277 results match your criteria Solid Omental Tumors

Successful laparoscopy-assisted en bloc resection of bulky omental malignant lymphoma involving the ascending colon and multiple lymph node metastases: Report of a technically demanding case in a pediatric patient.

Asian J Endosc Surg 2022 May 17. Epub 2022 May 17.

Department of Pediatric Surgery, Research Field in Medical and Health Sciences, Medical and Dental Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan.

We herein report a 13-year-old boy with a chief complaint of abdominal pain and a palpable mass. Contrast-enhanced computed tomography (CT) scan showed an abdominal bulky tumor involving the ascending colon causing severe stenosis, with multiple abdominal lymph node metastases detected by positron emission tomography (PET)-CT. Laparoscopic radical resection with right hemicolectomy and lymph node dissection was planned. Read More

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Omental lipoma in pediatric age group: clinical presentation, image findings and management.

Einstein (Sao Paulo) 2022 14;20:eRC5584. Epub 2022 Feb 14.

Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.

A 2-year-old female patient, admitted in the emergency room, presented diarrhea for 5 days and bloody stools in the last 24 hours. Physical examination revealed no significant findings. Ultrasound was initially performed, showing an elongated, well delimited and solid mass occupying since right hypocondrium until left iliac fossa, displacing adjacent structures. Read More

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February 2022

Computed tomographic findings in female genital tuberculosis tubo-ovarian masses.

Indian J Tuberc 2022 Jan 9;69(1):58-64. Epub 2021 Mar 9.

Department of Radio Diagnosis, AIIMS, New Delhi, India.

Female genital tuberculosis (FGTB) is a common cause of infertility in developing countries. It can manifest as menstrual disturbances, infertility and pelvic masses.

Objective: To evaluate the role of computed tomography in diagnosis of female genital tuberculosis with tubo-ovarian (adnexal) masses. Read More

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January 2022

Extrahepatic metastases of hepatocellular carcinoma on F FDG PET CT.

J Egypt Natl Canc Inst 2021 Nov 26;33(1):36. Epub 2021 Nov 26.

Department of Nuclear Medicine & Molecular Imaging, Amrita Institute of Medical Sciences, (Amrita Vishwa Vidyapeetham), Cochin, Kerala, 682041, India.

Background: To determine locations, relative frequencies, imaging features, and pattern of distribution of extrahepatic metastasis from hepatocellular carcinoma (HCC) on 2-deoxy-2-[fluorine-18]fluoro-D-glucose (F-FDG) PET CT.

Methods: FDG PET CT scans of 224 consecutive patients of HCC acquired between 2010 and 2018 were reviewed. Fifty-six patients detected with extrahepatic metastasis on FDG PET CT were retrospectively analyzed. Read More

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November 2021

A case of ovarian serous cystadenofibroma with scattered lesions in pelvic cavity, like malignant disseminations.

J Obstet Gynaecol Res 2021 Dec 6;47(12):4496-4501. Epub 2021 Sep 6.

Department of Obstetrics and Gynecology, Fujita Health University, Bantane Hospital, Nagoya, Japan.

Ovarian serous cystadenofibroma is a relatively rare subtype of serous cystadenoma classified as ovarian benign epithelial tumor. We report a rare case of ovarian serous cystadenofibroma with scattered lesions in pelvic cavity, like malignant disseminations. The patient was 22 years old, gravida 0, para 0. Read More

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December 2021

Steroid Cell Tumor of the Ovary Presenting with Ascites: A Rare Neoplasm in a Postmenopausal Woman.

J Midlife Health 2021 Jan-Mar;12(1):82-84. Epub 2021 Apr 17.

Department of Cytology and Gynecological Pathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

Steroid cell tumors of the ovary are rare sex-cord stromal tumors, accounting for approximately 0.1% of all ovarian neoplasms. Majority of these tumors are benign, occur in pre-menopausal women and are associated with hyperandrogenism. Read More

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Laparoscopic resection of a paraganglioma in the greater omentum mimicking a peripancreatic neoplasm: a case report.

Clin J Gastroenterol 2021 Oct 30;14(5):1364-1370. Epub 2021 May 30.

Department of Hepato-Biliary-Pancreatic Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo, 113-8677, Japan.

A paraganglioma is a tumor originating in the sympathetic or parasympathetic nervous system. Its diagnosis may sometimes be confusing if it occurs in an atypical site. We described herein a case of a peripancreatic paraganglioma originating in the greater omentum. Read More

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October 2021

Characterizing the tumor microenvironment of metastatic ovarian cancer by single-cell transcriptomics.

Cell Rep 2021 05;35(8):109165

Section of Genetic Medicine, Department of Medicine, University of Chicago, 5841 S. Maryland Avenue, Chicago, IL 60637, USA. Electronic address:

Understanding the cellular composition of the tumor microenvironment and the interactions of the cells is essential to the development of successful immunotherapies in cancer. We perform single-cell RNA sequencing (scRNA-seq) of 9,885 cells isolated from the omentum in 6 patients with ovarian cancer and identify 9 major cell types, including cancer, stromal, and immune cells. Transcriptional analysis of immune cells stratifies our patient samples into 2 groups: (1) high T cell infiltration (high T) and (2) low T cell infiltration (low T). Read More

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Short-Term Outcomes from a Randomized Screening Phase II Non-inferiority Trial Comparing Omentectomy and Omentum Preservation for Locally Advanced Gastric Cancer: the TOP-G Trial.

World J Surg 2021 06 10;45(6):1803-1811. Epub 2021 Feb 10.

Department of Surgery, Fujisawa Shonandai Hospital, Fujisawa, Japan.

Background: Omentectomy is considered an essential part of curative gastrectomy for locally advanced gastric cancer (GC), albeit without solid evidence. We conducted a randomized phase II trial (the TOP-G trial) comparing omentectomy and omentum preservation for gastric cancer. This report describes the short-term findings regarding the trial's secondary endpoints. Read More

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[A Case of Mature Teratoma in the Hepatoduodenal Ligament].

Gan To Kagaku Ryoho 2020 Dec;47(13):2239-2241

Dept. of Surgery, Hyogo Prefectural Nishinomiya Hospital.

A 60's woman was admitted to our hospital because of palpitations that occurred with exertion. Coronary angiography computed tomography(CT)of suspected angina detected a tumor in the pancreatic head region. Abdominal CT showed a poorly enhanced 40×32 mm solid tumor in the hepatoduodenal ligament that contained a fatty component and calcification. Read More

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December 2020

Biomarkers for site-specific response to neoadjuvant chemotherapy in epithelial ovarian cancer: relating MRI changes to tumour cell load and necrosis.

Br J Cancer 2021 03 4;124(6):1130-1137. Epub 2021 Jan 4.

Cancer Research UK Cancer Imaging Centre, Division of Radiotherapy and Imaging, The Institute of Cancer Research, 123 Old Brompton Road, London, SW7 3RP, UK.

Background: Diffusion-weighted magnetic resonance imaging (DW-MRI) potentially interrogates site-specific response to neoadjuvant chemotherapy (NAC) in epithelial ovarian cancer (EOC).

Methods: Participants with newly diagnosed EOC due for platinum-based chemotherapy and interval debulking surgery were recruited prospectively in a multicentre study (n = 47 participants). Apparent diffusion coefficient (ADC) and solid tumour volume (up to 10 lesions per participant) were obtained from DW-MRI before and after NAC (including double-baseline for repeatability assessment in n = 19). Read More

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Clinicopathological and immunohistochemical study of 29 cases of solid-pseudopapillary neoplasms of the pancreas in patients under 20 years of age along with detailed review of literature.

Diagn Pathol 2020 Dec 9;15(1):139. Epub 2020 Dec 9.

Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan.

Background: Pancreatic Solid Pseudopapillary Neoplasms (SPNs) are rare low-grade malignant tumors with a marked preponderance for young females. Objective was to describe the morphology, differential diagnosis, and prognosis of SPNs in patients under 20 years of age and present a detailed review of literature.

Methods: A total of 29 cases in patients under 20 years of age reported as SPN during the period January 2014 to December 2019, were included in the study. Read More

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December 2020

Borderline ovarian tumors: French guidelines from the CNGOF. Part 1. Epidemiology, biopathology, imaging and biomarkers.

J Gynecol Obstet Hum Reprod 2021 Jan 4;50(1):101965. Epub 2020 Nov 4.

Centre Clinico-Biologique d'AMP, Pôle Femmes - Parents- Enfants, AP-HM, Hôpital de La Conception, 147 Bd Baille, 13005 Marseille, France.

The incidence (rate per 100 000) of borderline ovarian tumors (BOTs) increases progressively with age, starting at 15-19 years and peaking at around 4.5 cases per 100 000 at an age of 55-59 years (LE3) with a median age of 46 years. The five year survival for FIGO stages I, II, III and IV is 99. Read More

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January 2021

Modulation of Immune Infiltration of Ovarian Cancer Tumor Microenvironment by Specific Subpopulations of Fibroblasts.

Cancers (Basel) 2020 Oct 29;12(11). Epub 2020 Oct 29.

Indiana University School of Medicine-Bloomington, Indiana University, Bloomington, IN 47405, USA.

Tumor immune infiltration plays a key role in the progression of solid tumors, including ovarian cancer, and immunotherapies are rapidly emerging as effective treatment modalities. However, the role of cancer-associated fibroblasts (CAFs), a predominant stromal constituent, in determining the tumor-immune microenvironment and modulating efficacy of immunotherapies remains poorly understood. We have conducted an extensive bioinformatic analysis of our and other publicly available ovarian cancer datasets (GSE137237, GSE132289 and GSE71340), to determine the correlation of fibroblast subtypes within the tumor microenvironment (TME) with the characteristics of tumor-immune infiltration. Read More

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October 2020

Unusual presentation of small bowel GIST: diffuse omental & mesenteric sarcomatosis.

J Surg Case Rep 2020 Sep 21;2020(9):rjaa341. Epub 2020 Sep 21.

Pathology Unit, "S. Pertini" Hospital, Rome, Italy.

Gastrointestinal stromal tumors (GISTs) represent ~1% of gastrointestinal (GI) tract neoplasms. Unusual presentation of a small bowel GIST with diffuse omental and mesenteric implants in a symptomatic patient is reported. CT scan in a 68-years-old woman showed multiple processes with solid density and colliquation areas in the abdominal cavity. Read More

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September 2020

Primary mixed large cell neuroendocrine and high grade serous carcinoma of the endometrium.

BMJ Case Rep 2020 Sep 2;13(9). Epub 2020 Sep 2.

Gynaecology Oncology, King Edward Memorial Hospital for Women Perth, Subiaco, Western Australia, Australia.

Endometrial large-cell neuroendocrine carcinoma admixed with a high-grade serous (HGS) adenocarcinoma is extremely rare with only one reported case in the literature. We present the second reported case in a 47-year-old woman who presented with abdominal pain, distension and loss of weight. On examination she had a fixed pelvic mass and vascular left vaginal mass. Read More

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September 2020

Preoperative 3D reconstruction images for paediatric tumours: Advantages and drawbacks.

Pediatr Blood Cancer 2021 01 22;68(1):e28670. Epub 2020 Aug 22.

Department of Visceral and Neonatal Paediatric Surgery, Sorbonne Université - APHP.6, Hôpital Armand Trousseau, Paris, France.

Rationale: Three-dimensional reconstruction (3DR) of preoperative images may improve the presurgical assessment of tumours prior to removal. We aimed to analyse the advantages and discrepancies of preoperative 3DR in paediatric tumours.

Methods: We conducted a prospective observational study from 2016 to 2019, including patients with thoraco-abdominal tumours having predictable surgical risks on preoperative images (encasement of vessels posing vascular risks, ie, neuroblastic and soft tissue tumours or parenchyma preservation of the invaded organ, ie, liver and kidney). Read More

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January 2021

A Report of a Rare Case of an Advanced Adult Granulosa Cell Tumor Initially Diagnosed as Primary Ovarian Melanoma.

Cureus 2020 May 1;12(5):e7921. Epub 2020 May 1.

Medical Oncology, Mohammed VI University Hospital, Oujda, MAR.

Ovarian granulosa cell tumors are rare gynecological cancers with favorable clinical evolution and survival outcomes. We report a new case of this presentation in a patient that was initially diagnosed as a bilateral primary melanoma of the ovary. The patient is a 51-year-old woman with a history of abdominal swelling and deterioration of her general conditions. Read More

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Peritoneal Carcinomatosis of Colorectal Origin in Cyclosporine Immunosuppressed Rats.

Gulf J Oncolog 2020 May;1(33):27-30

Surgical Research Laboratory, Saint Joseph University, Beirut, Lebanon.

Objective: We evaluate the seeding step of peritoneal carcinomatosis cancer as a surrogate for the role of the omentum in colorectal tumors.

Methods: The study included 5 groups of adult male Sprague Dawley rats: immunocompetent rats (group 1), immunosuppressed rats without omentectomy (group 2), immunosuppressed rats with omentectomy (group 3), immunosuppressed rats with omentectomy receiving NSAID (group 4), and immunosuppressed rats without omentectomy receiving NSAID (group 5). Except for group 1, the rats were immunosuppressed using cyclosporine orally at a dose of 25 mg/kg/day that was started 48 hours before tumor cell infiltration in the peritoneum. Read More

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Ultrasonographic findings and diagnosis of omental dedifferentiated liposarcoma: a case report.

J Rural Med 2020 Apr 1;15(2):68-72. Epub 2020 Apr 1.

Department of Gastroenterology, Gifu University Graduate School of Medicine, Japan.

Liposarcoma is one of the most common types of soft tissue sarcomas and can develop at any site, although omental liposarcoma is extremely rare. Omental liposarcoma has a poor prognosis because the diagnosis is difficult, until it presents as a large tumor causing severe noticeable clinical symptoms. A 51-year-old male with lower abdominal pain was referred to our clinic. Read More

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Tuberculosis and ovarian malignancy: Sometimes mimics, sometimes coexists.

J Obstet Gynaecol Res 2020 Jun 3;46(6):945-949. Epub 2020 Apr 3.

Department of Obstetrics & Gynaecology, All India Institute of Medical Sciences, Jodhpur, India.

Tuberculosis is a disease prevalent all over the world with India contributing to a larger share. Pulmonary tuberculosis presents with generalized symptoms of malaise, low grade fever and cough. On the other hand, genital tuberculosis presents with a variety of symptoms in each age group and is often underdiagnosed and missed. Read More

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Peritoneal metastasis in Stage IB1 adenocarcinoma cervix: A rare entity.

J Cancer Res Ther 2019 Oct-Dec;15(6):1415-1417

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

The presence of ovarian or peritoneal metastasis in early-stage cervical malignancy is a rare entity. It often poses a diagnostic challenge whether it is a synchronous primary tumor or a metastatic lesion. A 63-year-old postmenopausal woman presented with Stage 1B1 carcinoma cervix with ascites, and a 5. Read More

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Pulmonary and mediastinum metastasis of uterine leiomyoma: A case report.

Medicine (Baltimore) 2019 Dec;98(49):e18276

Department of pathology, Children's hospital of Hebei Province, Shijiazhuang, China.

Rationale: Pulmonary benign metastasizing leiomyoma (PBML) is rare, usually occurs in women who underwent hysterectomy during the reproductive years, and has no obvious clinical symptoms. A full understanding of the characteristics of PBML is important for its sequential treatment and prognosis.

Patient Concerns: In this report, a 36-year-old female patient with previous uterine leiomyoma who underwent 3 surgical resections of the uterus, bilateral fallopian tubes, and partial omentum was investigated. Read More

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December 2019

Highly differentiated follicular carcinoma of ovary: Use of imprint cytology at intraoperative consultation.

Diagn Cytopathol 2020 Apr 2;48(4):360-363. Epub 2019 Dec 2.

Department of pathology, Pennsylvania Hospital, University of Pennsylvania Health System, Philadelphia, Pennsylvania.

Highly differentiated follicular carcinoma of ovary (HDFCO) is a rare entity known to arise in struma ovarii. Clinical presentation and radiological features mimic other cystic ovarian neoplasm. Thus, intraoperative diagnosis of this entity can be challenging. Read More

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Subclassification of Multivisceral Resections for T4b Colon Cancer with Relevance for Postoperative Complications and Oncological Risks.

J Gastrointest Surg 2020 09 20;24(9):2113-2120. Epub 2019 Nov 20.

Department of Surgery, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.

Background: Multivisceral resection for T4b colon cancer constitutes a heterogeneous group of surgical procedures. The purpose of this study was to explore clinically distinct categories of multivisceral resection, with subsequent correlation to postoperative complications and oncological outcomes.

Methods: In this multicenter cohort study, all consecutive patients without metastases who underwent multivisceral resection for pT4bN0-2M0 colon cancer between 2000 and 2014 were included. Read More

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September 2020

The role of preoperative imaging and tumor markers in predicting malignant ovarian masses in children.

Pediatr Surg Int 2020 Mar 7;36(3):333-339. Epub 2019 Nov 7.

Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200040, China.

Purpose: To investigate the clinicopathololgic characteristics and the predicting value of preoperative imaging and tumor markers in children with ovarian masses.

Methods: Patients admitted in Shanghai children's hospital with ovary neoplasms between 2010.01 and 2015. Read More

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Spontaneous rupture of solid pseudopapillary tumor of pancreas: A case report and review of literature.

Medicine (Baltimore) 2019 Nov;98(44):e17554

Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University.

Introduction: Solid pseudopapillary tumors (SPT) account for 1% to 3% of all pancreatic tumors. They have low malignant potential with a favorable prognosis, and predominantly occur in young women. The pathogenesis and clinical behavior of SPT are still uncertain. Read More

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November 2019

Gastrointestinal Stromal Tumor (GIST) from esophagus to anorectum - diagnosis, response evaluation and surveillance on computed tomography (CT) scan.

Indian J Radiol Imaging 2019 Apr-Jun;29(2):133-140

Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India.

Gastrointestinal stromal tumor (GIST) are the most common non epithelial tumor of the gastrointestinal (GI) tract. They arise from interstitial cells of Cajal present in the myenteric plexus. They can also arise outside the GI tract from mesentery, retro peritoneum and omentum. Read More

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Roles of omental and bone marrow adipocytes in tumor biology.

Adipocyte 2019 12;8(1):304-317

a Department of Pathology, Yonsei University College of Medicine , Seoul , South Korea.

Accumulating evidence highlights the importance of interactions between tumour cells and stromal cells for tumour initiation, progression, and metastasis. In tumours that contain adipocyte in their stroma, adipocytes contribute to modification of tumour microenvironment and affect metabolism of tumour and tumour progression by production of cytokines and adipokines from the lipids. The omentum and bone marrow (BM) are highly adipocyte-rich and are also common metastatic and primary tumour developmental sites. Read More

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December 2019