pediatric Gastroenterology Unit, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto, Largo da Maternidade de Júlio Dinis 45, Porto 4050-651, Portugal.

Incidental liver lesions are increasingly being discovered in the context of the increased use of ultrasound studies and the majority are benign. In children, although individually rare, the differential diagnosis is broad and therefore a systematic approach is of utmost importance to reduce the radiological and disease burden in children and their families. This review article collected current evidence and provides fundamental information for the clinician regarding specific differential diagnoses and unique imaging features of benign liver lesions in children. Read More

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Oxaliplatin related multiple focal nodular hyperplasia mimicking metastasis from a gastric cancer.

J Oncol Pharm Pract 2022 Feb 28:10781552221084617. Epub 2022 Feb 28.

Department of Radiology, 103564Hospital Universitario "Dr José Eleuterio González", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico.

Introduction: The FOLFOX6 scheme is a combination drug chemotherapy that contains calcium leucovorin (folinic acid), fluorouracil, and oxaliplatin, the chronic use of chemotherapy with oxaliplatin can progress to focal nodular hyperplasia (FNH), which is a benign hepatic lesion.

Case Report: We present a case of a 26- year-old female diagnosed with an ovarian mixed germ cell tumor with extension to the peritoneum, treated with 12 cycles in 9 months with neoadjuvant chemotherapy FOLFOX 6 scheme and oophorectomy. A three-year follow-up CT showed three nodular and hypervascular hepatic lesions suspicious of metastatic disease; an MRI with liver-specific contrast confirmed the diagnosis of FNH. Read More

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February 2022

Deep Learning-Based Classification of Hepatocellular Nodular Lesions on Whole-Slide Histopathologic Images.

Gastroenterology 2022 Jun 22;162(7):1948-1961.e7. Epub 2022 Feb 22.

Department of Pathology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China. Electronic address:

Background & Aims: Hepatocellular nodular lesions (HNLs) constitute a heterogeneous group of disorders. Differential diagnosis among these lesions, especially high-grade dysplastic nodules (HGDNs) and well-differentiated hepatocellular carcinoma (WD-HCC), can be challenging, let alone biopsy specimens. We aimed to develop a deep learning system to solve these puzzles, improving the histopathologic diagnosis of HNLs (WD-HCC, HGDN, low-grade DN, focal nodular hyperplasia, hepatocellular adenoma), and background tissues (nodular cirrhosis, normal liver tissue). Read More

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Comparison of the Value of Color Doppler Ultrasound and Multislice Spiral CT in the Differential Diagnosis of Benign and Malignant Nodules in the Liver.

Contrast Media Mol Imaging 2022 2;2022:5251966. Epub 2022 Feb 2.

Department of Ultrasound, Qingdao Xinkang Hospital, Qingdao 266000, China.

Objective: This study aimed to explore the value of color Doppler ultrasound and multislice spiral CT (MSCT) in the differential diagnosis of benign and malignant nodules in the liver.

Methods: The clinical imaging data of 102 patients with nodular hepatocellular carcinoma (hepatocellular carcinoma group) and 50 patients with focal nodular hyperplasia (FNH) of the liver (FNH group) admitted to our hospital were collected, and their color Doppler ultrasound and MSCT imaging features were retrospectively analyzed to explore the value of their clinical application in the differential diagnosis of benign and malignant nodules in the liver.

Results: The sensitivity, accuracy, and negative predictive value of MSCT in the diagnosis of nodular liver cancer were 94. Read More

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Steatotic Hepatitis Presenting as a Huge Hypermetabolic Liver Mass.

Clin Nucl Med 2022 May;47(5):e399-e400

From the Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Abstract: FDG PET/CT scan is a diagnostic imaging modality for oncologic patients, but with false-positive findings in inflammatory diseases. In this interesting case, we present a 24-year-old woman with history of giant cell tumor of the bone (lumbar vertebrae) who underwent whole-body FDG PET/CT scan for treatment response evaluation. FDG PET/CT scan demonstrated a large hypermetabolic tumoral mass lesion in segment VI/VII of the right hepatic lobe. Read More

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Effect of cultured white soft cheese on the histopathological changes in the kidneys and liver of albino rats.

Sci Rep 2022 02 15;12(1):2564. Epub 2022 Feb 15.

Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71515, Egypt.

Three different types of lactic acid bacteria (Lactobacillus helveticus, Lactobacillus rhamnosus and Streptococcus thermophilus S) were used to manufacture white soft cheese. The resultant white soft cheeses were pickled for 28 days at refrigerator temperatures and were fed to the experimental rats. The chemical and microbiological analyses of white soft cheese were conducted at different storage periods (fresh, 7 days, 14 days, 21 days, and 28 days). Read More

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February 2022

Isolated complete caudate lobectomy with Glissonean pedicle isolation using Takasaki's technique and right-left approach: preliminary experience from two case reports.

World J Surg Oncol 2022 Feb 4;20(1):31. Epub 2022 Feb 4.

Department of Oncology, Viet Duc University Hospital, Hanoi, Vietnam.

Background: Tumors located in the caudate lobe may be primary tumor or metastases from other sites. Isolated caudate lobectomy (ICL) is a challenging procedure due to its complex structure and location. The access route to the caudate lobe has an important role in the success of the operation. Read More

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February 2022

LAPAROSCOPIC LIVER RESECTION FOR BENIGN TUMORS: THE CURRENT POSITION.

Arq Bras Cir Dig 2022 31;34(4):e1641. Epub 2022 Jan 31.

Unidade de Cirurgia Hepática, Hospital de Clínicas, Departmento of Gastroenterologia, Faculdade de Medicina da Universidade of São Paulo - USP - Sao Paulo, Brasil.

Methods: The main indications of the use of laparoscopic liver surgery (LLS), in the early days, were benign liver lesions. As LLS became more popular, indications for malignant diseases outnumbered those for benign ones. This study aims to rule out the indications and results of LLS for the treatment of benign liver tumors. Read More

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February 2022