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Hatchett WJ, Brunetti M, Andersen K, Tandsæther MR, Lobmaier I, Lund-Iversen M, Lien-Dahl T, Micci F, Panagopoulos I. Genetic characterization of intramuscular myxomas. Pathol Oncol Res 2024; 30:1611553. [PMID: 38317844 PMCID: PMC10838995 DOI: 10.3389/pore.2024.1611553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/10/2024] [Indexed: 02/07/2024]
Abstract
Introduction: Intramuscular myxomas are benign tumors that are challenging to diagnose, especially on core needle biopsies. Acquired chromosomal aberrations and pathogenic variants in codon 201 or codon 227 in GNAS complex locus gene (GNAS) have been reported in these tumors. Here we present our genetic findings in a series of 22 intramuscular myxomas. Materials and methods: The tumors were investigated for the presence of acquired chromosomal aberrations using G-banding and karyotyping. Pathogenic variants in codon 201 or codon 227 of GNAS were assessed using direct cycle Sanger sequencing and Ion AmpliSeq Cancer Hotspot Panel v2 methodologies. Results: Eleven tumors carried chromosomal abnormalities. Six tumors had numerical, four had structural, and one had both numerical and structural chromosomal aberrations. Gains of chromosomes 7 and 8 were the most common abnormalities being found in five and four tumors respectively. Pathogenic variants in GNAS were detected in 19 myxomas (86%) with both methodologies. The detected pathogenic variants were p.R201H in nine cases (seven with abnormal and two with normal karyotypes), p.R201C in five cases, all with normal karyotypes, p.R201S in three cases (two with abnormal and one with normal karyotype), p.R201G in one case with a normal karyotype, and p.Q227E in one case with a normal karyotype. Conclusion: Firstly, our data indicate a possible association between chromosomal abnormalities and GNAS pathogenic variants in intramuscular myxomas. Secondly, the presence of the rare pathogenic variants R201S, p.R201G and p.Q227E in 26% (5 out of 19) of myxomas with GNAS pathogenic variants shows that methodologies designed to detect only the common "hotspot" of p.R201C and p.R201H will give false negative results. Finally, a comparison between Ion AmpliSeq Cancer Hotspot Panel v2 and direct cycle Sanger sequencing showed that direct cycle Sanger sequencing provides a quick, reliable, and relatively cheap method to detect GNAS pathogenic variants, matching even the most cutting-edge sequencing methods.
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Affiliation(s)
- William John Hatchett
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Marta Brunetti
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Kristin Andersen
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Maren Randi Tandsæther
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Ingvild Lobmaier
- Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Marius Lund-Iversen
- Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Thomas Lien-Dahl
- Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Francesca Micci
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Ioannis Panagopoulos
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
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2
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Georgantzoglou N, Linos K. An update on selected cutaneous (myo) fibroblastic mesenchymal tumors. Semin Diagn Pathol 2023; 40:295-305. [PMID: 37150655 PMCID: PMC10602371 DOI: 10.1053/j.semdp.2023.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 04/24/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023]
Abstract
Cutaneous (myo)fibroblastic tumors constitute a group of tumors with overlapping clinicopathological features and variable biologic behavior. In the present review we focus on the histomorphology, immunohistochemical profile and molecular background of the following entities: dermatofibrosarcoma protuberans (DFSP), CD34-positive fibroblastic tumor (SCD34FT), myxoinflammatory sarcoma (MIFS), low-grade myofibroblastic sarcoma, solitary fibrous tumor and nodular fasciitis. Although some of these entities typically arise in deep-seated locations, they may occasionally present as cutaneous/superficial tumors and might be challenging to recognize. This review covers in depth the latest advances in molecular diagnostics and immunohistochemical markers that have significantly facilitated the correct classification and diagnosis of these neoplasms.
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Affiliation(s)
- Natalia Georgantzoglou
- Department of Pathology & Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH, United States
| | - Konstantinos Linos
- Department of Pathology & Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States.
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3
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Díaz-Flores L, Gutiérrez R, García MP, González-Gómez M, Rodríguez-Rodriguez R, Hernández-León N, Díaz-Flores L, Carrasco JL. Cd34+ Stromal Cells/Telocytes in Normal and Pathological Skin. Int J Mol Sci 2021; 22:ijms22147342. [PMID: 34298962 PMCID: PMC8307573 DOI: 10.3390/ijms22147342] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/04/2021] [Accepted: 07/05/2021] [Indexed: 11/25/2022] Open
Abstract
We studied CD34+ stromal cells/telocytes (CD34+SCs/TCs) in pathologic skin, after briefly examining them in normal conditions. We confirm previous studies by other authors in the normal dermis regarding CD34+SC/TC characteristics and distribution around vessels, nerves and cutaneous annexes, highlighting their practical absence in the papillary dermis and presence in the bulge region of perifollicular groups of very small CD34+ stromal cells. In non-tumoral skin pathology, we studied examples of the principal histologic patterns in which CD34+SCs/TCs have (1) a fundamental pathophysiological role, including (a) fibrosing/sclerosing diseases, such as systemic sclerosis, with loss of CD34+SCs/TCs and presence of stromal cells co-expressing CD34 and αSMA, and (b) metabolic degenerative processes, including basophilic degeneration of collagen, with stromal cells/telocytes in close association with degenerative fibrils, and cutaneous myxoid cysts with spindle-shaped, stellate and bulky vacuolated CD34+ stromal cells, and (2) a secondary reactive role, encompassing dermatitis—e.g., interface (erythema multiforme), acantholytic (pemphigus, Hailey–Hailey disease), lichenoid (lichen planus), subepidermal vesicular (bullous pemphigoid), psoriasiform (psoriasis), granulomatous (granuloma annulare)—vasculitis (leukocytoclastic and lymphocytic vasculitis), folliculitis, perifolliculitis and inflammation of the sweat and sebaceous glands (perifolliculitis and rosacea) and infectious dermatitis (verruca vulgaris). In skin tumor and tumor-like conditions, we studied examples of those in which CD34+ stromal cells are (1) the neoplastic component (dermatofibrosarcoma protuberans, sclerotic fibroma and solitary fibrous tumor), (2) a neoplastic component with varying presentation (fibroepithelial polyp and superficial myxofibrosarcoma) and (3) a reactive component in other tumor/tumor-like cell lines, such as those deriving from vessel periendothelial cells (myopericytoma), epithelial cells (trichoepithelioma, nevus sebaceous of Jadassohn and seborrheic keratosis), Merkel cells (Merkel cell carcinoma), melanocytes (dermal melanocytic nevi) and Schwann cells (neurofibroma and granular cell tumor).
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Affiliation(s)
- Lucio Díaz-Flores
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain; (R.G.); (M.G.-G.); (R.R.-R.); (N.H.-L.); (L.D.-F.J.); (J.L.C.)
- Correspondence: ; Tel.: +34-922-319-317; Fax: +34-922-319-279
| | - Ricardo Gutiérrez
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain; (R.G.); (M.G.-G.); (R.R.-R.); (N.H.-L.); (L.D.-F.J.); (J.L.C.)
| | - Maria Pino García
- Department of Pathology, Eurofins Megalab–Hospiten Hospitals, 38100 Tenerife, Spain;
| | - Miriam González-Gómez
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain; (R.G.); (M.G.-G.); (R.R.-R.); (N.H.-L.); (L.D.-F.J.); (J.L.C.)
| | - Rosa Rodríguez-Rodriguez
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain; (R.G.); (M.G.-G.); (R.R.-R.); (N.H.-L.); (L.D.-F.J.); (J.L.C.)
| | - Nieves Hernández-León
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain; (R.G.); (M.G.-G.); (R.R.-R.); (N.H.-L.); (L.D.-F.J.); (J.L.C.)
| | - Lucio Díaz-Flores
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain; (R.G.); (M.G.-G.); (R.R.-R.); (N.H.-L.); (L.D.-F.J.); (J.L.C.)
| | - José Luís Carrasco
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain; (R.G.); (M.G.-G.); (R.R.-R.); (N.H.-L.); (L.D.-F.J.); (J.L.C.)
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4
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Ding L, Xu WJ, Tao XY, Zhang L, Cai ZG. Clinicopathological features of superficial CD34-positive fibroblastic tumor. World J Clin Cases 2021; 9:2739-2750. [PMID: 33969057 PMCID: PMC8058686 DOI: 10.12998/wjcc.v9.i12.2739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/13/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Superficial CD34-positive fibroblastoma (SCPFT) is a newly discovered mesenchymal tumor characterized by high polymorphism, low mitotic rate, and diffuse CD34-positive reactions.
AIM To further determine the clinicopathological features of SCPFT.
METHODS We retrospectively analyzed the clinicopathological data, immunohistochemistry results, and differential diagnoses of four patients with SCPFT and performed a literature review. Relevant fusion genes were also detected.
RESULTS The tumors were all located in the lower extremities and presented as slow-growing painless masses located in the dermis and subcutaneous tissue. Microscopically, the tumors were composed of spindle-shaped to epithelioid cells with scattered abnormal and pleomorphic nuclei on a fibrous or fibromyxoid background. Necrosis was not found in the tumor tissues, and mitotic figures were rare. Immunohistochemically, the tumor cells were strongly positive for vimentin and CD34, and CKpan showed focal positivity in two tumors. All four patients were followed (13-57 mo, mean 35 mo), and one patient experienced local recurrence.
CONCLUSION SCPFT is a newly discovered borderline mesenchymal tumor that can locally recur or even metastasize. Familiarity with its clinicopathological features will help avoid confusion with skin mesenchymal tumors with similar features.
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Affiliation(s)
- Li Ding
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Wen-Jing Xu
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Xiao-Ying Tao
- Department of Pathology, Hangzhou People's Hospital, Hangzhou 310000, Zhejiang Province, China
| | - Liang Zhang
- Department of Pathology, Huaiyuan County People's Hospital, Bengbu 233000, Anhui Province, China
| | - Zhao-Gen Cai
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
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5
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Batur S, Ozcan K, Ozcan G, Tosun I, Comunoglu N. Superficial CD34 positive fibroblastic tumor: report of three cases and review of the literature. Int J Dermatol 2018; 58:416-422. [PMID: 30569527 DOI: 10.1111/ijd.14357] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 11/14/2018] [Accepted: 11/26/2018] [Indexed: 12/24/2022]
Abstract
Superficial CD34 positive fibroblastic tumor (SCPFT) is a recently recognized, unique neoplasm with distinctive histomorphological features such as high pleomorphism, low mitotic rate, and diffuse CD34 reactivity. Hereby we present three cases of our experience with clinicopathological, morphological, and immunohistochemical characteristics. The patients were a 31-year-old female, 53-year-old female, and 33-year-old male. The tumors were all superficially located; left forearm, medial aspect of the left ankle, and left thigh, respectively. Histomorphologically they had expansile and focal infiltrative growth pattern consisting of highly pleomorphic spindle cells with intranuclear inclusions, yet low mitotic rate. Tumoral cells showed strong and diffuse reactivity for CD34. One of our cases showed focal and weak reactivity for pancytokeratin. Unlike the other two tumors, one case was positive for desmin. During the clinical follow-up, one case showed local recurrence four times. SCPFT is a newly recognized, borderline mesenchymal neoplasm of soft tissues that can show local recurrence or even rarely metastasize. To the best of our knowledge, this three case series is the first to be reported from Turkey. Our aim to report these three cases was to make contribution to the literature about this rare entity and increase awareness.
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Affiliation(s)
- Sebnem Batur
- Department of Pathology, Istanbul University Cerrahpasa-Cerrahpasa Faculty of Medicine, Istanbul, Turkey
| | - Kerem Ozcan
- Department of Pathology, Istanbul University Cerrahpasa-Cerrahpasa Faculty of Medicine, Istanbul, Turkey
| | - Gamze Ozcan
- Department of Pathology, Istanbul University Cerrahpasa-Cerrahpasa Faculty of Medicine, Istanbul, Turkey
| | - Ilkay Tosun
- Department of Pathology, Istanbul Umraniye Training and Research Hospital, Istanbul, Turkey
| | - Nil Comunoglu
- Department of Pathology, Istanbul University Cerrahpasa-Cerrahpasa Faculty of Medicine, Istanbul, Turkey
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6
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Sunitsch S, Gilg MM, Kashofer K, Gollowitsch F, Leithner A, Liegl-Atzwanger B. Detection of GNAS mutations in intramuscular / cellular myxomas as diagnostic tool in the classification of myxoid soft tissue tumors. Diagn Pathol 2018; 13:52. [PMID: 30111377 PMCID: PMC6094570 DOI: 10.1186/s13000-018-0734-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 07/30/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Intramuscular / cellular myxomas and low-grade myxofibrosarcomas are two different tumor entities with a significant histological overlap, especially if dealing with small biopsies. Despite the morphological similarities, they differ considerably in their biological behaviour. Intramuscular / cellular myxoma rarely shows signs of recurrence and never metastasizes, in contrast to myxofibrosarcoma that tends to recur more aggressively and to metastasize haematologically. Therefore, it is of great importance to distinguish these lesions - evaluation of GNAS mutation status could be of tremendous help. METHODS We reviewed 13 cases with intramuscular / cellular myxomas. The 13 cases included 5 men and 8 women, aged from 33 to 71 years (mean age 55.5 years). Immunohistochemistry was performed as well as next generation sequencing. Ten cases were located in the lower extremities and three cases were located in the upper extremities. Two lesions were initially misdiagnosed as a low-grade myxofibrosarcoma. RESULTS Performing next generation sequencing 12 out of 13 specimens showed a GNAS mutation. CONCLUSIONS Our findings demonstrate that GNAS mutations are more common in intramuscular / cellular myxomas, than had been reported in literature in the past. Next generation sequencing for determining GNAS mutation status on small biopsies or diagnostically challenging cases facilitates the diagnosis of intramuscular / cellular myxoma and separates this tumor entity from its mimics.
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Affiliation(s)
- Sandra Sunitsch
- Institute of Pathology, Klinikum Klagenfurt am Wörthersee, Feschnigstraße 11, 9020, Klagenfurt am Wörthersee, Austria.,Institute of Pathology, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria
| | - Magdalena Maria Gilg
- Department of Orthopedics and Trauma Surgery, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria.
| | - Karl Kashofer
- Institute of Pathology, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria
| | - Franz Gollowitsch
- Institute of Pathology, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria
| | - Andreas Leithner
- Department of Orthopedics and Trauma Surgery, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria
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7
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Tjarks BJ, Ko JS, Billings SD. Myxofibrosarcoma of unusual sites. J Cutan Pathol 2017; 45:104-110. [DOI: 10.1111/cup.13063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 10/19/2017] [Indexed: 12/24/2022]
Affiliation(s)
- B. Joel Tjarks
- Department of Pathology; University of South Dakota - Sanford School of Medicine; Sioux Falls South Dakota
| | - Jennifer S. Ko
- Department of Pathology; Cleveland Clinic; Cleveland Ohio
- Department of Dermatology; Cleveland Clinic; Cleveland Ohio
| | - Steven D. Billings
- Department of Pathology; Cleveland Clinic; Cleveland Ohio
- Department of Dermatology; Cleveland Clinic; Cleveland Ohio
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8
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Abstract
CONTEXT - Cutaneous and superficial soft tissue spindle cell proliferations with CD34 expression represent a unique heterogeneous group of lesions. They can pose diagnostic challenges for unaware pathologists in their daily practice. OBJECTIVE - To review selected entities of CD34+ spindle cell proliferations in the skin and superficial soft tissue. The effective diagnostic approaches using clinical, histopathologic, and immunophenotypical findings are discussed within a broad spectrum of differential diagnosis. DATA SOURCES - All information used in the article is obtained from published literature by PubMed search and Internet-based search engines. The authors' collective experience and real-life examples are also used. CONCLUSIONS - Spindle cell proliferations with CD34 positivity can be worked up to a definitive diagnosis by using clinical, histopathologic, and immunophenotypical findings. Familiarity with these entities helps pathologists make the accurate diagnosis.
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Affiliation(s)
| | - Limin Yu
- From the Department of Pathology, Tri-State Pathology Associates and St Mary Medical Center, Evansville, Indiana (Dr Yang); and the Department of Pathology, William Beaumont Hospital, Royal Oak, Michigan (Dr Yu)
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9
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Ranganathan K, Mathew SA, Sreena NS, Lavanya N. Fat Free Pleomorphic Lipoma of Oral Cavity: A Rare Entity. J Clin Diagn Res 2017; 11:ZD01-ZD03. [PMID: 28511518 DOI: 10.7860/jcdr/2017/24609.9357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 12/04/2016] [Indexed: 11/24/2022]
Abstract
Pleomorphic lipoma is a rare, benign, soft tissue neoplasm that characteristically occurs as a subcutaneous mass in the posterior neck or upper back and rarely in the tonsillar fossa and oral cavity. Histologically, pleomorphic lipoma contains varying amounts of mature fat, areas of spindle and pleomorphic cells, floret giant cells and thick rope - like collagen in a myxoid stroma. Pleomorphic lipoma with scanty fatty elements is called the fat free variant of pleomorphic lipoma. The combination of meagre amount of fat and presence of pleomorphic elements gives a pseudosarcomatous picture under the microscope leading to misdiagnosis and over treatment. Here, we report a case of fat free pleomorphic lipoma, first of its kind in the oral cavity and discuss the diagnostic features and differential diagnosis.
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Affiliation(s)
- Kannan Ranganathan
- Professor and Head, Department of Oral Pathology, Ragas Dental College and Hosptal, Chennai, Tamil Nadu, India
| | - Seema Alice Mathew
- Senior Lecturer, Department of Oral and Maxillofacial Surgery, Ragas Dental College and Hosptal, Chennai, Tamil Nadu, India
| | - Nellimad Sreedharan Sreena
- Former Postgraduate Student, Department of Oral Pathology, Ragas Dental College and Hosptal, Chennai, Tamil Nadu, India
| | - Nagarajan Lavanya
- Reader, Department of Oral Pathology, Ragas Dental College and Hosptal, Chennai, Tamil Nadu, India
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10
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Lao IW, Yu L, Wang J. Superficial CD34-positive fibroblastic tumour: a clinicopathological and immunohistochemical study of an additional series. Histopathology 2016; 70:394-401. [PMID: 27636918 DOI: 10.1111/his.13088] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/14/2016] [Indexed: 01/11/2023]
Abstract
AIMS To describe an additional series of superficial CD34-positive fibroblastic tumour, a newly described neoplasm, in order to enhance the recognition of an emerging novel entity. METHODS AND RESULTS The clinicopathological features and immunophenotypes of 11 cases of superficial CD34-positive fibroblastic tumour were studied. There were eight males and three females, with a median age of 36 years. Tumours occurred in the thigh (n = 4), buttock (n = 3), shoulder (n = 2), upper arm (n = 1), and waist (n = 1). Histologically, all tumours were characterized by relative circumscription, pleomorphic spindled to polygonal cells with variably enlarged bizarre-appearing cells, intranuclear cytoplasmic pseudoinclusions, and extremely low mitotic activity. Immunohistochemically, neoplastic cells showed diffuse and strong expression of CD34 and focal staining of cytokeratin. Follow-up thus far has revealed an indolent clinical behaviour. CONCLUSIONS Superficial CD34-positive fibroblastic tumour represents a new member of the family of cutaneous CD34-positive spindle-cell tumours. Familiarity with its clinicopathological characteristics is helpful in avoiding confusion with a variety of cutaneous mesenchymal tumours with overlapping features.
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Affiliation(s)
- I Weng Lao
- Department of Pathology, Fudan University Shanghai Cancer Centre, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lin Yu
- Department of Pathology, Fudan University Shanghai Cancer Centre, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jian Wang
- Department of Pathology, Fudan University Shanghai Cancer Centre, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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11
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Zou Y, Billings SD. Myxoid cutaneous tumors: a review. J Cutan Pathol 2016; 43:903-18. [DOI: 10.1111/cup.12749] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 02/16/2016] [Accepted: 04/05/2016] [Indexed: 01/16/2023]
Affiliation(s)
- Youran Zou
- Department of PathologyCleveland Clinic Cleveland OH USA
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12
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He J, Chen JD. Polypoid myxofibrosarcoma of the colon: A case report and literature review. Shijie Huaren Xiaohua Zazhi 2015; 23:1535-1538. [DOI: 10.11569/wcjd.v23.i9.1535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Myxofibrosarcoma is a rare malignant soft-tissue tumor with unique clinical and pathological characteristics. Myxofibrosarcoma occurring in the colon with polypoid growth is even rarer. A 55-year-old female patient presented with abdominal pain and hematochezia for a week. She underwent an electronic colonoscopic examination, which revealed a polypoid lump in the ascending colon. She then underwent partial colectomy, and postoperative pathological diagnosis suggested polypoid myxofibrosarcoma of the colon (grade 1).
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