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Ischiorectal fossa: benign and malignant neoplasms of this "ignored" radiological anatomical space. Abdom Radiol (NY) 2019; 44:1644-1674. [PMID: 30955068 DOI: 10.1007/s00261-019-01930-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE To review the pertinent anatomy and the imaging features of common and uncommon benign and malignant neoplasms and masses of the ischiorectal fossa. RESULTS The ischiorectal or ischioanal fossa is the largest space in the anorectal region. The benign neoplasms that develop in the ischiorectal originate from the different components that forms the fossa including vascular tumors such as aggressive angiomyxoma or hemangioma; neural tumors as plexiform neurofibroma or schwannoma; fat tumors as lipoma; skin/skin appendages tumors as hidradenoma papilliferum; smooth or skeletal muscle tumors as solitary fibrous tumor. The malignant neoplasms that develop in the ischiorectal fossa also originate from different components that forms the fossa including vascular tumors such as angiosarcoma, neural tumors as malignant granular cell tumor and malignant peripheral nerve sheath tumor; fat tumors as liposarcoma; smooth or skeletal muscle tumors as leiomyosarcoma, rhabdomyosarcoma, malignant PEComa, or undifferentiated pleomorphic sarcoma. Additionally, the ischiorectal fossa can also harbor secondary hematogenous metastases and be affected by direct invasion from neoplasms of adjacent pelvic organs and structures. Furthermore, other miscellaneous masses can occur in the ischiorectal fossa including congenital and developmental lesions, and inflammatory and infectious processes. CONCLUSION Knowledge of the anatomy, and the spectrum of imaging findings of common and uncommon benign and malignant neoplasms of the ischiorectal fossa is crucial for the radiologists during interpretation of images allowing them to make contributions to the diagnosis and better patient management.
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Singh Z. Leiomyosarcoma: A rare soft tissue cancer arising from multiple organs. JOURNAL OF CANCER RESEARCH AND PRACTICE 2018. [DOI: 10.1016/j.jcrpr.2017.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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3
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Sahli N, Khmou M, Khalil J, Elmajjaoui S, El Khannoussi B, Kebdani T, Elkacemi H, Benjaafar N. Unusual evolution of leiomyosarcoma of the rectum: a case report and review of the literature. J Med Case Rep 2016; 10:249. [PMID: 27633779 PMCID: PMC5025574 DOI: 10.1186/s13256-016-1047-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 08/29/2016] [Indexed: 01/01/2023] Open
Abstract
Background Leiomyosarcoma of the rectum is a rare entity that comprises less than 0.1 % of all rectal malignancies. Given the uncommon nature of this tumor and the controversy about its treatment we report one case and review the literature in an attempt to report a particular evolution and to discuss the most appropriate treatment. Case presentation This case report describes the presentation of leiomyosarcoma of the rectum. A 30-year-old man from the north of Morocco presented with rectorrhagia and constipation. On physical examination we found a mass in his rectum approximately 6 cm from his anal margin. Pelvic magnetic resonance imaging showed a rectal mass with a parietal attachment that invaded the fascia and his perirectal tissue. Before any treatment he defecated spontaneously the tumor. On histopathological examination a diagnosis of leiomyosarcoma was made. An anterior resection of his rectum was performed with adjuvant radiotherapy at a dose of 50 Gy. After 1 year of surveillance, he has not presented any clinical symptoms and pelvic magnetic resonance imaging was normal. Unfortunately, histological analysis of a superficial biopsy of a rectal leiomyosarcoma may not be reflective of the entire tumor mass, and a diagnosis is based essentially on postoperative pathological examination. The optimal treatment modality in patients with rectal leiomyosarcomas is controversial. Prognosis is also poor; tumor size, histological grade, mitotic index, and local staging are the most known prognosis factors. Conclusion The prognosis of rectal leiomyosarcoma is poor; more investigations are necessary to understand the progression of these tumors and to define an optimal treatment modality.
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Affiliation(s)
- N Sahli
- Department of Radiotherapy, National Institute of Oncology, University Mohammed V, Rabat, Morocco.
| | - M Khmou
- Department of Pathology, National Institute of Oncology, University Mohammed V, Rabat, Morocco
| | - J Khalil
- Department of Radiotherapy, National Institute of Oncology, University Mohammed V, Rabat, Morocco
| | - S Elmajjaoui
- Department of Radiotherapy, National Institute of Oncology, University Mohammed V, Rabat, Morocco
| | - B El Khannoussi
- Department of Pathology, National Institute of Oncology, University Mohammed V, Rabat, Morocco
| | - T Kebdani
- Department of Radiotherapy, National Institute of Oncology, University Mohammed V, Rabat, Morocco
| | - H Elkacemi
- Department of Radiotherapy, National Institute of Oncology, University Mohammed V, Rabat, Morocco
| | - N Benjaafar
- Department of Radiotherapy, National Institute of Oncology, University Mohammed V, Rabat, Morocco
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Mehta N, Konarski A, Rooney P, Chandrasekar C. Leiomyosarcoma of the ischiorectal fossa: report of a novel sphincter and sciatic nerve sparing simultaneous trans-abdominal and trans-gluteal resection and review of the literature. J Surg Case Rep 2015; 2015:rjv016. [PMID: 25759172 PMCID: PMC4354263 DOI: 10.1093/jscr/rjv016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Leiomyosarcomas are rare tumours of smooth muscle origin, and there have been no reported cases of such tumours arising within the ischiorectal fossa. Surgical resection with clear margins remains the gold standard treatment; however, there is limited literature on surgical approaches to the ischiorectal fossa for such tumours. We report a case of a high-grade leiomyosarcoma in a 59-year-old lady, occurring within the ischiorectal fossa that was managed using a novel simultaneous sphincter and sciatic nerve preserving trans-abdominal and trans-gluteal technique. This novel approach could be utilized not only for sarcomas but also for other tumours of the ischiorectal fossa extending into the gluteal region.
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Affiliation(s)
- Nisarg Mehta
- Royal Liverpool & Broadgreen University Hospital, Prescot Street, Merseyside, Liverpool L7 8XP, UK
| | - Alastair Konarski
- Royal Liverpool & Broadgreen University Hospital, Prescot Street, Merseyside, Liverpool L7 8XP, UK
| | - Paul Rooney
- Royal Liverpool & Broadgreen University Hospital, Prescot Street, Merseyside, Liverpool L7 8XP, UK
| | - Coonoor Chandrasekar
- Royal Liverpool & Broadgreen University Hospital, Prescot Street, Merseyside, Liverpool L7 8XP, UK
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Nassif MO, Trabulsi NH, Bullard Dunn KM, Nahal A, Meguerditchian AN. Soft tissue tumors of the anorectum: rare, complex and misunderstood. J Gastrointest Oncol 2013; 4:82-94. [PMID: 23450454 DOI: 10.3978/j.issn.2078-6891.2012.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 08/27/2012] [Indexed: 12/28/2022] Open
Abstract
Anorectal soft tissue tumors are uncommon and often present both diagnostic and therapeutic challenges. Although many of these tumors are identified with imaging performed for unrelated reasons, most present with nonspecific symptoms that can lead to a delay in diagnosis. Historically, radical surgery (abdominoperineal resection) has been the mainstay of treatment for both benign and malignant anorectal soft tissue tumors. However, a lack of proven benefit in benign disease along with changes in technology has called this practice into question. In addition, the role of radiation and/or chemotherapy remains controversial. In this manuscript, we review the history and current status of anorectal soft tissue tumor management, with a particular focus on challenges in optimizing survival.
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Affiliation(s)
- Mohammed O Nassif
- Division of Experimental Surgery, McGill University, 845 Sherbrooke Street West Montreal, Quebec, Canada H3A 2T5; ; Department of Surgery, King Abdulaziz University, P.O. Box 80205, Zip Code 21589, Jeddah, Saudi Arabia
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6
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Hsieh TH, Clark BD, Iswara K. Rectal leiomyosarcoma: an unusual rectal malignancy mimicking fecal impaction in a 19-year-old man. Clin Gastroenterol Hepatol 2009; 7:A18. [PMID: 18304888 DOI: 10.1016/j.cgh.2007.12.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ting-Hui Hsieh
- Department of Medicine, Maimonides Medical Center, Brooklyn, New York, USA
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7
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Vega Menéndez D, Quintáns Rodríguez A, Hernández Granados P, Nevado Santos M, García Sabrido JL, Rueda Orgaz JA, Ochando F, Ojeda Pérez F, Loinaz C. Hamartomas quísticos retrorrectales. Cir Esp 2008; 83:53-60. [DOI: 10.1016/s0009-739x(08)70506-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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8
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Thalheimer L, Richmond B, Lohan J. Leiomyosarcoma of the Anal Canal: Case Report and Review of the Literature. Am Surg 2008. [DOI: 10.1177/000313480807400118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A rare case of a leiomyosarcoma of the anal canal is presented. A 68-year-old male presented with painful defecation and rectal bleeding. Endorectal ultrasound revealed a mass invading both sphincters (T4 lesion), and extending 6 cm into the anal canal. Colonoscopy revealed an ulcerated area in the anal canal, of which biopsies revealed high-grade leiomyosarcoma–only the eighteenth such case at the time of this submission. The details of the case and teaching images are presented in detail, as is a comprehensive review of the relevant literature.
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Affiliation(s)
- Liza Thalheimer
- West Virginia University School of Medicine, Morgantown, West Virginia and
| | - Bryan Richmond
- Department of Surgery, West Virginia University, Charleston Division, Charleston, West Virginia
| | - Jay Lohan
- Department of Surgery, West Virginia University, Charleston Division, Charleston, West Virginia
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9
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Cuffy M, Abir F, Longo WE. Management of Less Common Tumors of the Colon, Rectum, and Anus. Clin Colorectal Cancer 2006; 5:327-37. [PMID: 16512991 DOI: 10.3816/ccc.2006.n.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The majority of colorectal and anal malignancies are adenocarcinomas and squamous cell cancers, respectively. Despite the predominance of these neoplasms in these locations, rare histiotypes of the colon, rectum, and anus do occur. These histotypes include but are not limited to lymphoma, melanoma, diffuse cavernous hemangioma, and sarcomas, such as leiomyosarcoma or Kaposi's sarcoma. These tumors often present challenges to clinicians with respect to diagnosis, staging, management, and pathology because of their unfamiliarity. A Medline search using "colon," "rectum,""anus," "lymphoma," "melanoma," "diffuse cavernous hemangioma," "squamous cell carcinoma," "carcinoid," "sarcoma," "leiomyosarcoma," "Kaposi's sarcoma," "Paget's disease," "Bowen's disease," and "basal cell carcinoma" as key words was performed as well as a cross-referencing of the bibliography cited in each work. Rare tumors of the colon, rectum, and anus present diagnostic and management dilemmas for clinicians. Because of their infrequency and poor prognosis, the optimal management of these tumors is controversial. For some histotypes, such as squamous cell carcinoma and carcinoids of the rectum, treatment depends on location and size of the tumor. For uncommon anal lesions, such as Bowen's disease, Paget's disease, and basal cell carcinoma, wide local excision (WLE) with negative margins is the standard of care. For other lesions such as anorectal melanoma or leiomyosarcoma, abdominal perineal resection versus WLE is still being debated. Because the optimal treatment of these tumors is still unclear, we recommend a multidisciplinary approach including a surgeon, primary care physician, medical oncologist, radiation oncologist, and pathologist to offer the patient the best outcome.
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Affiliation(s)
- Madison Cuffy
- Yale University School of Medicine, Department of Surgery, New Haven, CT 06520-8062, USA
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Campos FG, Leite AF, Araújo SEA, Atuí FC, Seid V, Habr-Gama A, Kiss DR, Gama-Rodrigues J. Anorectal leiomyomas: report of two cases with different anatomical patterns and literature review. ACTA ACUST UNITED AC 2004; 59:296-301. [PMID: 15543403 DOI: 10.1590/s0041-87812004000500013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Gastrointestinal mesenchymal tumors comprise a rare group of gastrointestinal tract wall tumors that have long been a source of confusion and controversy, especially in terms of pathological classification, preoperative diagnosis, management strategies, and prognosis. This report describes the clinical manifestations and management of 2 rectal leiomyomas and reviews the pertinent literature. Case 1: A 44-year-old woman was admitted reporting a nodule in the right para-anal region for the previous 2 years. At proctological examination, a 4-cm diameter fibrous mass situated in the para-anal region that produced an arch under the smooth muscle on the right rectal wall just above the anorectal ring was noted. Computed tomography and magnetic resonance imaging of the abdomen and pelvis showed the lesion and detected no other abnormalities. Surgical treatment consisted of wide local resection of the tumor through a para-anal incision, with no attempts to perform lymphadenectomy. Case 2: A 40-year-old male patient was admitted reporting constant anal pain for 4 months. He presented a 3-cm submucosal nodule at the anterior rectal wall just above the dentate line. After 2 inconclusive preoperative biopsies, transanal resection of the tumor was performed. Histological analysis of the specimen showed a benign leiomyoma. A review of the literature is presented, emphasizing some clinical and therapeutic aspects of this unusual rectal tumor.
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Affiliation(s)
- Fábio Guilherme Campos
- Department of Gastroenterology, Coloproctology Unit, Hospital das Clínicas, Faculty of Medicine, University of São Paulo - São Paulo/SP, Brazil.
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11
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Viale PH. Large hyperpigmented perianal tumor. Clin J Oncol Nurs 2002; 6:116-7, 120. [PMID: 11889676 DOI: 10.1188/02.cjon.116-117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Anorectal melanomas are rare tumors that occur more frequently with advancing age and peak in the sixth and seventh decades (Felz et al., 2001). Surgery is considered to be optimal therapy; however, chemotherapy and immunotherapy have been shown to be effective in a small number of patients.
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Dahan H, Arrivé L, Wendum D, Docou le Pointe H, Djouhri H, Tubiana JM. Retrorectal developmental cysts in adults: clinical and radiologic-histopathologic review, differential diagnosis, and treatment. Radiographics 2001; 21:575-84. [PMID: 11353107 DOI: 10.1148/radiographics.21.3.g01ma13575] [Citation(s) in RCA: 143] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Developmental cysts are the most common retrorectal cystic lesions in adults, occurring mostly in middle-aged women. They are classified as epidermoid cysts, dermoid cysts, enteric cysts (tailgut cysts and cystic rectal duplication), and neurenteric cysts according to their origin and histopathologic features. Although developmental cysts are often asymptomatic, patients may present with symptoms resulting from local mass effect (eg, constipation, rectal fullness, lower abdominal pain, dysuria), with a palpable retrorectal mass at digital rectal examination, or with a complication. Infection with fistulization, bleeding, and malignant degeneration are the major complications of developmental cysts. A well-defined, unilocular or multilocular, thin-walled cystic lesion is the main imaging feature. Uncommonly, a sacral bone defect and calcifications are associated with developmental cysts. The differential diagnosis includes cystic sacrococcygeal teratoma, anterior sacral meningocele, anal duct or gland cyst, necrotic rectal leiomyosarcoma, extraperitoneal adenomucinosis, cystic lymphangioma, pyogenic abscess, neurogenic cyst, and necrotic sacral chordoma. Complete surgical excision is indicated to establish the diagnosis and avoid complications.
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Affiliation(s)
- H Dahan
- Department of Radiology, Hôpital Saint-Antoine, 184 Rue du Faubourg Saint-Antoine, 75571 Paris Cedex 12, France.
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