1
|
Li X, Zhang M, Yu T, Li G. Parotid gland solitary fibrous tumor with mandibular bone destruction: A case report and literature review. Asian J Surg 2023; 46:4018-4019. [PMID: 37100657 DOI: 10.1016/j.asjsur.2023.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/07/2023] [Indexed: 04/28/2023] Open
Affiliation(s)
- Xiya Li
- Department of Ultrasound, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, Liaoning Province, China.
| | - Mengmeng Zhang
- Department of Ultrasound, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, Liaoning Province, China.
| | - Tingting Yu
- Department of Ultrasound, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, Liaoning Province, China.
| | - Guangsen Li
- Department of Ultrasound, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, Liaoning Province, China.
| |
Collapse
|
2
|
Suzuki K, Noda Y, Sakagami T, Yagi M, Kusafuka K, Iwai H. Head and Neck Solitary Fibrous Tumor Presenting as Salivary Gland Tumor: Two Case Reports and Review of the Literature. Case Rep Oncol 2023; 16:465-473. [PMID: 37485015 PMCID: PMC10359685 DOI: 10.1159/000531067] [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: 12/28/2022] [Accepted: 05/05/2023] [Indexed: 07/25/2023] Open
Abstract
Solitary fibrous tumors (SFTs) are soft tumors (mesenchymal origin) that most likely develop from adult mesenchymal stem cells. SFTs are not common in the head and neck region, and the characteristics of tumors in this location are unclear. The present study describes the clinicopathological findings of 2 cases of SFTs arising in the parotid gland and buccal space, presenting as salivary gland tumors. The first case is a 76-year-old man presenting with a painless tumor on the right parotid gland who subsequently underwent partial superficial parotidectomy. According to the results of histopathological analysis, the tumor consisted of stellate and spindle-shaped cells proliferating on a mucous-like substrate. Immunohistochemical staining revealed that neoplastic cells were positive for CD34, vimentin, Bcl2, and STAT6. The second case is of a 64-year-old man presenting with a painless lump on his right cheek. Based on the findings of fine needle aspiration cytology, a tumor derived from myoepithelial cells of the minor salivary gland or a nonepithelial tumor was suspected. The patient underwent surgical resection via an intraoral approach. Histopathologically, the tumor consisted of spindle-shaped cells with rod-shaped or irregular nuclei. Immunohistochemical staining revealed that the neoplastic cells were positive for CD34, CD99, Bcl2, and STAT6. Briefly, SFT should be considered in the differential diagnosis of a well-marginalized lesion in the salivary gland and oral cavity. STAT6 immunohistochemistry is the most specific and sensitive method of diagnosing SFT. A thorough understanding of the morphological changes associated with SFT and their correlation with clinical, immunohistochemical, and molecular characteristics is important to avoid misdiagnosis.
Collapse
Affiliation(s)
- Kensuke Suzuki
- Department of Otolaryngology, Head and Neck Surgery, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yuri Noda
- Department of Pathology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Tomofumi Sakagami
- Department of Otolaryngology, Head and Neck Surgery, Kansai Medical University, Hirakata, Osaka, Japan
| | - Masao Yagi
- Department of Otolaryngology, Head and Neck Surgery, Kansai Medical University, Hirakata, Osaka, Japan
| | | | - Hiroshi Iwai
- Department of Otolaryngology, Head and Neck Surgery, Kansai Medical University, Hirakata, Osaka, Japan
| |
Collapse
|
3
|
Parotid Gland Solitary Fibrous Tumor Presenting as a Long Duration Mass: A Case Report. Case Rep Pathol 2022; 2022:2097634. [PMID: 35251728 PMCID: PMC8894058 DOI: 10.1155/2022/2097634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/28/2022] [Indexed: 11/17/2022] Open
Abstract
The solitary fibrous tumor (SFT) is a tumor of uncertain histogenesis, affecting deep soft tissues, particularly the pleura (pulmonary) and extrapulmonary sites including thighs, retroperitoneum, other serosal surfaces, and cranial and spinal meninges. SFT and hemangiopericytoma are now considered the same entity, with general agreement on referring to this group of tumors as “SFT.” SFTs are generally benign tumors with small subsets of malignant ones. Moreover, they are well-circumscribed with a good prognosis after surgical resection. SFTs are uncommon in the head and neck and are quite rare in the parotid gland region. Here, we present a case of a 48-year-old female with SFT of the parotid gland region; the diagnosis was confirmed by positive immunohistochemical staining for Bcl-2, CD34, and STAT6. STAT6 immunohistochemistry is sensitive and specific for SFTs.
Collapse
|
4
|
Recurrent fibrous solitary tumor of the parotid gland with satellite location: imaging, clinical and histological findings of rare entity. Radiol Case Rep 2021; 16:2924-2928. [PMID: 34401027 PMCID: PMC8349757 DOI: 10.1016/j.radcr.2021.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 11/24/2022] Open
Abstract
Fibrous Solitary Tumors are infrequent neoplasms originating from mesenchymal tissues, most commonly arising from the visceral pleura and frequently exhibiting a benign behavior. Extra-pleural localization is unusual and the site of origin of these tumors from the parenchyma of the parotid gland is considered extremely rare. We report the case of a 66-years old woman with non-painful slow-growing left latero-cervical mass, who underwent a gadolinium-enhanced Magnetic Resonance Imaging showing a mass originating from the deep lobe of the parotid gland extending into the retro-pharyngeal space. After a total parotidectomy with tumor excision, a diagnosis of histologically proven fibrous solitary tumor of the parotid gland was made. Two years later, CT scan showed post-operative recurrence and further satellite localization in the neck, distant from the initial mass. We performed a literature review of the published similar cases, in order to clinicopathological and imaging features of this rare entity.
Collapse
|
5
|
Bhalla VK, Chockattu SJ. Publication trends in journal of clinical and experimental dentistry. J Clin Exp Dent 2020; 12:e857-e863. [PMID: 32994875 PMCID: PMC7511045 DOI: 10.4317/jced.56640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 07/02/2020] [Indexed: 11/12/2022] Open
Abstract
Background Journal of Clinical and Experimental Dentistry (J Clin Exp Dent; JCED) is an English language journal published by the Spanish Society of Oral Surgery, and has been online since 2009. It is indexed in PubMed Central and Scopus since 2012, with monthly publications since 2016. The purpose of this article was to review and analyse the publications in this journal since its inception, over a period of 11 years (2009-2019).
Material and Methods This paper assessed the number, type and subjects of the articles published in the journal over 11 years. The institutions of the first authors, number of PubMed citations and the Hirsch (h5) index was assessed and analysed.
Results The manuscripts published in JCED have gradually increased over the years, with Original research articles accounting for the bulk of contributions. The journal publishes articles mainly from the subjects of Oral Pathology and Operative Dentistry and Endodontics. Articles published in JCED are indexed in PubMed Central (since 2012), Scopus, DOI system, and Google Scholar. A country-wise mapping of the (first) author’s institutions revealed significant contributions from researchers from all over the world. With an h5 index of 26, the journal was ranked among the top six multispeciality journals. The most cited articles were the literature reviews on common oral lesions (recurrent apthous stomatitis and candidiasis).
Conclusions The journal has contributed to the growth of scientific literature pertaining to subjects from all the fields of dentistry. Over the past 11 years, JCED has served as a platform for large number of manuscripts in all the disciples of dentistry, from researches all over the world. Key words:Publication trends, Journal of Clinical and Experimental Dentistry, Bibliometrics.
Collapse
Affiliation(s)
- Vidhi-Kiran Bhalla
- Senior Lecturer, Department of Conservative Dentistry and Endodontics ITS centre for dental studies and Reasearch, Ghaziabad, Uttar Pradesh
| | - Sherin-Jose Chockattu
- Senior Lecturer ,Department of Conservative and Endodontics , Bapuji Dental College and Hospital, Davangere, Karnataka
| |
Collapse
|
6
|
Rizqiawan A, Zahratur-Rasyida A, Mulyawan I. Transoral surgical approach to solitary fibrous tumors in buccal space with infratemporal tumor extension: A case report. J Clin Exp Dent 2020; 12:e93-e97. [PMID: 31976050 DOI: 10.4317/medoral.55736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 11/04/2019] [Indexed: 11/05/2022] Open
Abstract
A solitary fibrous tumour (SFT) is a rare spindle-cell neoplasm of mesenchymal origin usually located in the pleura. It has been recently described as occurring in various head and neck sites, including the oral cavity. The purpose of this article is to report a case of SFT originating in the buccal space and extending into the infratemporal space treated by means of transoral approach surgery. A 25-year-old female patient reported to the Department of Oral and Maxillofacial Surgery, Universitas Airlangga Hospital, chiefly complaining of a painless lump in the left cheek which had been present for nine months. The diagnosis was arrived at on the basis of a combination of clinical investigation, imaging studies and histopathological examination (biopsy). The surgical approach involved transoral incision through the buccal mucosa. An SFT of buccal space may extend to nearby structures producing the anatomical challenge of removal through a transoral approach. Excisional biopsy involving a transoral approach is, nevertheless, considered appropriate because it produces an attractive aesthetic appearance, reduces morbidity from nerve/ vascular/ gland injury and promotes more effective healing. Key words:Solitary fibrous tumor, buccal space, infratemporal space, transoral approach.
Collapse
Affiliation(s)
- Andra Rizqiawan
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Universitas Airlangga
| | | | - Indra Mulyawan
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Universitas Airlangga
| |
Collapse
|
7
|
Jiang L, Hu C, Chen L, Chen L. Diagnosis of solitary fibrous tumor in the submandibular gland: Case report and literature review. JOURNAL OF CLINICAL ULTRASOUND : JCU 2019; 47:486-489. [PMID: 31364769 DOI: 10.1002/jcu.22760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 07/03/2019] [Accepted: 07/09/2019] [Indexed: 06/10/2023]
Abstract
Solitary fibrous tumors (SFTs) rarely occur in the head and neck area. Imaging findings are nonspecific, and immunohistochemical (IHC) analysis is necessary for a definitive diagnosis. We report the case of a patient with a mass in the submandibular region that was initially diagnosed as basal cell adenoma. After excision and IHC examinations, a SFT was diagnosed.
Collapse
Affiliation(s)
- Liping Jiang
- Department of Ultrasonography, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Cai Hu
- Department of Ultrasonography, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Li Chen
- Department of Ultrasonography, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lu Chen
- Department of Ultrasonography, First Affiliated Hospital of Nanchang University, Nanchang, China
| |
Collapse
|
8
|
Lim DWJ, Tan TSH, Tan JL, Venkateswaran K. Solitary fibrous tumour of the parotid gland: a case report and a 15-year literature review. AME Case Rep 2019; 3:14. [PMID: 31231715 DOI: 10.21037/acr.2019.04.05] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 04/12/2019] [Indexed: 11/06/2022]
Abstract
Solitary fibrous tumour (SFT) is uncommonly found in the salivary glands and is a rare group of spindle-cell tumours. A review of literature revealed only 40 reported cases of SFT of major salivary glands over a 15-year period from 2004 to 2018. SFTs of the salivary glands are usually benign, although rarely, can be aggressive and may sometimes recur after initial resection. Histology and Immunohistochemistry are the most important criteria to distinguish SFT from other head and neck tumours. SFTs strongly stain for CD34 and hence is the most frequently used stain for diagnosis. All reported SFT cases with available information on immunohistochemical stains were positive for CD34. Recently, immunohistochemistry for STAT6 has been introduced as a surrogate diagnostic marker for SFT that is highly sensitive and specific. We report a case of a 51-year-old Chinese gentleman who presents with a 3-month history of a left parotid tumour that required a subtotal parotidectomy for complete excision. It was diagnosed as SFT based on histology and immunohistochemical features. He was followed-up for 3 months post-operatively with no clinical evidence of recurrence. This case proposes that, although rare, SFT should be considered in the differential diagnosis of soft-tissue tumors in the major salivary glands. An awareness of this rare entity will help clinicians and pathologists better manage similar patients in the future.
Collapse
Affiliation(s)
| | | | - Jian Li Tan
- Department of Otolaryngology, Khoo Teck Puat Hospital, Singapore
| | | |
Collapse
|
9
|
Lee CK, Liu KL, Huang SK. A dedifferentiated solitary fibrous tumor of the parotid gland: a case report with Cytopathologic findings and review of the literature. Diagn Pathol 2019; 14:20. [PMID: 30777087 PMCID: PMC6379935 DOI: 10.1186/s13000-019-0792-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 02/01/2019] [Indexed: 12/19/2022] Open
Abstract
Background Solitary fibrous tumor (SFT) is a ubiquitous mesenchymal neoplasm but it rarely occurs in the parotid gland. The histological features are variable, with the majority having spindle cell morphology and non-specific branching (staghorn) ecstatic vascular pattern. SFT ranges from benign to overtly malignant. Dedifferentiation within SFTs represents an abrupt transition from a well-differentiated component to a high-grade area, the latter most often including poorly differentiated epithelioid/round cell or high-grade spindle cell morphology. To the best of our knowledge, dedifferentiated SFT in the parotid gland has not been previously reported. Case presentation A 33-year-old woman presented with a soft tissue tumor in the right parotid gland that had been present for 6 months. Fine needle aspiration (FNA) cytology indicated epithelioid morphology in the dedifferentiated component of the tumor, along with metachromatic myxoid matrix. The tumor was initially interpreted as a salivary gland neoplasm of uncertain malignant potential (SUMP).Right partial parotidectomy was performed, and microscopic examination of the resected specimen revealed a malignant spindle cell tumor with a central epithelioid/anaplastic component. The tumor cells were diffusely positive for CD34, STAT-6 and FLI-1, and negative for pan-cytokeratin, CAM5.2, p63, S100 protein, CD31, SMA, and calponin.ERG and Ki67 immunostaining showed an accentuated nuclear staining pattern in the central dedifferentiated area. There was no overexpression of p53 or p16. The patient is currently undergoing regular follow-up and is 11 months postresection with no evidence of recurrence or distant metastasis. Conclusions Unlike the typical spindle cell morphology of conventional SFTs, malignant SFTs can show areas of dedifferentiation mimicking an epithelial neoplasm. FNA of dedifferentiated SFTs of the parotid gland may show, a combination of atypical epithelioid cells and metachromatic myxoid/collagenous matrix, which is a less emphasized cytological feature of SFT and may lead to misdiagnosis as a more common parotid gland epithelial neoplasm.
Collapse
Affiliation(s)
- Chien-Kuan Lee
- Department of Pathology, Kung Tien General Hospital, Shalu, Taichung, Taiwan
| | - Ken-Liao Liu
- Department of Otorhinolaryngology, Kung Tien General Hospital, Shalu, Taichung, Taiwan.
| | - Sheng-Kai Huang
- Department of Otorhinolaryngology, Kung Tien General Hospital, Shalu, Taichung, Taiwan
| |
Collapse
|
10
|
A New Primary in Parotid Gland with History of Treated Mediastinal Solitary Fibrous Tumour. Case Rep Surg 2019; 2019:3234692. [PMID: 30723568 PMCID: PMC6339743 DOI: 10.1155/2019/3234692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 12/04/2018] [Indexed: 11/21/2022] Open
Abstract
Solitary fibrous tumours (SFTs) are rare tumours in the head and neck region. They have been reported in many anatomic sites but occurrence in the parotid gland is exceptional. We report a very rare finding of a benign SFT of the parotid gland in a patient with a past history of excision of a malignant type of mediastinal tumour. It is important that clinicians are aware of the possible existence of SFT in the parotid as a synchronous lesion or occurrence of the same disease later on elsewhere when SFT is diagnosed at one anatomical site. This case report illustrates that regular clinical and imaging follow-up is essential in SFTs to look for the appearance of new lesions in the other anatomic site.
Collapse
|
11
|
Rais M, Kessab A, Sayad Z, El Mourabit S, Zrarqi R, Benazzou S, Boulaadas M, Cherradi N. Solitary fibrous tumor occurring in the parotid gland: a case report. BMC Clin Pathol 2017; 17:22. [PMID: 29200960 PMCID: PMC5697096 DOI: 10.1186/s12907-017-0062-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/13/2017] [Indexed: 11/29/2022] Open
Abstract
Background Solitary fibrous tumor is an uncommon spindle cell neoplasm of unknown origin. It has been reported in many anatomic sites, with a rare occurrence in the head and neck region. Solitary fibrous tumors of the parotid gland are exceptional; their clinical and radiologic features are non specific, often mimicking more common salivary gland tumors. Pathologic examination and immunohistochemistry are required to make the correct diagnosis. The prognosis is favorable, with most tumors being benign, and complete surgical resection is the treatment of choice. Case presentation We report the case of a 42-year-old man who presented with a painless mass involving the parotid gland. A parotidectomy was performed, and follow up was unremarkable. Gross examination showed a well circumscribed, firm tumor measuring 3,4 cm. Histologically, the tumor was composed of a spindle cell proliferation of variable cellularity, with staghorn vessels. A panel of immunohistochemical stains was performed, and confirmed the diagnosis of parotid gland solitary fibrous tumor. Conclusion In this report we aim to increase awareness of this rare entity among clinicians and pathologists, and to emphasize the role of immunohistochemistry in confirming the diagnosis.
Collapse
Affiliation(s)
- Meryem Rais
- Department of Pathology, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| | - Amine Kessab
- Department of Pathology, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| | - Zahra Sayad
- Department of Plastic and Maxillofacial Surgery, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| | - Sanae El Mourabit
- Department of Plastic and Maxillofacial Surgery, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| | - Redallah Zrarqi
- Department of Plastic and Maxillofacial Surgery, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| | - Salma Benazzou
- Department of Plastic and Maxillofacial Surgery, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| | - Malik Boulaadas
- Department of Plastic and Maxillofacial Surgery, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| | - Nadia Cherradi
- Department of Pathology, Hospital of Specialities, Rabat, Morocco.,Faculty of Medicine and Pharmacy of Rabat, Mohammed V University in Rabat, Rabat, Morocco
| |
Collapse
|
12
|
Lotfi A, Mokhtari S, Moshref M, Shahla M, Atarbashi Moghadam S. Solitary Fibrous Tumor of Retromolar Pad; a Rare Challenging Case. JOURNAL OF DENTISTRY (SHIRAZ, IRAN) 2017; 18:149-152. [PMID: 28620640 PMCID: PMC5463772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Solitary fibrous tumor has a wide spectrum of histopathologic features and many tumors show similar microscopic features. This similarity poses diagnostic challenges to the pathologists and immunohistochemical analysis is required in many cases. Moreover, it is a rare entity in orofacial region which consequently would make its diagnosis more challenging in oral cavity. The knowledge of various microscopic patterns of this tumor contributes to a proper diagnosis and prevents unnecessary treatment. This study reports a case of solitary fibrous tumor in the retromolar pad area and discusses its various histological features and differential diagnoses.
Collapse
Affiliation(s)
- Ali Lotfi
- Dept. of Oral and Maxillofacial Pathology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | - Mohammad Moshref
- Dept. of Oral and Maxillofacial Pathology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | - Saede Atarbashi Moghadam
- Dept. of Oral and Maxillofacial Pathology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
13
|
An Unusual Clinical Presentation of Solitary Fibrous Tumor in the Oral Cavity. Case Rep Pathol 2017; 2017:4395049. [PMID: 28326216 PMCID: PMC5343232 DOI: 10.1155/2017/4395049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/13/2017] [Indexed: 11/18/2022] Open
Abstract
Solitary fibrous tumor is a rare neoplasm of mesenchymal origin that usually affects the pleura. This rarity becomes more relevant in the oral cavity since the clinical features are nonspecific. A 66-year-old female patient presented with a 3-month history of a swelling in the floor of the mouth, measuring 2 cm in greatest diameter, and pain symptomatology. Occlusal and panoramic radiographs showed no bone involvement. Ultrasonography of the submandibular and parotid salivary glands revealed normal morphology, dimensions, and echogenicity. During this exam, a nodular image of low echogenicity measuring about 2.7 × 1.8 cm was detected. An excisional biopsy was performed and histopathological analysis revealed a well-defined tumor-like lesion with alternation between hypercellular areas without a defined pattern and hypocellular areas. On immunohistochemistry, the tumor was positive for CD34 and CD99 and negative for α-SMA, S-100, and bcl-2. Combining the histopathological and immunohistochemical features, the diagnosis was solitary fibrous tumor. The patient is under periodical clinical follow-up and shows no signs of recurrence 7 months after surgical excision of the tumor. The combination of clinical-pathological and immunohistochemical features is necessary for the diagnosis.
Collapse
|
14
|
Heera R, Chandran MR, Padmakumar SK, Rajeev R. Solitary fibrous tumor of maxilla: A rare entity. J Oral Maxillofac Pathol 2016; 20:532-535. [PMID: 27721623 PMCID: PMC5051306 DOI: 10.4103/0973-029x.190960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Solitary fibrous tumor (SFT) is a ubiquitous rare mesenchymal neoplasm. Pleura is the favored site of origin and is rare in the oral cavity. SFT occurs across a wide histopathologic spectrum. Fibrous form characterized by hyalinized, thick-walled vessels with opened lumina and strong CD34 reactivity constitute one end and on the other end, a cellular form representing the conventional hemangiopericytoma, with branched, thin-walled vessels and focal or negative CD34 reactivity characterize the spectrum. A case of oral SFT in a 30-year-old female patient with its clinical, histopathological and immunohistochemical features is being presented here.
Collapse
Affiliation(s)
- R Heera
- Department of Oral Pathology and Microbiology, Government Dental College, Trivandrum, Kerala, India
| | - M Renu Chandran
- Department of Oral Pathology and Microbiology, Government Dental College, Trivandrum, Kerala, India
| | - S K Padmakumar
- Department of Oral Pathology and Microbiology, Government Dental College, Trivandrum, Kerala, India
| | - R Rajeev
- Department of Oral Pathology and Microbiology, Government Dental College, Trivandrum, Kerala, India
| |
Collapse
|
15
|
Yu R, Rebello R. Solitary Fibrous Tumor of the Parotid Gland: A Case Report. IRANIAN JOURNAL OF OTORHINOLARYNGOLOGY 2015; 27:401-5. [PMID: 26568946 PMCID: PMC4639695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Solitary fibrous tumor is a rare, mesenchymal neoplasm that has been reported in numerous sites. Occurrence in the parotid gland is exceedingly rare. CASE REPORT A 53-year-old man with a 2 cm solitary fibrous tumor of the left parotid gland, that was observed clinically and operatively and thought to be a neoplasm arising from Stensen's duct, is described. A pre-operative CT scan demonstrated a well-circumscribed, solid, avidly-enhancing nodule superficial to the masseter muscle, deep to the platysma, and intimately associated with the parotid duct. Multiple fine needle aspirations yielded scant fibrous tissue and lymphocytes. A superficial parotidectomy was performed. The histopathological and immunohistochemical findings were in keeping with solitary fibrous tumor, fibrous variant, with a low mitotic rate and a peripherally-entrapped parotid duct surrounded by abundant periductal collagen and lymphocytes. At a 2-year follow up, there was no evidence of tumor recurrence or metastasis. CONCLUSION Solitary fibrous tumor should be suspected in the context of a slow-growing, well-circumscribed, solid, avidly-enhancing nodule of the parotid gland. Grossly intimate association with the parotid duct may reflect peripheral entrapment. Fine needle aspirations that predominantly yield collagen without spindle cell clusters should be correlated with clinical and radiological findings, as it is expected in tumor sampling of the fibrous variant. Although solitary fibrous tumor of the parotid gland usually exhibits benign behavior, it is best regarded as potentially malignant. Patient management and follow-up should be tailored to each individual and clinicopathological risk assessment of the recurrent/metastatic potential.
Collapse
Affiliation(s)
- Ryan Yu
- Corresponding Author: Department of Pathology and Molecular Medicine, HSC-2N10 1280 Main Street West Hamilton, ON, Ontario, Canada. Tel: 1-905-521-2100, E-mail:
| | - Ryan Rebello
- Department of Radiology, McMaster University, St. Joseph’s Hospital, Hamilton, Ontario, Canada.
| |
Collapse
|
16
|
Solitary Fibrous Tumour of the Parotid Gland: A Case Report and Review of the Literature. Case Rep Otolaryngol 2015; 2015:741685. [PMID: 26236526 PMCID: PMC4506909 DOI: 10.1155/2015/741685] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 06/25/2015] [Indexed: 12/13/2022] Open
Abstract
Introduction. Solitary fibrous tumours (SFT) of the parotid gland are a very rare group of spindle-cell tumours with only 28 cases reported in the literature. This review aims to report an additional case of parotid SFT and provide a review of all reported cases of this rare condition. Case Presentation. A 26-year-old male presented a 3 cm well-demarcated, slowly enlarging mass which was completely excised, revealing histological and immunohistochemical features of SFT. Discussion. Reviews of all reported cases suggest that histology and immunohistochemistry are paramount in the diagnosis of SFT. These features, along with clinical presentation and management of this rare condition, will be discussed.
Collapse
|