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Soti Khiabani M, Monajemzadeh M, Raji H, Zamani F, Vaseie M, Pak N. Pediatric Inflammatory Myofibroblastic Tumor of Rectosigmoid Junction: A Case Report and Review of the Literature. IRANIAN JOURNAL OF PATHOLOGY 2023; 19:132-136. [PMID: 38864087 PMCID: PMC11164313 DOI: 10.30699/ijp.2024.2003653.3122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/14/2023] [Indexed: 06/13/2024]
Abstract
The occurrence of rectosigmoid junction inflammatory myofibroblastic tumor (IMT) is uncommon in children. This is a rare form of mesenchymal tumor, belonging to the category of soft tissue tumors, and can be found at any anatomical site from the central nervous system to the gastrointestinal tract. Our patient was a 10-year-old male subject complaining of lack of defecation and constipation. The patient had decreased the frequency of defecation and constipation about two weeks before his referral and had not improved despite the use of laxatives. The abdomen was completely distended and there was no tenderness or guarding in the examination. Several airfluid levels are shown on the abdominal X-ray. In the ultrasound, free fluid was reported in the interlobular and pelvic spaces. The patient was transferred into the operating room. A tumor of the rectosigmoid junction was detected. Histopathologic studies showed evidence of IMT. IMT is a rare neoplasm of unknown origin, which may occur in various sites of the body. Complete surgical removal is usually curative, but early detection of recurrence is required. Treatment options include chemotherapy, radiation therapy, and immunotherapy. Further investigations are needed to improve the understanding and management of this rare tumor.
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Affiliation(s)
- Mahsa Soti Khiabani
- Children’s Medical Center, Pediatrics Center of Excellence, Tehran, Iran
- Department of Pediatric Emergency, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Monajemzadeh
- Department of Pathology, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
- Pediatric Gastroenterology and Hepatology Research Center, Pediatrics Centre of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hojatollah Raji
- Children’s Medical Center, Pediatrics Center of Excellence, Tehran, Iran
- Department of Pediatric Surgery, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Zamani
- Department of Radiology, Children Medical Center of Excellence, Tehran University of Medical Science, Tehran, Iran
- Advanced Diagnostic and Interventional Radiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Vaseie
- Emergency Medicine Department, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Pak
- Department of Radiology, Children Medical Centre of Excellence, Tehran University of Medical Sciences, Tehran, Iran
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Child inflammatory myofibroblastic tumor of the kidney misdiagnosed as Wilms' tumor: case report. Radiol Case Rep 2022; 17:4920-4923. [PMID: 36281280 PMCID: PMC9586852 DOI: 10.1016/j.radcr.2022.09.079] [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: 09/17/2022] [Accepted: 09/21/2022] [Indexed: 11/07/2022] Open
Abstract
Inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal tumor with recurrent potential, most commonly occurring in the lung but rarely in the kidney with nonspecific clinical symptoms and radiographic features, thus may be misdiagnosed as primary malignant lesions. We described a 6-year-old boy with renal IMT misdiagnosed as Wilms' tumor and then treated with right nephrectomy. It should be emphasized that in addition to the most common renal tumors in children, IMT should also be taken as a differential diagnosis. It is therefore mandatory to carry out clinical interpretation, careful histologic examination, and immunohistochemical studies collectively to make solid diagnosis.
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Mourão TC, Pascini CG, Novaes FC, Neto LW, Campos RSM. Ureteral Inflammatory Myofibroblastic Tumor as a Cause of Gross Hematuria in Adults. Urology 2022; 169:e1-e3. [PMID: 36055418 DOI: 10.1016/j.urology.2022.08.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/09/2022] [Accepted: 08/16/2022] [Indexed: 10/14/2022]
Affiliation(s)
- Thiago Camelo Mourão
- Hospital São Camilo - Unidade Pompeia. São Paulo, Brazil; Graduate School - Fundação Antônio Prudente, ACCamargo Cancer Center. São Paulo, Brazil.
| | | | | | | | - Rodrigo Sousa Madeira Campos
- Hospital São Camilo - Unidade Pompeia. São Paulo, Brazil; Department of Urology - ACCamargo Cancer Center. São Paulo, Brazil.
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WITHDRAWN: Child inflammatory myofibroblastic tumor of the kidney misdiagnosed as Wilms' tumor: Case report. Urol Case Rep 2022. [DOI: 10.1016/j.eucr.2022.102123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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