1
|
Wei B, Liu G, Li K, Quan H. Pediatric upper lip myopericytoma: a case report and comprehensive review. BMC Oral Health 2024; 24:478. [PMID: 38643070 PMCID: PMC11031849 DOI: 10.1186/s12903-024-04106-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 03/05/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND Myopericytoma is a rare spindle cell tumor of mesenchymal origin, typically benign, characterized by concentric proliferation of tumor cells around blood vessels within subcutaneous tissue. It primarily occurs in middle-aged adults and is often located in distal extremities, although cases have been reported in proximal extremities and head-neck regions. However, occurrences within the oral cavity are exceedingly rare. To date, literature reviews have identified only two cases in children under 10 years old and reported only five cases of myopericytoma occurring in the lip region. We provide a comprehensive review and analysis of all documented cases to better understand this condition. CASE PRESENTATION A 7-year-old girl presented to oral and maxillofacial surgery with the discovery of a painless mass on the inner aspect of the upper lip. The diagnosis of myopericytoma was confirmed by histological examination (HE staining), alcian blue staining, and immunohistochemistry. CONCLUSIONS Following surgical excision, there were no signs of recurrence at a 3-month follow-up. The pathological diagnosis of myopericytoma is quite challenging, and immunohistochemical testing is necessary.
Collapse
Affiliation(s)
- Bin Wei
- Department of Oral and Maxillofacial Surgery, Xiangya Stomatological Hospital & School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China
| | - Gui Liu
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China
- Department of Oral Pathology, Xiangya Stomatological Hospital & School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China
| | - Kun Li
- Department of Oral and Maxillofacial Surgery, Xiangya Stomatological Hospital & School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China
| | - Hongzhi Quan
- Department of Oral and Maxillofacial Surgery, Xiangya Stomatological Hospital & School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China.
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, P.R. China.
| |
Collapse
|
2
|
Alqassab AT, Alsadah FZ, Elsharkawy T, Alhamad M, Alsayed H. Ankle Myopericytoma: A Rare Case Report and Cytogenetic Study. Cureus 2022; 14:e21307. [PMID: 35186568 PMCID: PMC8849462 DOI: 10.7759/cureus.21307] [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] [Accepted: 01/16/2022] [Indexed: 11/17/2022] Open
Abstract
Myopericytoma (MPC) is an uncommon benign neoplasm of the skin and soft tissues belonging to a spectrum of tumors that are histologically recognized by their distinctive perivascular myoid cell differentiation. These distinct tumors are more prevalent among middle-aged males, and they arise more frequently in the subcutaneous tissue of the four extremities. In this paper, myopericytoma is reported in a 59-year-old Saudi male, presented with a painless small cyst involving the left ankle suspected clinically to be a ganglion cyst. Following surgical excision of the cyst, the diagnosis of myopericytoma was made based on the histopathological pattern of the disease. This paper focuses on the clinical and histopathological findings of myopericytoma and emphasizes the importance of immunohistochemistry as well as molecular testing in reaching the final diagnosis.
Collapse
|
3
|
Roig NJ, Wu M, Hernandez O, Liu CZ, Brandler TC. Myopericytoma of the Parotid and Molecular Profiling: Report of a Rare Case and Review of the Literature. Int J Surg Pathol 2021; 30:574-580. [PMID: 34970937 DOI: 10.1177/10668969211070167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Myopericytomas are uncommon tumors defined by their round to spindle shaped cells often arranged in a concentric pattern of perivascular growth. They are typically well-circumscribed, nodular, slow-growing lesions that occur in the soft tissue of the extremities. Here, we present a 30-year-old female with a 2.4 cm myopericytoma occurring in the deep lobe of the parotid gland. The diagnosis was made with detailed histopathologic and immunohistochemical findings and positive identification of the specific mutation for PDGFRβ p.Asp666Lys by next generation sequencing (NGS). This is the first case report of a parotid myopericytoma with a genetic testing that shows a particular mutation that has been linked to myopericytomatosis.
Collapse
Affiliation(s)
- Nicholas J Roig
- 12296New York University Grossman School of Medicine, NYU Langone Health, New York, New York, USA
| | - Michelle Wu
- 12272University of Missouri-Kansas City School of Medicine, New York, New York, USA
| | - Osvaldo Hernandez
- 12296New York University Grossman School of Medicine, NYU Langone Health, New York, New York, USA
| | - Cheng Z Liu
- 12296New York University Grossman School of Medicine, NYU Langone Health, New York, New York, USA
| | - Tamar C Brandler
- 12296New York University Grossman School of Medicine, NYU Langone Health, New York, New York, USA
| |
Collapse
|
4
|
Alhujayri AK, Alsugair SI, Al Mishal O. Fast growing myopericytoma of the hand: Case report and literature review. Int J Surg Case Rep 2021; 85:106220. [PMID: 34298419 PMCID: PMC8322303 DOI: 10.1016/j.ijscr.2021.106220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/15/2021] [Accepted: 07/15/2021] [Indexed: 11/21/2022] Open
Abstract
Introduction and importance Myopericytoma (MPC) is a rare benign soft tissue neoplasm that arises from perivascular smooth muscle-like myoid cells that share features of both glomus and smooth muscle cells. It usually slow growing solitary tumor that might mimic aggressive sarcoma. Case presentation 45 years old male, with unremarkable medical history, presented with fast growing mass on the left 1st webspace that was noticed 6 months prior to presentation. Investigations with US and MRI showed highly vascular solid mass that was worrisome for malignant lesion. Surgical excision was done and histopathology confirmed the diagnosis of myopericytoma. Clinical discussion MPC is a rare perivascular neoplasm that’s reported mainly in the extremities with lower limbs are most affected sites. Usually it presents as solid painless slowly growing mass. However, Multiple papers reported different rare presentations like multiple, painful and some with malignant transformation. Conclusion MPC is a benign tumor that might mimic aggressive sarcoma. Such cases should be approached with high suspicion and proper investigation and management should be followed promptly. Myopericytoma (MPC) is a rare benign soft tissue neoplasm. It usually slow growing solitary tumor that might mimic aggressive sarcoma. It occurs mainly in the extremities with lower limbs are most affected sites. High suspicion and proper investigation and management to achieve proper diagnosis
Collapse
Affiliation(s)
| | - Sulaiman I Alsugair
- King Abdulaziz Medical City - NGHA, P.O. Box 22490, Riyadh 11426, Saudi Arabia
| | - Obaid Al Mishal
- King Abdulaziz Medical City - NGHA, P.O. Box 22490, Riyadh 11426, Saudi Arabia
| |
Collapse
|
5
|
Pan Y, Chen L, Shi D, Chen Y, Yu RS. Imaging features of myopericytoma arising from the parotid gland: Report of 2 cases and literature review. Medicine (Baltimore) 2021; 100:e25471. [PMID: 33832162 PMCID: PMC8036096 DOI: 10.1097/md.0000000000025471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/18/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE Myopericytoma of the parotid gland is a rare condition of which preoperative definitive diagnosis is relatively challenging. The purpose of this case report is to highlight the radiologic features of myopericytoma of parotid gland. PATIENT CONCERNS A 62-year-old man presented with a history of a walnut-size mass in left parotid gland when yawned for half-month, and a 48-year-old woman complaint about a grape-size, painless mass behind the right ear for a month. DIAGNOSES Radiological examinations suggested that both lesions were cyst-solid mixed lesions with relatively smoothed margins, with or without significant enhancement while the lesion without enhancement had a hemorrhage. Then a diagnosis of benign tumor arising from the parotid gland was made. Final diagnosis of myopericytoma was confirmed by histopathological and immunohistochemical examinations after surgical resection. INTERVENTIONS Both patients underwent excision of the tumor and the superficial parotidectomy with facial nerve preservation. OUTCOMES Both patients recovered without any intraoperative or postoperative complication and had no signs of recurrence during a 17-month and 5-year follow-up. LESSONS Parotid gland myopericytoma is an exceedingly rare tumor which diagnosis can be challenging, and this is the first published report specifying the magnetic resonance features of the disease.
Collapse
Affiliation(s)
- Yao Pan
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Jiefang Road 88#, Hangzhou 310009
| | - Lu Chen
- Department of Radiology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangcheng Avenue N1#, Yiwu 322000, China
| | - Dan Shi
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Jiefang Road 88#, Hangzhou 310009
| | - Ying Chen
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Jiefang Road 88#, Hangzhou 310009
| | - Ri-Sheng Yu
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Jiefang Road 88#, Hangzhou 310009
| |
Collapse
|
6
|
Porat Ben Amy D, Yaffe V, Kawar R, Akrish S, Abu El-Naaj I. Oral myopericytoma: a rare pediatric case report and a review of the literature. BMC Oral Health 2021; 21:176. [PMID: 33827713 PMCID: PMC8028720 DOI: 10.1186/s12903-021-01534-y] [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: 10/24/2020] [Accepted: 03/23/2021] [Indexed: 12/02/2022] Open
Abstract
Background Myopericytoma is a rare mesenchymal neoplasm with perivascular myoid differentiation that arises most commonly in middle adulthood. The lesion generally involves the subcutaneous tissue of distal extremities. Myopericytoma of the oral cavity is extremely rare. Herein we report a case of oral myopericytoma in a pediatric patient, who was treated via a conservative approach with a follow up of 8 years. The case is followed by a literature review. To our knowledge this is the first documented case of oral myopericytoma affecting a patient of such a young age.
Case presentation A 6 years old boy was referred to the maxillofacial surgery department for the evaluation of a solitary growth of the right maxillary buccal and palatal gingiva. Histology and immunohistochemistry confirmed the diagnosis of myopericytoma. Conclusions Our patient was treated by local excision with no recurrence in 8 years of follow up. Conservative approach should be considered for the treatment oral myopericytoma especially in young patients in tooth bearing areas.
Collapse
Affiliation(s)
- Dalit Porat Ben Amy
- Oral Medicine Unit, Baruch Padeh Medical Center, 15208, Poriya, Lower Galilee, Israel. .,The Azrieli Faculty of Medicine in the Galilee, Bar Ilan University, 1311502, Safed, Israel.
| | - Victoria Yaffe
- Department of Oral and Maxillofacial Surgery, Baruch Padeh Medical Center, 15208, Poriya, Lower Galilee, Israel
| | - Rawan Kawar
- Department of Periodontology and Oral Implantology, School of Dental Medicine, Tel Aviv University, Tel-Aviv, Israel
| | - Sharon Akrish
- Department of Oral and Maxillofacial Surgery, Rambam Medical Center, Haifa, Israel.,Department of Pathology, Rambam Medical Center, Haifa, Israel.,Technion School of Medicine, Haifa, Israel
| | - Imad Abu El-Naaj
- Department of Oral and Maxillofacial Surgery, Baruch Padeh Medical Center, 15208, Poriya, Lower Galilee, Israel.,The Azrieli Faculty of Medicine in the Galilee, Bar Ilan University, 1311502, Safed, Israel
| |
Collapse
|
7
|
Ju WT, Zhao TC, Liu Y, Dong MJ, Wang LZ, Li J, Tan YR, Zhong LP. Clinical and pathologic analysis of myopericytoma in the oral and maxillofacial region. Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 128:393-399. [PMID: 31350225 DOI: 10.1016/j.oooo.2019.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/27/2019] [Accepted: 06/05/2019] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The aim of this study was to analyze myopericytoma in the oral and maxillofacial region in terms of clinical appearance, diagnosis, treatment, and outcomes. STUDY DESIGN Data on 5 new patients with myopericytoma in the oral and maxillofacial region treated at our department were collected and analyzed. RESULTS There were 2 males and 3 females (age range 10-62 years; mean age 43.8 years). All of the 5 patients presented with masses showing benign biologic behavior. Imaging examinations with use of computed tomography or magnetic resonance imaging showed heterogeneous regions with internal contrast-enhancement or cystic change in 3 cases. All of the patients underwent surgery. Histologic examination showed a broad morphologic spectrum characterized by concentric and perivascular growth of ovoid, plump spindled, and/or round myoid tumor cells. Immunohistochemical examination showed positive staining for vimentin and smooth muscle actin, and negative for CD34 and desmin. During the follow-up period (8-56 months), there was no tumor recurrence. CONCLUSIONS Myopericytoma in the oral and maxillofacial region always exhibits benign biologic behavior and a heterogeneous region with internal contrast-enhancement or cystic change on imaging examinations. Surgery is the first choice of treatment and results in good clinical outcomes.
Collapse
Affiliation(s)
- Wu-Tong Ju
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Tong-Chao Zhao
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Ying Liu
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Min-Jun Dong
- Department of Radiology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Li-Zhen Wang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
| | - Jiang Li
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yi-Ran Tan
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
| | - Lai-Ping Zhong
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| |
Collapse
|
8
|
Muro Bushart N, Tharun L, Oheim R, Paech A, Kiene J. Tumorinduzierte Osteomalazie, verursacht durch ein FGF23-sezernierendes Myoperizytom. DER ORTHOPADE 2019; 49:1-9. [DOI: 10.1007/s00132-019-03719-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
9
|
Myopericytoma/myopericytomatosis of the lower extremity in two young patients: a recently designated rare soft tissue neoplasm. Radiol Case Rep 2017; 13:275-280. [PMID: 29552265 PMCID: PMC5851063 DOI: 10.1016/j.radcr.2017.10.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/08/2017] [Accepted: 10/08/2017] [Indexed: 11/30/2022] Open
Abstract
Myopericytomas are rare, slow-growing benign perivascular tumors most commonly arising within the superficial subcutaneous soft tissues of the lower extremity. They represent one of several related perivascular tumors of myoid lineage with similar morphology and shared immunohistochemical profile including positive staining for smooth muscle actin. Histologically, myopericytoma exhibit concentric, perivascular proliferation of spindled myoid cells with bland elongated nuclei and associated blood vessels. A solitary well-demarcated nodule or mass is typically referred to as myopericytoma, whereas an infiltrative multinodular lesion has more recently been termed myopericytomatosis. At magnetic resonance imaging, tumors are most commonly superficial, may be well-defined (myopericytoma) or ill-defined (myopericytomatosis), and demonstrate highly vascularized, avidly enhancing soft tissue often with areas of internal hemorrhage. We report 2 cases involving the lower extremity (1 myopericytoma and 1 myopericytomatosis) occurring in young patients, focusing on the clinical, histopathologic, and radiologic characteristics of this relatively new distinct entity.
Collapse
|
10
|
Bates AS, Craig P, Knepil GJ. Myopericytoma of the parotid region treated by extracapsular dissection. BMJ Case Rep 2014; 2014:bcr-2013-201924. [PMID: 24717593 DOI: 10.1136/bcr-2013-201924] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Myopericytoma (MPC) is a vascular neoplasm exhibiting differentiation towards perivascular cells. Variable cytoarchitechtural features are visible within MPC, and there is much overlap between MPC, myofibroma and glomus tumours. MPC have a local recurrence rate of 10-20% and malignancy has been described in a few published cases. Previously, superficial parotidectomy has been recommended for MPC but, in this case, the surgical approach was via extracapsular dissection (ECD). A 66-year-old Caucasian man presented with a palpable mass arising from the superficial lobe of the right parotid gland. Following removal by ECD, the histopathological diagnosis of MPC was made. This is the first published report describing ECD of MPC associated with the parotid gland. ECD is preferable to superficial parotidectomy for small superficial lesions such as MPC, with similar oncological outcomes and fewer functional and aesthetic complications.
Collapse
|
11
|
Myopericytoma of the external auditory canal and tragus. The Journal of Laryngology & Otology 2013; 127:805-8. [DOI: 10.1017/s0022215113001357] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractBackground:Myopericytoma is a relatively recently described skin and soft tissue tumour that demonstrates perivascular myoid cell or pericytic differentiation. Whilst the range of anatomical locations has expanded to include visceral locations, head and neck myopericytomas are rarely documented. There have been no previous reports of aural myopericytoma.Case report:This paper reports the clinicopathological features of a biopsy-proven, slow-growing, 20 × 20 mm, polypoid myopericytoma that involved the external auditory canal and tragus in an 18-year-old woman. Excision was curative.Conclusion:Heightened clinicopathological awareness of the expanding anatomical distribution of myopericytoma is critical to its diagnosis when it presents in unusual and novel locations. Myopericytoma should be added to the range of external auditory canal neoplasms, especially those characterised by an admixture of spindle cells and a prominence of blood vessels, including those with a haemangiopericytomatous pattern.
Collapse
|
12
|
Multiple myopericytoma of the face and parotid gland. Arch Plast Surg 2012; 39:158-61. [PMID: 22783517 PMCID: PMC3385312 DOI: 10.5999/aps.2012.39.2.158] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2011] [Revised: 11/01/2011] [Accepted: 11/02/2011] [Indexed: 11/24/2022] Open
Abstract
Myopericytoma is a benign tumor that is composed of myoid-appearing oval to spindle-shaped cells with a concentric perivascular pattern of growth. The tumor is morphologically heterogeneous and can exhibit a broad histologic spectrum. We describe a case of multiple myopericytoma occurring in the head and neck skin region with involvement of the parotid gland where it is known to occur very rarely. A 40-year-old woman noticed multiple enlarging, painless, round-shaped masses on her left cheek. The patient had experienced a similar lesion of the same area 8 years earlier which was completely excised and the pathological diagnosis was spindle cell type myoepithelioma. On a computed tomographic image, one mass involved the superficial parotid gland and was well encapsulated. Excision of the facial masses and superficial parotidectomy with facial nerve preservation were performed. A diagnosis of myopericytoma was established in light of the immunohistochemical pattern with the histopathological findings. Over the 4-year follow-up period, there was no evidence of recurrence. As many perivascular myoid neoplasms share common morphologic features with myopericytoma, we should consider the differential diagnosis, and confirm the histological findings with appropriate immunohistochemical staining. After identifying myopericytoma, it should be treated with wide surgical excision to prevent local recurrence.
Collapse
|