1
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Mitsuo K, Kaneko H, Tsukamoto M, Asami Y, Miyazawa A, Miyashita K, Onoda G, Yamashita H, Hatano M, Kamiyama M, Okuda S. Retroperitoneal leiomyosarcoma mimicking an ovarian tumor diagnosed using a negative ovarian pedicle sign. Radiol Case Rep 2024; 19:3429-3433. [PMID: 38872746 PMCID: PMC11169071 DOI: 10.1016/j.radcr.2024.04.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 06/15/2024] Open
Abstract
Retroperitoneal leiomyosarcoma (RPLMS) is rare and usually presents as a large abdominal mass with poor clinical symptoms. Radiological findings of an RPLMS arising in the pelvis of a woman resemble those of adnexal tumors. Herein, we present a case of RPLMS mimicking an adnexal tumor which was differentiated from having an ovarian origin as the right ovarian vein was passing through the tumor but there was no direct vascular connection with the tumor. Therefore, it is important to identify the ovarian vein to distinguish between these tumors.
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Affiliation(s)
- Koji Mitsuo
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Hideki Kaneko
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Makoto Tsukamoto
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Yuta Asami
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Azumi Miyazawa
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Keiichi Miyashita
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Go Onoda
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | | | - Mami Hatano
- Department of Pathology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Megumi Kamiyama
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
| | - Shigeo Okuda
- Department of Diagnostic Radiology, NHO Tokyo Medical Center, Tokyo, Japan
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Kim H, Choi MH, Lee YJ, Han D, Mostapha M, Nickel D. Deep learning-accelerated T2-weighted imaging versus conventional T2-weighted imaging in the female pelvic cavity: image quality and diagnostic performance. Acta Radiol 2024; 65:499-505. [PMID: 38343091 DOI: 10.1177/02841851241228192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
BACKGROUND The deep learning (DL)-based reconstruction algorithm reduces noise in magnetic resonance imaging (MRI), thereby enabling faster MRI acquisition. PURPOSE To compare the image quality and diagnostic performance of conventional turbo spin-echo (TSE) T2-weighted (T2W) imaging with DL-accelerated sagittal T2W imaging in the female pelvic cavity. METHODS This study evaluated 149 consecutive female pelvic MRI examinations, including conventional T2W imaging with TSE (acquisition time = 2:59) and DL-accelerated T2W imaging with breath hold (DL-BH) (1:05 [0:14 × 3 breath-holds]) in the sagittal plane. In 294 randomly ordered sagittal T2W images, two radiologists independently assessed image quality (sharpness, subjective noise, artifacts, and overall image quality), made a diagnosis for uterine leiomyomas, and scored diagnostic confidence. For the uterus and piriformis muscle, quantitative imaging analysis was also performed. Wilcoxon signed rank tests were used to compare the two sets of T2W images. RESULTS In the qualitative analysis, DL-BH showed similar or significantly higher scores for all features than conventional T2W imaging (P <0.05). In the quantitative analysis, the noise in the uterus was lower in DL-BH, but the noise in the muscle was lower in conventional T2W imaging. In the uterus and muscle, the signal-to-noise ratio was significantly lower in DL-BH than in conventional T2W imaging (P <0.001). The diagnostic performance of the two sets of T2W images was not different for uterine leiomyoma. CONCLUSIONS DL-accelerated sagittal T2W imaging obtained with three breath-holds demonstrated superior or comparable image quality to conventional T2W imaging with no significant difference in diagnostic performance for uterine leiomyomas.
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Affiliation(s)
- Hokun Kim
- Department of Radiology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Moon Hyung Choi
- Department of Radiology, Eunpyeong St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young Joon Lee
- Department of Radiology, Eunpyeong St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dongyeob Han
- Research Collaboration, Siemens Healthineers Ltd, Seoul, Republic of Korea
| | - Mahmoud Mostapha
- Digital Technology & Innovation, Siemens Medical Solutions USA, Inc., Princeton, NJ, USA
| | - Dominik Nickel
- MR Applications Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany
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3
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Ghuman N, Atagu N, Sachdev R, Covarrubias O, Gregg L, Brookmeyer C, Johnson P, Gomez E. 'That's just the Ovary!' and other cases of mistaken identity on CT of the female pelvis. Curr Probl Diagn Radiol 2024; 53:422-435. [PMID: 38365459 DOI: 10.1067/j.cpradiol.2024.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/16/2024] [Indexed: 02/18/2024]
Abstract
CT is often the first imaging test in female patients with lower abdominal and pelvic pain because of the wide availability of CT and differential diagnoses that span both gynecologic and gastrointestinal disease. Pathology within the female pelvis may be difficult to diagnose on CT owing to suboptimal delineation of anatomy in comparison to MRI and ultrasound. These challenges are confounded by overlapping imaging features of a wide range of gynecologic entities and can lead to diagnostic dilemmas. High value CT interpretation will direct the clinician to the best next diagnostic step as ultrasound and MRI provide superior soft tissue delineation. Other imaging modalities, laboratory investigations, or tissue sampling may be necessary to definitively characterize indeterminate lesions. In this review, we illustrate various cases of mistaken identity on CT of the female pelvis involving the ovaries, uterus, and peritoneal cavity while highlighting clinical pearls that may aid the radiologist in arriving at the correct diagnosis and avoiding potential pitfalls.
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Affiliation(s)
- Naveen Ghuman
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Norman Atagu
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Rahul Sachdev
- St.Agnes Medical Center, Department of Internal Medicine, Fresno, CA, USA
| | - Oscar Covarrubias
- Medical Student, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lydia Gregg
- Johns Hopkins Department of Art as Applied to Medicine and Division of Interventional Neuroradiology, Baltimore, MD, USA
| | - Claire Brookmeyer
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Pamela Johnson
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Erin Gomez
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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4
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Khouchoua S, Imrani K, Bourekba I, Guelzim Y, Moatassim Billah N, Nassar I. Chronic abdominal pain revealing a gastrointestinal stromal tumor. Radiol Case Rep 2024; 19:961-965. [PMID: 38204938 PMCID: PMC10776905 DOI: 10.1016/j.radcr.2023.11.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/18/2023] [Accepted: 11/22/2023] [Indexed: 01/12/2024] Open
Abstract
Gastrointestinal stromal tumors (GIST) are mesenchymal neoplasms most frequently seen in the stomach and small intestine, arising in the muscularis propria of the intestinal wall. Given its nonspecific clinical presentation, it can represent a diagnostic challenge, especially in abdominopelvic locations. Lesion evaluation of abdominopelvic tumors can be difficult and lead to misinterpretation in assessing their origin. We report the case of an 84-year-old woman with a voluminous small bowel GIST mimicking a uterine neoplasm.
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Affiliation(s)
- Selma Khouchoua
- Central Radiology Department, Ibn Sina University Hospital Center, Mohamed V University, Ave Abderrahim Bouabid, 10000, Rabat, Morocco
| | - Kaoutar Imrani
- Central Radiology Department, Ibn Sina University Hospital Center, Mohamed V University, Ave Abderrahim Bouabid, 10000, Rabat, Morocco
| | - Iliass Bourekba
- Central Radiology Department, Ibn Sina University Hospital Center, Mohamed V University, Ave Abderrahim Bouabid, 10000, Rabat, Morocco
| | - Yousra Guelzim
- Central Radiology Department, Ibn Sina University Hospital Center, Mohamed V University, Ave Abderrahim Bouabid, 10000, Rabat, Morocco
| | - Nabil Moatassim Billah
- Central Radiology Department, Ibn Sina University Hospital Center, Mohamed V University, Ave Abderrahim Bouabid, 10000, Rabat, Morocco
| | - Ittimade Nassar
- Central Radiology Department, Ibn Sina University Hospital Center, Mohamed V University, Ave Abderrahim Bouabid, 10000, Rabat, Morocco
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Montanarella M, Gonzalez Baerga CI, Menendez Santos MJ, Elsherif S, Boldig K, Kumar S, Virarkar M, Gopireddy DR. Retroperitoneal anatomy with the aid of pathologic fluid: An imaging pictorial review. J Clin Imaging Sci 2023; 13:36. [PMID: 38205277 PMCID: PMC10778072 DOI: 10.25259/jcis_79_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/24/2023] [Indexed: 01/12/2024] Open
Abstract
The retroperitoneum, a complex anatomical space within the abdominopelvic region, encompasses various vital abdominal organs. It is compartmentalized by fascial planes and contains potential spaces critical in multiple disease processes, including inflammatory effusions, hematomas, and neoplastic conditions. A comprehensive understanding of the retroperitoneum and its potential spaces is essential for radiologists in identifying and accurately describing the extent of abdominopelvic disease. This pictorial review aims to describe the anatomy of the retroperitoneum while discussing commonly encountered pathologies within this region. Through a collection of illustrative images, this review will provide radiologists with valuable insights into the retroperitoneum, facilitating their diagnostic proficiency to aid in appropriate patient clinical management.
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Affiliation(s)
- Matthew Montanarella
- Department of Radiology, University of Florida-Jacksonville, Jacksonville, Florida, United States
| | | | | | - Sherif Elsherif
- Department of Radiology, University of Florida-Jacksonville, Jacksonville, Florida, United States
| | - Kimberly Boldig
- Department of Internal Medicine, University of Florida-Jacksonville, Jacksonville, Florida, United States
| | - Sidhu Kumar
- Department of Radiology, University of Florida-Jacksonville, Jacksonville, Florida, United States
| | - Mayur Virarkar
- Department of Radiology, University of Florida-Jacksonville, Jacksonville, Florida, United States
| | - Dheeraj Reddy Gopireddy
- Department of Radiology, University of Florida-Jacksonville, Jacksonville, Florida, United States
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Jannusch K, Morawitz J, Schweiger B, Weiss D, Schimmöller L, Minko P, Herrmann K, Fendler WP, Quick HH, Antoch G, Umutlu L, Kirchner J, Bruckmann NM. [ 18F]FDG PET/MRI in children suffering from lymphoma: does MRI contrast media make a difference? Eur Radiol 2023; 33:8366-8375. [PMID: 37338559 PMCID: PMC10598113 DOI: 10.1007/s00330-023-09840-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/07/2023] [Accepted: 04/14/2023] [Indexed: 06/21/2023]
Abstract
OBJECTIVES Evaluate the influence of an MRI contrast agent application on primary and follow-up staging in pediatric patients with newly diagnosed lymphoma using [18F]FDG PET/MRI to avoid adverse effects and save time and costs during examination. METHODS A total of 105 [18F]FDG PET/MRI datasets were included for data evaluation. Two different reading protocols were analyzed by two experienced readers in consensus, including for PET/MRI-1 reading protocol unenhanced T2w and/or T1w imaging, diffusion-weighted imaging (DWI), and [18F]FDG PET imaging and for PET/MRI-2 reading protocol an additional T1w post contrast imaging. Patient-based and region-based evaluation according to the revised International Pediatric Non-Hodgkin's Lymphoma (NHL) Staging System (IPNHLSS) was performed, and a modified standard of reference was applied comprising histopathology and previous and follow-up cross-sectional imaging. Differences in staging accuracy were assessed using the Wilcoxon and McNemar tests. RESULTS In patient-based analysis, PET/MRI-1 and PET/MRI-2 both determined a correct IPNHLSS tumor stage in 90/105 (86%) exams. Region-based analysis correctly identified 119/127 (94%) lymphoma-affected regions. Sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy for PET/MRI-1 and PET/MRI-2 were 94%, 97%, 90%, 99%, 97%, respectively. There were no significant differences between PET/MRI-1 and PET/MRI-2. CONCLUSIONS The use of MRI contrast agents in [18F]FDG PET/MRI examinations has no beneficial effect in primary and follow-up staging of pediatric lymphoma patients. Therefore, switching to a contrast agent-free [18F]FDG PET/MRI protocol should be considered in all pediatric lymphoma patients. CLINICAL RELEVANCE STATEMENT This study gives a scientific baseline switching to a contrast agent-free [18F]FDG PET/MRI staging in pediatric lymphoma patients. This could avoid side effects of contrast agents and saves time and costs by a faster staging protocol for pediatric patients. KEY POINTS • No additional diagnostic benefit of MRI contrast agents at [18F]FDG PET/MRI examinations of pediatric lymphoma primary and follow-up staging • Highly accurate primary and follow-up staging of pediatric lymphoma patients at MRI contrast-free [18F]FDG PET/MRI.
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Affiliation(s)
- Kai Jannusch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Janna Morawitz
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Bernd Schweiger
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Daniel Weiss
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Lars Schimmöller
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Peter Minko
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Wolfgang P Fendler
- Department of Nuclear Medicine, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Harald H Quick
- High-Field and Hybrid MR Imaging, University Hospital Essen, University Duisburg-Essen, 45147, Essen, Germany
- Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, 45141, Essen, Germany
| | - Gerald Antoch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
| | - Lale Umutlu
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
| | - Julian Kirchner
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany.
| | - Nils-Martin Bruckmann
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstrasse 5, 40225, Dusseldorf, Germany
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Lupinelli M, Sbarra M, Kilcoyne A, Venkatesan AM, Nougaret S. MR Imaging of Gynecologic Tumors: Pearls, Pitfalls, and Tumor Mimics. Radiol Clin North Am 2023; 61:687-711. [PMID: 37169432 DOI: 10.1016/j.rcl.2023.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
MR imaging is the modality of choice for the pre-treatment evaluation of patients with gynecologic malignancies, given its excellent soft tissue contrast and multi-planar capability. However, it is not without pitfalls. Challenges can be encountered in the assessment of the infiltration of myometrium, vagina, cervical stroma, and parametria, which are crucial prognostic factors for endometrial and cervical cancers. Other challenges can be encountered in the distinction between solid and non-solid tissue and in the identification of peritoneal carcinomatosis for the sonographically indeterminate adnexal mass.
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Affiliation(s)
- Michela Lupinelli
- Department of Radiology, Morgagni-Pierantoni Hospital, Via Carlo Forlanini 34, 47121, Forlì, Italy.
| | - Martina Sbarra
- Unit of Diagnostic Imaging, Fondazione Policlinico Universitario Campus Bio-medico, Via Alvaro Del Portillo, 200, Roma 00128, Italy
| | - Aoife Kilcoyne
- Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA; Harvard Medical School, Boston, MA, USA
| | - Aradhana M Venkatesan
- Department of Abdominal Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Houston, TX 77030, USA
| | - Stephanie Nougaret
- Department of Radiology, IRCM, Montpellier Cancer Research Institute, Montpellier 34090, France; INSERM, U1194, University of Montpellier, Montpellier 34295, France
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8
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Sarre-Lazcano C, Dumitra S, Fiore M. Pelvic soft tissue sarcomas. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2023; 49:1102-1110. [PMID: 35725682 DOI: 10.1016/j.ejso.2022.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 05/28/2022] [Accepted: 06/01/2022] [Indexed: 12/20/2022]
Abstract
Pelvic soft tissue sarcomas (PSTS) are a rare, heterogeneous group of tumors. They have been usually analyzed with retroperitoneal sarcomas (RPS), but actually have key differences. Due to their unique anatomic location, symptomatic presentation of PSTS may be more common than RPS. Adequate imaging approach is paramount for guiding differential diagnosis, while preoperative biopsy is mandatory, especially when preoperative treatment may be considered as initial approach. The most frequent histologic subtype is leiomyosarcoma, which is different as expected in the retroperitoneum where liposarcoma is the commonest histology. Also solitary fibrous tumor is commonly diagnosed in the pelvis. Surgical approach for PSTS differs from that for RPS mainly due to anatomic relations. Similarly, in the lack of definite evidence from specific trials about neoadjuvant and adjuvant treatments, the anatomic constraints to obtain wide margins in the pelvis as well as the expected functional outcome in case of organ resections should be factored into decision for individualized treatment offer. Vascular and genitourinary involvement are frequent, as well as herniation through pelvic foramina. For these reasons a multidisciplinary surgical team should always be considered. Early referral of these patients to high-volume centers is critical and may impact on survival, given that optimal initial resection is a major predictor of curative treatment. International consensus on PSTS treatment is advocated, similarly to the recent efforts realized for RPS.
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Affiliation(s)
- Catherine Sarre-Lazcano
- Department of Surgery, Salvador Zubiran National Institute of Medical Sciences and Nutrition: Salvador Zubiran, Mexico City, Mexico
| | - Sinziana Dumitra
- Department of Surgery, McGill University Health Centre, Montreal, Canada
| | - Marco Fiore
- Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
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Bourgioti C, Konidari M, Moulopoulos LA. Manifestations of Ovarian Cancer in Relation to Other Pelvic Diseases by MRI. Cancers (Basel) 2023; 15:cancers15072106. [PMID: 37046767 PMCID: PMC10093428 DOI: 10.3390/cancers15072106] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023] Open
Abstract
Imaging plays a pivotal role in the diagnostic approach of women with suspected ovarian cancer. MRI is widely used for preoperative characterization and risk stratification of adnexal masses. While epithelial ovarian cancer (EOC) has typical findings on MRI; there are several benign and malignant pelvic conditions that may mimic its appearance on imaging. Knowledge of the origin and imaging characteristics of a pelvic mass will help radiologists diagnose ovarian cancer promptly and accurately. Finally, in special subgroups, including adolescents and gravid population, the prevalence of various ovarian tumors differs from that of the general population and there are conditions which uniquely manifest during these periods of life.
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Affiliation(s)
- Charis Bourgioti
- Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, Aretaieion Hospital, 76 Vas. Sofias Ave., 11528 Athens, Greece
| | - Marianna Konidari
- Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, Aretaieion Hospital, 76 Vas. Sofias Ave., 11528 Athens, Greece
| | - Lia Angela Moulopoulos
- Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, Aretaieion Hospital, 76 Vas. Sofias Ave., 11528 Athens, Greece
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10
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Priyadharshinee G, Sahu TK, Chavadi C. Giant Fibroid Mimicking a Gastrointestinal Stromal Tumor: A Diagnostic Dilemma. Cureus 2023; 15:e35883. [PMID: 37033583 PMCID: PMC10081861 DOI: 10.7759/cureus.35883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
Uterine fibroids are the most common benign pelvic tumors in females of the reproductive age group. Usually, fibroids are confined to the uterus. Here, we report an interesting and rare case of a large 17 cm abdominopelvic mass lesion that led to a diagnostic dilemma between a mesenteric gastrointestinal stromal tumor (GIST) and a uterine fibroid. We had a 26-year-old female who underwent an ultrasound examination of the abdomen as the initial imaging modality and was found to have an abnormally large solid abdominopelvic mass lesion. For further evaluation, a contrast-enhanced CT examination of the abdomen-pelvis was done. Initially, on first look, the mass was thought to be of mesenteric origin, but on further review of images, it was found to be of gynecological origin. Intraoperatively, the solid mass was seen attached to the uterine fundus and underwent excision. Histopathological examination confirmed the mass to be a uterine fibroid. This case study describes the uncommon appearance of this tumor in a young woman, including the clinical presentation, imaging, and surgical findings.
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11
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Nunes Pereira P, Françoise Derchain S, Yoshida A, Hoelz de Oliveira Barros R, Menezes Jales R, Sarian LO. Diffusion-weighted magnetic resonance sequence and CA125/CEA ratio can be used as add-on tools to ultrasound for the differentiation of ovarian from non-ovarian pelvic masses. PLoS One 2023; 18:e0283212. [PMID: 36928256 PMCID: PMC10019666 DOI: 10.1371/journal.pone.0283212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 03/04/2023] [Indexed: 03/17/2023] Open
Abstract
OBJECTIVE To provide a straightforward approach to the sequential use of ultrasound (US), magnetic resonance (MR) and serum biomarkers in order to differentiate the origin of pelvic masses, making the most efficient use of these diagnostic resources. STUDY DESIGN This is a cross-sectional study with 159 patients (133 with ovarian and 26 with non-ovarian tumors) who underwent surgery/biopsy for an adnexal mass. Preoperative CA125 and CEA serum measurements were obtained and a pelvic/abdominal ultrasound was performed. Preoperative pelvic MR studies were performed for all patients. Morphological and advanced MR sequences were obtained. Using a recursive partitioning algorithm to predict tumor origin, we devised a roadmap to determine the probability of non-ovarian origin using only statistically significant US, laboratory and MR parameters. RESULTS Upfront US classification as ovarian versus non-ovarian and CA125/CEA ratio were significantly associated with non-ovarian tumors. Signal diffusion (absent/low versus high) was the only MR parameter significantly associated with non-ovarian tumors. When upfront US designated a tumor as being of ovarian origin, further MR signal diffusion and CA125/CEA ratio were corrected nearly all US errors: patients with MR signal diffusion low/absent and those with signal high but CA125/CEA ratio ≥25 had an extremely low chance (<1%) of being of non-ovarian origin. However, for women whose ovarian tumors were incorrectly rendered as non-ovarian by upfront US, neither MR nor CA125/CEA ratio were able to determine tumor origin precisely. CONCLUSION MR signal diffusion is an extremely useful MR parameter to help determine adnexal mass origin when US and laboratory findings are inconclusive.
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Affiliation(s)
- Patrick Nunes Pereira
- Faculty of Medical Sciences, Department of Obstetrics and Gynecology, State University of Campinas—Unicamp, Campinas, São Paulo, Brazil
- Section of Imaging, Sumaré State Hospital, State University of Campinas, Sumaré, São Paulo, Brazil
| | - Sophie Françoise Derchain
- Faculty of Medical Sciences, Department of Obstetrics and Gynecology, State University of Campinas—Unicamp, Campinas, São Paulo, Brazil
| | - Adriana Yoshida
- Faculty of Medical Sciences, Department of Obstetrics and Gynecology, State University of Campinas—Unicamp, Campinas, São Paulo, Brazil
- * E-mail:
| | | | - Rodrigo Menezes Jales
- Faculty of Medical Sciences, Department of Obstetrics and Gynecology, State University of Campinas—Unicamp, Campinas, São Paulo, Brazil
| | - Luís Otávio Sarian
- Faculty of Medical Sciences, Department of Obstetrics and Gynecology, State University of Campinas—Unicamp, Campinas, São Paulo, Brazil
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12
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Lee NY, Lee EJ, Hong SS, Hwang J, Chang YW, Oh E, Nam B, Jeong J. [Radiologic Evaluation of Uterine Lesions Using a Pattern Recognition Approach]. JOURNAL OF THE KOREAN SOCIETY OF RADIOLOGY 2023; 84:127-149. [PMID: 36818713 PMCID: PMC9935953 DOI: 10.3348/jksr.2022.0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 06/28/2022] [Accepted: 08/06/2022] [Indexed: 01/21/2023]
Abstract
It is important to distinguish uterine lesions from other lesions occurring in the pelvic cavity for the proper management. The primary radiological evaluation of uterine lesions is performed using transvaginal ultrasonography, and if the lesion is too large or shows atypical benign imaging findings, magnetic resonance imaging should be performed. Analyzing radiological findings of uterine lesions through a pattern recognition approach can help establish the accurate diagnosis and treatment plan. In this pictorial assay, we describe imaging characteristics of various lesions arising from the uterus and evaluate them based on the pattern recognition approach.
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Affiliation(s)
- Na Young Lee
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
| | - Eun Ji Lee
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
| | - Seong Sook Hong
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
| | - Jiyoung Hwang
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
| | - Yun-Woo Chang
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
| | - Eunsun Oh
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
| | - Boda Nam
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
| | - Jewon Jeong
- Department of Radiology, Soonchunghyang University Hospital, Seoul, Korea
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Comparison of linear versus macrocyclic gadolinium chelates in rat skeletal muscle. North Clin Istanb 2022; 9:632-637. [PMID: 36685623 PMCID: PMC9833392 DOI: 10.14744/nci.2021.45143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/11/2021] [Accepted: 05/28/2021] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE We investigated the effects on skeletal muscle of gadolinium based linear and macrocyclic radiocontrast agents applied at experimental intervals using histopathological methods. METHODS Thirty-two male Sprague-Dawley rats were included in the study for histopathological analysis. No procedure was performed on the healthy control group. The sham group received 0.1 ml/kg intravenous (IV) saline solution through the tail vein 4 times weekly for 5 weeks. The gadodiamide group received total 2 mmol/kg IV gadodiamide through the tail vein 4 times weekly for 5 weeks. The gadoteric-acid group received 2 mmol/kg IV gadoteric acid through the tail vein 4 times weekly for 5 weeks. RESULTS We determined no marked apoptotic myofibrils associated withcaspase-3 expression in these two groups. Furthermore, no calcineurin expression was observed in myofibrils in the two groups. However, quantitative analyses revealed a decrease in muscle-fiber area in the gadodiamide and gadoteric-acid groups compared to the control group (Respectively; p=0.001 and p=0.017). CONCLUSION In our experimental study, linear and macrocyclic GBCAs applied at repeated doses played no role in myofibril damage induced by caspase-3 and calcineurin - nuclear factor of activated T-cells in skeletal muscle tissue.
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O-RADS Ultrasound Version 1: A Scenario-Based Review of Implementation Challenges. AJR Am J Roentgenol 2022; 219:916-927. [PMID: 35856453 DOI: 10.2214/ajr.22.28061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The Ovarian-Adnexal Reporting and Data System (O-RADS) ultrasound (US) risk stratification and management system was first published by the American College of Radiology in 2020. It provides standardized terminology for evaluation of ovarian and adnexal masses, aids risk stratification, and provides management guidelines for different categories of lesions. This system has been validated by subsequent research and found to be a useful diagnostic and management tool. However, as noted in the system's governing concepts, in some clinical scenarios, such as patients with acute symptoms or with a history of ovarian malignancy, O-RADS US does not apply, or the system's standard management may be adjusted. Additional scenarios, such as an adnexal mass in pregnancy, present challenges in the application of O-RADS US to assist diagnosis and management. The purpose of this article is to highlight 10 clinical scenarios in which O-RADS US version 1 may not apply, may be difficult to apply, or may require modified management. Additional scenarios in which O-RADS US can be appropriately applied are also described.
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Conde Vasco I, Martins Pereira G, Ferreira J, Cunha TM. Schwannoma mimicking ovarian malignancy. Radiol Case Rep 2022; 17:4308-4313. [PMID: 36132057 PMCID: PMC9483596 DOI: 10.1016/j.radcr.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 12/04/2022] Open
Abstract
In this article, we present a case of retroperitoneal schwannoma localized in the pelvic cavity mimicking ovarian carcinoma. A 60-year-old woman presented with a feeling of pelvic heaviness and dyspareunia for 3 months. On physical examination, a hardened mass is palpated on the cul-de-sac of Douglas, measuring approximately 10 cm. The sonographic study showed a retro-uterine solid mass, containing cystic areas, measuring 14 cm. Magnetic resonance imaging showed a solid left tumor in the small pelvis, posterior to the uterus, suspicious of an ovarian malign tumor. Surgery revealed a retroperitoneal pelvic tumor and uterus and adnexa without macroscopic changes. Pathology examination of the pelvic mass confirmed the diagnosis of schwannoma. In the present case, it is emphasized that it is easy to misdiagnose a pelvic mass as an ovarian tumor. While prompt recognition of ovarian cancer remains essential, awareness of processes that mimic ovarian tumors can avoid potential misdiagnosis. The pelvis has a complex anatomy and there are some imaging signs that help assessing the origin of a mass, especially in cases of masses abutting the ovary.
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Agirlar Trabzonlu T, Modak M, Horowitz JM. MR Imaging of Mimics of Adnexal Pathology. Magn Reson Imaging Clin N Am 2022; 31:137-148. [DOI: 10.1016/j.mric.2022.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Kawaguchi M, Kato H, Noda Y, Furui T, Morishige KI, Hyodo F, Matsuo M. Uterine extension determined by MRI: a useful parameter for differentiating subserosal leiomyomas from ovarian tumors. Abdom Radiol (NY) 2022; 47:1142-1149. [PMID: 34994842 DOI: 10.1007/s00261-021-03401-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/15/2022]
Abstract
PURPOSE This study aimed to evaluate the utility of uterine extension determined via MRI for the differentiation of large subserosal leiomyomas from ovarian tumors. METHODS In total, 55 patients with subserosal leiomyomas and 127 patients with ovarian tumors were included in this study. These patients were selected from a cohort of female patients whose pelvic masses were larger than 10 cm and who underwent preoperative MRI. We retrospectively reviewed the MRI and compared the diagnostic ability of uterine extension measurements and bridging vascular signs for differentiating subserosal leiomyomas from ovarian tumors. RESULTS The vertical height of the uterus (107.2 ± 36.4 mm vs. 59.9 ± 24.9 mm, p < 0.01), the uterine length (114.4 ± 34.9 mm vs. 80.4 ± 23.8 mm, p < 0.01), and the frequency of the bridging vascular sign (78% vs. 6%, p < 0.01) were significantly higher in subserosal leiomyomas than in ovarian tumors. For diagnosing subserosal leiomyoma, the area under the curve, sensitivity, and specificity of vertical height of the uterus, using cutoff threshold > 81 mm, were 0.89, 89%, and 80% and those of the uterine length, using cutoff threshold > 84 mm, were 0.85, 69%, and 93%, respectively. Alternatively, the sensitivity and specificity of bridging vascular sign were 78% and 94%, respectively. CONCLUSION Uterine extension determined via MRI is a useful parameter for differentiating large subserosal leiomyomas from ovarian tumors.
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Affiliation(s)
- Masaya Kawaguchi
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.
| | - Hiroki Kato
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Yoshifumi Noda
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Tatsuro Furui
- Department of Obstetrics and Gynecology, Gifu University, Gifu, Japan
| | | | - Fuminori Hyodo
- Department of Radiology, Frontier Science for Imaging, Gifu University, Gifu, Japan
| | - Masayuki Matsuo
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan
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18
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Elsherif SB, Agely A, Gopireddy DR, Ganeshan D, Hew KE, Sharma S, Lall C. Mimics and Pitfalls of Primary Ovarian Malignancy Imaging. Tomography 2022; 8:100-119. [PMID: 35076619 PMCID: PMC8788482 DOI: 10.3390/tomography8010009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 11/17/2022] Open
Abstract
The complex anatomy and similarity of imaging features of various pathologies in the pelvis can make accurate radiology interpretation difficult. While prompt recognition of ovarian cancer remains essential, awareness of processes that mimic ovarian tumors can avoid potential misdiagnosis and unnecessary surgery. This article details the female pelvic anatomy and highlights relevant imaging features that mimic extra-ovarian tumors, to help the radiologists accurately build a differential diagnosis of a lesion occupying the adnexa.
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Affiliation(s)
- Sherif B. Elsherif
- Department of Radiology, University of Florida College of Medicine—Jacksonville, Jacksonville, FL 32209, USA; (D.R.G.); (S.S.); (C.L.)
- Correspondence:
| | - Ali Agely
- Department of Radiology, Mayo Clinic Florida, Jacksonville, FL 32224, USA;
| | - Dheeraj R. Gopireddy
- Department of Radiology, University of Florida College of Medicine—Jacksonville, Jacksonville, FL 32209, USA; (D.R.G.); (S.S.); (C.L.)
| | | | - Karina E. Hew
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, University of Florida College of Medicine—Jacksonville, Jacksonville, FL 32209, USA;
| | - Smita Sharma
- Department of Radiology, University of Florida College of Medicine—Jacksonville, Jacksonville, FL 32209, USA; (D.R.G.); (S.S.); (C.L.)
| | - Chandana Lall
- Department of Radiology, University of Florida College of Medicine—Jacksonville, Jacksonville, FL 32209, USA; (D.R.G.); (S.S.); (C.L.)
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Fattahi N, Moeini A, Morani AC, Elsayes KM, Bhosale HR, Badawy M, Menias CO, Rezvani M, Gaballah AH, Shaaban AM. Fat-containing pelvic lesions in females. Abdom Radiol (NY) 2022; 47:362-377. [PMID: 34673996 DOI: 10.1007/s00261-021-03299-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 11/26/2022]
Abstract
Pelvic tumors are common in females and have a broad differential diagnosis. The clinical management of pelvic tumors varies widely-from observation to surgical resection-and imaging plays a pivotal role in diagnosis and clinical decision-making in these cases. In particular, imaging can help determine the organ of origin and tissue content of these tumors, which are the most important steps to narrowing the differential diagnosis. Fat has a characteristic appearance and is often easily identified on ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI). The amount and distribution of intralesional fat varies in different types of tumors. Macroscopic intralesional fat is often easily recognized by its hyperechoic appearance on US and low attenuation on CT similar to subcutaneous fat. On MRI, macroscopic fat is hyperintense on T1-weighted (T1W) images, with characteristic signal loss on fat-saturated sequences and India-ink artifact on opposed-phase T1W images. Macroscopic fat is the hallmark of teratomas, which are the most common ovarian neoplasms. Uterine lipoleiomyomas, peritoneal loose bodies, intraperitoneal and extraperitoneal primary lipomatous tumors such as lipoma and liposarcomas, and extra-adrenal myelolipomas are other pelvic masses distinguished by the presence of macroscopic fat. However, the imaging diagnosis of pelvic masses containing minimal or microscopic fat, such as immature ovarian teratomas, steroid cell ovarian neoplasms, and extramedullary hematopoiesis, can present a diagnostic challenge owing to their nonspecific appearance on US or CT. Obtaining MRI with in-phase and opposed-phase dual-echo T1W sequences and depicting chemical shift artifacts can be helpful in distinguishing these lesions.
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Affiliation(s)
- Nikoo Fattahi
- Department of Diagnostic and Interventional Imaging, The University of Texas John P. and Katherine G. McGovern Medical School, Houston, TX, USA
| | - Aida Moeini
- Department of Diagnostic Imaging, The University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - Ajaykumar C Morani
- Division of Diagnostic Imaging, Department of Abdominal Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Khaled M Elsayes
- Division of Diagnostic Imaging, Department of Abdominal Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA.
| | | | - Mohamed Badawy
- Division of Diagnostic Imaging, Department of Abdominal Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | | | - Maryam Rezvani
- Department of Diagnositc Imaging, The University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Ayman H Gaballah
- Department of Radiology, The University of Missouri Health Care, Columbia, MO, USA
| | - Akram M Shaaban
- Department of Diagnositc Imaging, The University of Utah School of Medicine, Salt Lake City, UT, USA
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Figueiredo G, O'Shea A, Neville GM, Lee SI. Rare Mesenchymal Tumors of the Pelvis: Imaging and Pathologic Correlation. Radiographics 2021; 42:143-158. [PMID: 34797733 DOI: 10.1148/rg.210049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Most pelvic tumors originate from the organs. Less commonly, tumors can arise from the various anatomic pelvic compartments and are comprised of mesenchymal tissue: muscles, connective tissue, vessels, lymphatics, and fat. Among some of the rarer entities are benign tumors (eg, angiomyxoma, cellular angiofibroma, and desmoid fibromatosis), malignant tumors (eg, sarcoma), and tumors that can manifest as benign or malignant (eg, solitary fibrous tumor or nerve sheath tumor). Because these tumors are uncommon and often manifest with nonspecific clinical features, imaging (usually MRI) is an initial step in the evaluation. Radiologists interpreting these images are asked to help narrow the differential diagnosis and assess the likelihood of malignancy for treatment planning. Thus, the MRI report should include the imaging features that would indicate the underlying tissue histology for pathologic diagnosis as well as a description of the anatomic extent and pattern of growth. The authors describe multiple locally aggressive benign and malignant mesenchymal tumors and highlight characteristic clinical and imaging features that enable the radiologist to narrow the differential diagnosis. The anatomic spaces of the pelvis are reviewed with illustrations to aid the radiologist in describing these tumors, which often span multiple pelvic compartments. Tumor appearance at T2-weighted, diffusion-weighted, and postcontrast MRI is summarized and illustrated with correlation at CT or fluorodeoxyglucose PET/CT, when available. MRI features that correspond to specific types of tissue (eg, myxoid, fibrous, or vascular) are highlighted and correlated with images from pathologic evaluation. Online supplemental material is available for this article. ©RSNA, 2021.
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Affiliation(s)
- Gabrielle Figueiredo
- From the Department of Radiology, Maisonneuve-Rosemont Hospital, Université de Montréal, 5415 Assumption Blvd, Montreal, QC, Canada H1T 2M4 (G.F.); Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Mass (A.O., S.I.L.); and Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (G.M.N.)
| | - Aileen O'Shea
- From the Department of Radiology, Maisonneuve-Rosemont Hospital, Université de Montréal, 5415 Assumption Blvd, Montreal, QC, Canada H1T 2M4 (G.F.); Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Mass (A.O., S.I.L.); and Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (G.M.N.)
| | - Grace Mary Neville
- From the Department of Radiology, Maisonneuve-Rosemont Hospital, Université de Montréal, 5415 Assumption Blvd, Montreal, QC, Canada H1T 2M4 (G.F.); Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Mass (A.O., S.I.L.); and Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (G.M.N.)
| | - Susanna I Lee
- From the Department of Radiology, Maisonneuve-Rosemont Hospital, Université de Montréal, 5415 Assumption Blvd, Montreal, QC, Canada H1T 2M4 (G.F.); Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Mass (A.O., S.I.L.); and Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (G.M.N.)
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21
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Causa Andrieu PI, Woo S, Rios-Doria E, Sonoda Y, Ghafoor S. The role of imaging in pelvic exenteration for gynecological cancers. Br J Radiol 2021; 94:20201460. [PMID: 33960814 DOI: 10.1259/bjr.20201460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Pelvic exenteration (PE) is one of the most challenging gynecologic oncologic surgeries and is an overriding term for different procedures that entail radical en bloc resection of the female reproductive organs and removal of additional adjacent affected pelvic organs (bladder, rectum, anus, etc.) with concomitant surgical reconstruction to restore bodily functions. Multimodality cross-sectional imaging with MRI, PET/CT, and CT plays an integral part in treatment decision-making, not only for the appropriate patient selection but also for surveillance after surgery. The purpose of this review is to provide a brief background on pelvic exenteration in gynecologic cancers and to familiarize the reader with the critical radiological aspects in the evaluation of patients for this complex procedure. The focus of this review will be on how imaging can aid in treatment planning and guide management.
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Affiliation(s)
| | - Sungmin Woo
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Eric Rios-Doria
- Department of Gynecological Surgery, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Yukio Sonoda
- Department of Gynecological Surgery, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Soleen Ghafoor
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Zurich, Switzerland
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22
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Noninvasive prediction of residual disease for advanced high-grade serous ovarian carcinoma by MRI-based radiomic-clinical nomogram. Eur Radiol 2021; 31:7855-7864. [PMID: 33864139 DOI: 10.1007/s00330-021-07902-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 02/13/2021] [Accepted: 03/16/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To develop a preoperative MRI-based radiomic-clinical nomogram for prediction of residual disease (RD) in patients with advanced high-grade serous ovarian carcinoma (HGSOC). METHODS In total, 217 patients with advanced HGSOC were enrolled from January 2014 to June 2019 and randomly divided into a training set (n = 160) and a validation set (n = 57). Finally, 841 radiomic features were extracted from each tumor on T2-weighted imaging (T2WI) and contrast-enhanced T1-weighted imaging (CE-T1WI) sequence, respectively. We used two fusion methods, the maximal volume of interest (MV) and the maximal feature value (MF), to fuse the radiomic features of bilateral tumors, so that patients with bilateral tumors have the same kind of radiomic features as patients with unilateral tumors. The radiomic signatures were constructed by using mRMR method and LASSO classifier. Multivariable logistic regression analysis was used to develop a radiomic-clinical nomogram incorporating radiomic signature and conventional clinico-radiological features. The performance of the nomogram was evaluated on the validation set. RESULTS In total, 342 tumors from 217 patients were analyzed in this study. The MF-based radiomic signature showed significantly better prediction performance than the MV-based radiomic signature (AUC = 0.744 vs. 0.650, p = 0.047). By incorporating clinico-radiological features and MF-based radiomic signature, radiomic-clinical nomogram showed favorable prediction ability with an AUC of 0.803 in the validation set, which was significantly higher than that of clinico-radiological signature and MF-based radiomic signature (AUC = 0.623, 0.744, respectively). CONCLUSIONS The proposed MRI-based radiomic-clinical nomogram provides a promising way to noninvasively predict the RD status. KEY POINTS • MRI-based radiomic-clinical nomogram is feasible to noninvasively predict residual disease in patients with advanced HGSOC. • The radiomic signature based on MF showed significantly better prediction performance than that based on MV. • The radiomic-clinical nomogram showed a favorable prediction ability with an AUC of 0.803.
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23
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Zhi M, Wang M, Li W, Ma L, Liu Q, Li Y, Lv Q. Reliability of the application of transvaginal color Doppler ultrasound in the identification of pelvic tumors in women of childbearing age. ANNALS OF TRANSLATIONAL MEDICINE 2021; 8:1662. [PMID: 33490174 PMCID: PMC7812216 DOI: 10.21037/atm-20-7406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Recently, transvaginal color Doppler ultrasound (TVCDU) has been widely used in the diagnosis of pelvic tumors. This study aimed to assess the reliability of the application of TVCDU in the identification of pelvic tumors in women of childbearing age. Methods The clinical data of 209 patients with pelvic tumors at childbearing age admitted to our hospital from January 2016 to December 2019 were retrospectively analyzed. The ultrasound signs, color Doppler ultrasound score (CDUS), and resistance index (RI) of benign and malignant pelvic tumors diagnosed by TVCDU were analyzed. The value of transabdominal color Doppler ultrasound (TACDU) and TVCDU in the diagnosis of benign and malignant pelvic tumors was calculated. Results There were 150 cases with benign pelvic tumors and 59 cases with malignant tumors. Most benign tumors had an intact capsule and regular shape, were mainly cystic, and were rarely accompanied by ascites; meanwhile, malignant tumors were mostly non-capsular and irregular in shape, mainly solid or cystic, and were often accompanied by ascites. There were significant differences in the above-mentioned ultrasound signs between benign and malignant tumors (P<0.05). The CDUS score of benign pelvic tumors was significantly lower than that of malignant tumors, and the RI value was significantly higher than that of the malignant tumors (P<0.05). The sensitivity, specificity, and accuracy of TACDU in the diagnosis of benign pelvic and malignant tumors were 83.33%, 84.75%, and 83.73%, respectively; and the sensitivity, specificity, and the accuracy of TVCDU in the diagnosis of benign pelvic and malignant tumors were 95.33%, 88.14%, and 93.30%, respectively; thus TVCDU had a superior performance compared to TACDU, especially in sensitivity and accuracy (P<0.05). Conclusions The sensitivity and accuracy of TVCDU in the differential diagnosis of benign pelvic and malignant tumors in women at childbearing age were significantly higher than those of TACDU. The combined application of CDUS and RI can further improve the accuracy in the diagnosis of pelvic tumors.
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Affiliation(s)
- Mingchun Zhi
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Miaoqian Wang
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Li
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Lijie Ma
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Qian Liu
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Ye Li
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Qiubo Lv
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
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24
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La vérité est ailleurs. IMAGERIE DE LA FEMME 2020. [DOI: 10.1016/j.femme.2020.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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