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Pulvers JN, Roberts ST, Wignall A, Chan RCF, Muljono A, Toon CW. A rare case of high grade myxoinflammatory fibroblastic sarcoma of the neck with PRAME immuno-expression: a potential pitfall. Pathology 2021; 54:486-488. [PMID: 34711412 DOI: 10.1016/j.pathol.2021.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/25/2021] [Indexed: 11/16/2022]
Affiliation(s)
- Jeremy N Pulvers
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Samuel T Roberts
- Department of Otolaryngology, Head and Neck Surgery, Royal North Shore Hospital, Sydney, NSW, Australia; University of Newcastle, Callaghan, NSW, Australia
| | - Andrew Wignall
- Department of Otolaryngology, Head and Neck Surgery, Royal North Shore Hospital, Sydney, NSW, Australia
| | - Renee C F Chan
- Department of Anatomical Pathology, Electron Microscopy Unit, Concord Repatriation General Hospital, Sydney, NSW, Australia
| | - Anita Muljono
- Histopathology Department, Douglass Hanly Moir Pathology, Macquarie Park, NSW, Australia
| | - Christopher W Toon
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, NSW, Australia.
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Numminen J, Bizaki A, Kujansivu J, Huovinen S, Rautiainen M. Myxoinflammatory fibroblastic sarcoma of the nose: First reported case at an unusual location (nasal dorsum), with a review of the literature. EAR, NOSE & THROAT JOURNAL 2017; 95:E32-5. [PMID: 26991227 DOI: 10.1177/014556131609500304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare, low-grade, malignant, soft-tissue tumor that typically affects the distal extremities of middle-aged patients. In most cases, it presents as a painless, slowly growing mass within the subcutaneous tissue. It is associated with a low rate of metastasis but a high rate of local recurrence. In addition to the distal extremities, MIFS has been reported in the thigh, arm, forearm, groin, upper back, neck, and temporal area. As far as we know, no case has been previously reported in the nasal area. We report for the first time a case of MIFS presenting on the dorsum of the nose. The painless, 3.0-cm tumor was initially mistaken for reticular erythematous mucinosis, a benign skin condition that occurs when fibroblasts produce abnormally large amounts of mucopolysaccharides. The tumor was surgically removed in its entirety with surgical margins of 3 to 5 mm. During 4 years of follow-up, no clinical or radiologic evidence of a recurrence or metastasis was seen. We discuss the imaging and histologic features of MIFS, as well as its clinical management and follow-up, and we review related reports in the literature.
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Affiliation(s)
- Jura Numminen
- Department of Ear and Oral Diseases, Tampere University Hospital, PO Box 2000, 33 521 Tampere, Finland.
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Vroobel K, Miah A, Fisher C, Thway K. Myxoinflammatory fibroblastic sarcoma of the scalp: aggressive behavior at a rare, nonextremity site. Int J Surg Pathol 2015; 23:292-7. [PMID: 25673633 DOI: 10.1177/1066896915571452] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare low-grade malignant soft tissue neoplasm, which usually presents on the distal extremities of adults and sometimes children. It has a characteristic appearance, of a lobulated or multinodular neoplasm of moderately atypical epithelioid or spindled cells, vacuolated cells, and enlarged or bizarre cells with macronuclei, with prominent mixed inflammatory infiltrate, and variably myxoid stroma. However, the proportions of each component vary, making diagnosis difficult, particularly when tumors arise at unusual nonextremity sites. We describe a case of MIFS occurring as a primary neoplasm on the scalp of an 80-year-old male, which recurred locally after 2 years and developed extensive bilateral cervical lymph node metastases. MIFS is exceptionally rare in the head and neck, and it has been described only once on the scalp. This case showed classical histologic features, and additionally a high mitotic index and atypical mitoses, which may be suggestive of a poorer prognosis. This case highlights the need to consider MIFS in the differential diagnoses of pleomorphic tumors of the head and neck, and it adds to the small number of MIFS showing highly aggressive behavior.
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Laskin WB, Fetsch JF, Miettinen M. Myxoinflammatory fibroblastic sarcoma: a clinicopathologic analysis of 104 cases, with emphasis on predictors of outcome. Am J Surg Pathol 2014; 38:1-12. [PMID: 24121178 PMCID: PMC7670880 DOI: 10.1097/pas.0b013e31829f3d85] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this study, we examine the clinicopathologic features of 104 cases of myxoinflammatory fibroblastic sarcoma (MIFS), a low-grade, inflammatory fibromyxoid tumor with a predilection to distal extremity soft tissue, and attempt to identify factors predictive of aggressive behavior. The study cohort consisted of 49 male and 55 female patients ranging in age from 17 to 83 (mean, 42; median, 39) years. The tumor arose primarily on the dorsal aspect of the distal extremities as a solitary and usually painless mass. Tumors ranged in size from 0.5 to 15 (mean, 3.2; median; 2.4) cm. Microscopically, tumors consisted of variably cellular and inflamed fibromyxoid tissue growing as a lobulated mass or as multiple nodules within subcutaneous tissue or along tendinofascial planes. Tumor cells ranged from plump spindled to more epithelioid cells with enlarged, vesicular nuclei. Characteristic of the process was a strikingly bizarre cell with an inclusion body-like nucleolus (85% of cases) and/or a smudgy hyperchromatic nucleus (51%) present in all but 7 cases. The mitotic rate per 50 high-power field ranged from 0 to 13 (mean, 2,9; median, 2) mitoses. Twenty-two tumors demonstrated 1 or more of the following atypical features: (1) foci with complex sarcoma-like vasculature; (2) hypercellular areas; and (3) increased mitotic activity or atypical mitotic figures. Immunohistochemically, tumor cells demonstrated immunoreactivity for vimentin (100%), D2-40 (86%), CD34 (50%), keratin(s) (33%), CD68 (27%), actin(s) (26%), desmin (9%), S-100 protein (7%), and epithelial membrane antigen (6%). Thirty of 59 patients (51%) with follow-up data suffered (at least) 1 local recurrence, and 1 patient developed metastatic disease after multiple local recurrences. Completeness of initial surgical excision was the only clinicopathologic parameter that statistically correlated with a lower incidence of recurrence (P=0.004). Histologically atypical MIFS recurred more often than conventional tumors (67% vs. 47%), but the difference was not statistically significant (P=0.35). Our study shows that histologic features often associated with more aggressive sarcomas do not substantially impact the morbidity of MIFS, and complete surgical excision provides the best chance for disease-free survival.
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Affiliation(s)
- William B. Laskin
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - John F. Fetsch
- Department of Soft Tissue Pathology, Joint Pathology Center, Silver Spring
| | - Markku Miettinen
- Laboratory of Pathology, National Institutes of Health/National Cancer Institute, Bethesda, MD
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Weiss VL, Antonescu CR, Alaggio R, Cates JM, Gaskin D, Stefanovici C, Coffin CM. Myxoinflammatory fibroblastic sarcoma in children and adolescents: clinicopathologic aspects of a rare neoplasm. Pediatr Dev Pathol 2013; 16:425-31. [PMID: 23919754 DOI: 10.2350/13-06-1353-cr.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Myxoinflammatory fibroblastic sarcoma (MIFS), originally described as a low-grade malignant soft-tissue tumor in adults, has recently been reported in children and in non-acral sites. This report describes the clinicopathologic features of a series of 5 MIFS in children and adolescents (3 males, 2 females), ranging in age from 5 to 17 years (mean, 13 years). These tumors presented as small, superficial, slowly growing soft-tissues masses of the scalp, neck, middle finger, forearm, and thigh. Histologically, the tumors were composed of spindled and plump polygonal cells with prominent nuclear pleomorphism, nuclear pseudoinclusions; large eosinophilic nucleoli; myxoid foci intermingled with spindled foci; and an accompanying inflammatory infiltrate of lymphocytes, plasma cells, and variable neutrophils. Immunohistochemical analysis revealed variable reactivity for CD34 and smooth muscle actin in the tumor cells. Genetic analysis in 3 cases showed no rearrangements of TGFBR3 or MGEA5. Follow up in 4 cases revealed no recurrence or metastasis. These 5 cases of childhood and adolescent MIFS demonstrate an expanded age range and topographic distribution and a favorable outcome. The differential diagnosis and importance of recognizing this rare neoplasm in young patients are discussed.
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Affiliation(s)
- Vivian L Weiss
- 1 Department of Pathology, Microbiology, and Immunology, Vanderbilt University, Nashville, TN, USA
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Lombardi R, Jovine E, Zanini N, Salone MC, Gambarotti M, Righi A, Balladelli A, Colangeli M, Rocca M. A case of lung metastasis in myxoinflammatory fibroblastic sarcoma: analytical review of one hundred and thirty eight cases. INTERNATIONAL ORTHOPAEDICS 2013; 37:2429-36. [PMID: 24158237 DOI: 10.1007/s00264-013-2048-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 07/20/2013] [Indexed: 12/30/2022]
Abstract
PURPOSE Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare soft tissue tumour first identified at the end of the 1990s. This study presents our experience and literature reviews focusing on risk of recurrence. METHODS Rizzoli Orthopaedic Institute database and literature were searched for patients with MIFS observed from 1997 to 2012. Data were analysed in a new database. RESULTS Five patients underwent surgery at our institute, and 133 cases were retrieved from the literature. Not all clinicopathological data were available: 76/138 were men (55%), median age was 45 [interquartile range (IQR) 34-56] years, median tumour size was three (IQR two to five) centimetres. Common sites of occurrence were hand (24%), fingers (23%) and foot (20%). Pain was present at diagnosis in 14/82 patients (17%), with a median duration of seven (IQR three to 12) months. Surgery was performed for a suspected benign tumour in 88 patients (74%). Resection was incomplete in 45/71 cases (63%); re-excision was performed in 32/45 (71%). At a median follow-up of 26 months, 26/118 patients (22%) developed recurrent disease; median time to recurrence was 15 months (IQR seven to 26). Actuarial relapse-free survival (RFS) at one, three and five years was 93%, 72% and 67%, respectively. At univariate analysis, only symptom duration of six months or less was significantly associated with a worse RFS (p = 0.046). Metastatic disease to lymph nodes and/or lungs was observed in four patients (3%). CONCLUSIONS Clinicopathological findings confirm the low-grade nature of MIFS. However, local recurrence occurs, and patients may be affected by aggressive forms with a potential for distant metastases. Follow-up is strongly advised.
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Affiliation(s)
- Raffaele Lombardi
- General and Thoracic Surgery, Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136, Bologna, Italy
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Wickham MQ, Youens KE, Dodd LG. Acral myxoinflammatory fibroblastic sarcoma fine needle aspiration: A case report. Diagn Cytopathol 2011; 40 Suppl 2:E144-8. [PMID: 21548124 DOI: 10.1002/dc.21721] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Accepted: 03/15/2011] [Indexed: 12/26/2022]
Affiliation(s)
- M Quinn Wickham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
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Flooks R, Vanacker A, Van Dorpe J, Smet B, Vandewiele I, De Schoenmakere G, Maes B. Acral myxoinflammatory fibroblastic sarcoma in a renal transplant patient: a case report. Transplant Proc 2010; 41:3437-9. [PMID: 19857766 DOI: 10.1016/j.transproceed.2009.09.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Herein, we have reported a case of a 62-year-old patient who presented at 10 months after renal transplantation with a nodular mass on the dorsum of his foot. Local excision was performed and an acral myxoinflammatory fibroblastic sarcoma was diagnosed. This is a rare, low-grade sarcoma with a high rate of local recurrence, sometimes leading to amputation. Metastasis to the lungs and liver has been reported, but is rare. Since our patient received triple immunosuppressive therapy, our major concern was a much more aggressive behavior. However, more than 2 years after excision of the tumor, the patient is still free of disease.
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Affiliation(s)
- R Flooks
- Departments of Nephrology, Universitas Hospital Bloemfontein, South Africa
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Monson E, Vancourt R, Dawson J. Myxoinflammatory fibroblastic sarcoma: a case report and review of the literature. J Foot Ankle Surg 2010; 49:86.e1-3. [PMID: 20123295 DOI: 10.1053/j.jfas.2009.07.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2007] [Indexed: 02/03/2023]
Abstract
The majority of soft tissue masses seen in the lower extremity are benign tumors caused by degenerative, reactive, or inflammatory processes. Sarcomas are relatively uncommon entities but need to be diagnosed and treated appropriately. We present a case of a myxoinflammatory fibroblastic sarcoma of the leg and review the literature on this topic. This is a rare tumor that predominately involves the distal extremities. It often presents as a painless mass within the subcutaneous tissue and can easily be confused with benign lesions. A high rate of local recurrence means patients must be followed up closely after resection of the tumor.
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Affiliation(s)
- Erik Monson
- Section of Podiatry, Ohio State University Medical Center, Columbus, OH, USA.
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Reiland Y, Dumont CE, Bode-Lesniewska B, Ulrich Exner G. Extra-articular en bloc resection of the talocrural and the talocalcaneonavicular joints for primary malignant synovial tumour (myxoinflammatory fibroblastic sarcoma). ACTA ACUST UNITED AC 2009; 42:211-4. [PMID: 18763199 DOI: 10.1080/02844310601140352] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kobayashi E, Kawai A, Endo M, Suehara Y, Takeda K, Nakatani F, Asano T, Sakuraba M, Chuman H, Seki K, Beppu Y. Myxoinflammatory fibroblastic sarcoma. J Orthop Sci 2008; 13:566-71. [PMID: 19089546 DOI: 10.1007/s00776-008-1274-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2007] [Accepted: 06/11/2008] [Indexed: 12/14/2022]
Affiliation(s)
- Eisuke Kobayashi
- Department of Orthopedic Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
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Kovarik CL, Barrett T, Auerbach A, Cassarino DS. Acral myxoinflammatory fibroblastic sarcoma: case series and immunohistochemical analysis. J Cutan Pathol 2008; 35:192-6. [PMID: 18190444 DOI: 10.1111/j.1600-0560.2007.00791.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Acral myxoinflammatory fibroblastic sarcoma (AMFS) is a rare, low-grade neoplasm most often occurring on the extremities of adults. It consists of mixed inflammatory infiltrates with nodules of epithelioid, spindled and bizarre-appearing cells within a fibrosclerotic-to-myxoid stroma. AMFS frequently recurs, but only rarely metastasizes. MATERIALS AND METHODS A retrospective analysis of all cases of AMFS seen in the past 4 years from the Stanford University Laboratory of Surgical Pathology and collaborating institutions was performed. We sought to better characterize the clinicopathologic characteristics of this rare tumor. Immunohistochemical stains, including CD34, epithelial membrane antigen (EMA), epidermal growth factor receptor (EGFR), CD117, CD163, Ki67 and p53, were also performed. RESULTS Eighteen cases were analyzed, and clinical information was available on 13 of them. The mean age at diagnosis was 48 years old, 10/13 (77%) occurred on the distal extremities and diameter of the lesions ranged from 1.0 to 10.0 cm. Treatment included wide local or radical excision and local recurrences were not reported. Many of the lesions were multinodular. Histologic characteristics included the presence of fibrosclerotic and myxoid stroma, sheets of spindled to round epithelioid cells, Reed-Sternberg or virocyte-like cells, lipoblast-like cells and rare mitotic figures. In most cases, CD34, EGFR and CD163 were diffusely positive. EMA and CD117 were weakly positive in some cases. Ki67 labeled < 10% of cells, and staining with P53 was variable. CONCLUSIONS Because AMFS may be mistaken for lymphoma, infection or tumors with higher metastatic potential, correct diagnosis is important to avoid unnecessary procedures and allow for proper clinical management. EGFR positivity suggests possible therapeutic use in aggressive cases.
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Affiliation(s)
- Carrie L Kovarik
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA
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Hassanein AM, Atkinson SP, Al-Quran SZ, Jain SM, Reith JD. Acral myxoinflammatory fibroblastic sarcomas: are they all low-grade neoplasms? J Cutan Pathol 2008; 35:186-91. [PMID: 18190443 DOI: 10.1111/j.1600-0560.2007.00789.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Acral myxoinflammatory fibroblastic sarcoma (AMIFS) is a low-grade sarcoma that presents mostly in distal extremities of middle-aged patients. The clinicopathologic features, immunohistochemical profile and follow-up data of five cases (three men and two women; age 39-65 years) are presented. The tumors presented as a slow-growing, poorly circumscribed, subcutaneous masses in the hands (three), foot (one) and calf (one), with dermal involvement in two cases. They had myxoid and hyaline stroma with dense acute and chronic inflammation. Spindle cells, large bizarre ganglion-like cells and multivacuolated cells were seen. Variable reactivity in lesional cells were noted for vimentin, Alpha-1-antitrypsin (A1AT), factor XIIIa, CD68, CD95, CD117, Alpha-1-antichymotrypsin (A1ACT), CD34, AE1/3, S-100 protein, EBER, CD63 and CD15. MIB-1 showed 5-30% nuclear labeling. They were negative for cytokeratin AE1/3, smooth muscle actin, CD30, ALK-1, EMA, desmin, CMV, HMB-45 and Melan-A. Follow up ranged from 2 weeks to 95 months (mean 54). One patient was lost to follow up; three underwent excision and one patient had below the knee amputation. Two patients developed metastases (one died of disease), and two patients are alive without evidence of disease. AMIFS are rare tumors that may involve joints and tendons leading to clinical diagnosis of ganglion cyst or tenosynovitis.
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Affiliation(s)
- Ashraf M Hassanein
- Department of Pathology, Immunology and Laboratory Medicine, and Department of Dermatology, University of Florida College of Medicine, Gainesville, FL 32610, USA.
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Gonzalez-Cámpora R, Ríos-Martín JJ, Solórzano-Amoretti A, Vargas de los Monteros MT, Trigo-Sánchez I, Otal-Salaverri C, Galera-Davidson H. Fine needle aspiration cytology of an acral myxoinflammatory fibroblastic sarcoma: case report with cytological and cytogenetic findings. Cytopathology 2008; 19:118-23. [PMID: 17511780 DOI: 10.1111/j.1365-2303.2006.00420.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- R Gonzalez-Cámpora
- Departamento de Anatomía Patológica, Hospital Universitario, Virgen Macarena, Facultad de Medicina, Sevilla, Spain.
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Premalata CS, Rama Rao C, Padma M, Vijaykumar M. Myxoinflammatory fibroblastic sarcoma - report of a rare case at an unusual site with review of the literature. Int J Dermatol 2007; 47:68-71. [PMID: 18173608 DOI: 10.1111/j.1365-4632.2007.03418.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Ida CM, Rolig KA, Hulshizer RL, Van Dyke DL, Randolph JL, Jenkins RB, Nascimento AG, Oliveira AM. Myxoinflammatory fibroblastic sarcoma showing t(2;6)(q31;p21.3) as a sole cytogenetic abnormality. ACTA ACUST UNITED AC 2007; 177:139-42. [PMID: 17854670 DOI: 10.1016/j.cancergencyto.2007.05.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2007] [Revised: 05/17/2007] [Accepted: 05/22/2007] [Indexed: 11/29/2022]
Abstract
Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare, low-grade sarcoma characterized by distinctive, large, and bizarre Reed--Sternberg--like cells associated with an intense inflammatory infiltrate. The biology of MIFS is still poorly understood, and only two previous cases had been studied cytogenetically. In the present case, analysis of MIFS in the foot of a 53-year-old man revealed the chromosome translocation t(2;6)(q31;p21.3) as the only cytogenetic abnormality. This finding is distinct from the two cases previously reported. Additional studies are needed to verify whether any of these chromosome rearrangements are involved recurrently in MIFS.
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Affiliation(s)
- Cristiane M Ida
- Division of Anatomic Pathology, Hospital das Clinicas (C.M.I.), São Paulo University School of Medicine, São Paulo, SP, Brazil
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Bar-Meir E, Fridman E, Zilinsky I, Orenstein A, Winkler E. Myxoinflammatory fibroblastic sarcoma in an unreported area (groin). J Cutan Pathol 2007; 34:276-80. [PMID: 17302613 DOI: 10.1111/j.1600-0560.2006.00605.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Myxoinflammatory fibroblastic sarcoma (MIFS) is a rare tumor presenting as a painless subcutaneous mass in the extremities first reported in 1998. We report the first case of a MIFS tumor in the groin. METHODS We have performed seven immunohistochemical stains that were not applied before on MIFS. RESULTS The first case of a MIFS tumor in the groin. CONCLUSIONS MIFS must be considered in the differential diagnosis of a painless mass not only in the distal extremities but also in the groin. The diagnosis of this tumor is difficult and can be missed if not considered because of the unusual location. Due to high recurrence rates and one case of documented metastases, the recommended treatment is wide excision.
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Affiliation(s)
- Eran Bar-Meir
- Department of Plastic and Reconstructive Surgery, Chaim Sheba Medical Center, Tel Hashomer, Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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