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Aggarwal P, Malik R, Sarawagi R, Kumar A, Sharma J. Diffusion-Weighted MRI in Perianal Abscess: Role and Comparison With Contrast-Enhanced MRI. Cureus 2024; 16:e59035. [PMID: 38800169 PMCID: PMC11128151 DOI: 10.7759/cureus.59035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Perianal abscess is a clinical infective and/or inflammatory collection in the perianal region, one entity of a large group of anal and perianal disorders. Perianal abscesses are often seen as a complication of grade 2 and grade 4 perianal fistulas from St. James's University Hospital classification. Several imaging modalities have been tried in the past for adequate assessment of perianal abscess with contrast-enhanced magnetic resonance imaging (CE-MRI) providing the most accurate results. Diffusion-weighted imaging (DWI) is an emerging sequence that can provide comparable results to CE-MRI in diagnosing and characterizing perianal abscess. The main objective of this study is to assess the role of DWI in adequate identification and assessment of perianal abscess and compare the final results with contrast-enhanced images. METHODS Twenty patients with complicated perianal fistula with clinically suspected perianal abscess were evaluated with DWI and CE-MRI. This study was a comparative cross-sectional study conducted in the Department of Radiodiagnosis and Imaging, All India Institute of Medical Sciences, Bhopal, India. Chi-square test was done to find the association between categorical variables. Kappa test was used to find the agreement between two different tests. Receiver operating characteristics (ROC) analysis was done to estimate the area under the curve in predicting the outcome. Sensitivity, specificity, positive predictive value, negative predictive value and accuracy were used to measure the validity of the tests. RESULTS DWI is a very sensitive MRI sequence and is equivalent to CE-MRI to detect the location and analyzing the loco-regional extent of abscess in complicated perianal fistula cases. DWI is also very sensitive and superior to T2 short tau inversion recovery (STIR) in differentiating perianal abscess from perianal inflammation without abscess. CONCLUSION DWI can be used as an alternative to post-contrast fat-suppressed MRI in precisely defining the location and extent of anal and perianal abscesses and disease activity in complicated fistula cases.
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Affiliation(s)
- Pooja Aggarwal
- Radiology, All India Institute of Medical Sciences, Bhopal, IND
| | - Rajesh Malik
- Radiology, All India Institute of Medical Sciences, Bhopal, IND
| | - Radha Sarawagi
- Radiology, All India Institute of Medical Sciences, Bhopal, IND
| | - Aman Kumar
- Radiology, All India Institute of Medical Sciences, Bhopal, IND
| | - Jitendra Sharma
- Radiology, All India Institute of Medical Sciences, Bhopal, IND
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Tarasconi A, Perrone G, Davies J, Coimbra R, Moore E, Azzaroli F, Abongwa H, De Simone B, Gallo G, Rossi G, Abu-Zidan F, Agnoletti V, de'Angelis G, de'Angelis N, Ansaloni L, Baiocchi GL, Carcoforo P, Ceresoli M, Chichom-Mefire A, Di Saverio S, Gaiani F, Giuffrida M, Hecker A, Inaba K, Kelly M, Kirkpatrick A, Kluger Y, Leppäniemi A, Litvin A, Ordoñez C, Pattonieri V, Peitzman A, Pikoulis M, Sakakushev B, Sartelli M, Shelat V, Tan E, Testini M, Velmahos G, Wani I, Weber D, Biffl W, Coccolini F, Catena F. Anorectal emergencies: WSES-AAST guidelines. World J Emerg Surg 2021; 16:48. [PMID: 34530908 PMCID: PMC8447593 DOI: 10.1186/s13017-021-00384-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 07/16/2021] [Indexed: 02/06/2023] Open
Abstract
Anorectal emergencies comprise a wide variety of diseases that share common symptoms, i.e., anorectal pain or bleeding and might require immediate management. While most of the underlying conditions do not need inpatient management, some of them could be life-threatening and need prompt recognition and treatment. It is well known that an incorrect diagnosis is frequent for anorectal diseases and that a delayed diagnosis is related to an impaired outcome. This paper aims to improve the knowledge and the awareness on this specific topic and to provide a useful tool for every physician dealing with anorectal emergencies.The present guidelines have been developed according to the GRADE methodology. To create these guidelines, a panel of experts was designed and charged by the boards of the World Society of Emergency Surgery (WSES) and American Association for the Surgery of Trauma (AAST) to perform a systematic review of the available literature and to provide evidence-based statements with immediate practical application. All the statements were presented and discussed during the WSES-AAST-WJES Consensus Conference on Anorectal Emergencies, and for each statement, a consensus among the WSES-AAST panel of experts was reached. We structured our work into seven main topics to cover the entire management of patients with anorectal emergencies and to provide an up-to-date, easy-to-use tool that can help physicians and surgeons during the decision-making process.
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Affiliation(s)
- Antonio Tarasconi
- Emergency Surgery Department, Parma University Hospital, Parma, Italy.
| | - Gennaro Perrone
- Emergency Surgery Department, Parma University Hospital, Parma, Italy
| | - Justin Davies
- Cambridge Colorectal Unit, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Raul Coimbra
- Riverside University Health System Medical Center, Loma Linda University School of Medicine, Riverside, CA, USA
| | - Ernest Moore
- Ernest E. Moore Shock Trauma Center at Denver Health, Denver, CO, USA
| | - Francesco Azzaroli
- Gastroenterology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Hariscine Abongwa
- Emergency Surgery Department, Parma University Hospital, Parma, Italy
| | - Belinda De Simone
- Department of Metabolic, Digestive and Emergency Surgery, Centre Hospitalier Intercommunal de Poissy et Saint Germain en Laye, Poissy, France
| | - Gaetano Gallo
- Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
| | - Giorgio Rossi
- Emergency Surgery Department, Parma University Hospital, Parma, Italy
| | - Fikri Abu-Zidan
- Department of Surgery, College of Medicine and Health Sciences, UAE University, Al-Ain, United Arab Emirates
| | - Vanni Agnoletti
- Anesthesia and Intensive Care Unit, AUSL Romagna, M.Bufalini Hospital, Cesena, Italy
| | - Gianluigi de'Angelis
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Gastroenterology and Endoscopy Unit, Hospital of Parma, Parma, Italy
| | - Nicola de'Angelis
- Minimally Invasive and Robotic Digestive Surgery Unit, Regional General Hospital F. Miulli, Bari, Ital - Université Paris Est, UPEC, Creteil, France
| | - Luca Ansaloni
- Department of Emergency and general Surgery, Pavia University Hospital, Pavia, Italy
| | - Gian Luca Baiocchi
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Paolo Carcoforo
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Marco Ceresoli
- General Surgery, Monza University Hospital, Monza, Italy
| | - Alain Chichom-Mefire
- Faculty of Health Sciences, Department of Surgery, University of Buea, Buea, Cameroon
| | - Salomone Di Saverio
- General surgery 1st unit, Department of General Surgery, University of Insubria, Varese, Italy
| | - Federica Gaiani
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Gastroenterology and Endoscopy Unit, Hospital of Parma, Parma, Italy
| | - Mario Giuffrida
- Department of Medicine and Surgery, General Surgery Unit, University Hospital of Parma, Parma, Italy
| | - Andreas Hecker
- Department of General & Thoracic Surgery, University Hospital of Giessen, Giessen, Germany
| | - Kenji Inaba
- Division of Acute Care Surgery, University of Southern California, Los Angeles, CA, USA
| | - Michael Kelly
- Department of General Surgery, Albury Hospital, Albury, Australia
| | - Andrew Kirkpatrick
- General, Acute Care, Abdominal Wall Reconstruction, and Trauma Surgery, Foothills Medical Centre, Calgary, Alberta, Canada
| | - Yoram Kluger
- Division of General Surgery, Rambam Health Care Campus, Haifa, Israel
| | | | - Andrey Litvin
- Department of Surgical Disciplines, Regional Clinical Hospital, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Carlos Ordoñez
- Department of Surgery, Fundacion Valle del Lili - Universidad del Valle, Cali, Colombia
| | | | - Andrew Peitzman
- University of Pittsburgh School of Medicine, UPMC-Presbyterian, Pittsburgh, PA, USA
| | - Manos Pikoulis
- 3rd Department of Surgery, National & Kapodistrian University of Athens, Athens, Greece
| | - Boris Sakakushev
- General Surgery Department, University Hospital St George, Plovdiv, Bulgaria
| | | | - Vishal Shelat
- Department of Surgery, Tan Tock Seng Hospital, Singapore, Singapore
| | - Edward Tan
- Department of Surgery, Department of Emergency Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Mario Testini
- Academic Unit of General Surgery "V. Bonomo" Department of Biomedical Sciences and Human Oncology, University of Bari, Bari, Italy
| | - George Velmahos
- Division of Trauma, Emergency Surgery, and Surgical Critical Care, Massachusetts General Hospital, Boston, MA, USA
| | - Imtiaz Wani
- Government Gousia Hospital, Srinagar, Kashmir, India
| | - Dieter Weber
- Department of General Surgery, Royal Perth Hospital, University of Western Australia, Perth, Australia
| | - Walter Biffl
- Department of Trauma and Acute Care Surgery, Scripps Memorial Hospital La Jolla, La Jolla, San Diego, CA, USA
| | - Federico Coccolini
- General, Emergency and Trauma Surgery Department, Pisa University Hospital, Pisa, Italy
| | - Fausto Catena
- General, Emergency and Trauma Surgery Dept., Bufalini Hospital, Cesena, Italy
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Al Mulhim AA, Schulwolf SL, McFadden KM, Shokoohi H. Transperineal Ultrasound in the Diagnosis of Proctitis in the Emergency Department. J Emerg Med 2021; 60:e119-e124. [PMID: 33422374 DOI: 10.1016/j.jemermed.2020.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 11/10/2020] [Accepted: 11/22/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Patients with anorectal complaints commonly present to the emergency department (ED). In patients with prior history of pelvic radiation and those with risk factors for sexually transmitted infections, proctitis is frequently on the differential diagnosis. Computed tomography (CT) scans are frequently done in patients with atypical presentations and those with broader differential diagnoses. Although in cases with suspected uncomplicated proctitis, conducting a point-of-care transperineal ultrasound (TPUS) may provide sufficient data to confirm the diagnosis and ascertain a safe plan for outpatient management, thus limiting the need for CT scan, a frequent flow-limiting step in the ED. CASE REPORT In this article, we present a brief case series of patients presenting to the ED with anorectal complaints in whom TPUS revealed circumferential symmetric rectal wall edema and pericolonic stranding suggestive of proctitis. History and subsequent imaging further supported these diagnoses; we also briefly detail the patients' clinical course and outcomes. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: We propose the use of TPUS as the screening imaging for anorectal pathologies and those with suspected proctitis to increase its use among emergency physicians. We review the main sonographic features of proctitis alongside reports from clinical cases, as well as the potential advantages of TPUS as a first-line imaging modality as compared with CT or magnetic resonance imaging. Although the complexities of anorectal anatomy can make TPUS a more difficult ultrasound modality to master, integrating TPUS into clinical practice will prove beneficial to both physician and patient.
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Affiliation(s)
- Abdullah A Al Mulhim
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; Center for Ultrasound Research and Education (CURE) at Massachusetts General Hospital, Boston, Massachusetts; Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sara L Schulwolf
- Center for Ultrasound Research and Education (CURE) at Massachusetts General Hospital, Boston, Massachusetts
| | - Kathleen M McFadden
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; Center for Ultrasound Research and Education (CURE) at Massachusetts General Hospital, Boston, Massachusetts; Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Hamid Shokoohi
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; Center for Ultrasound Research and Education (CURE) at Massachusetts General Hospital, Boston, Massachusetts
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