Peripheral ameloblastoma

  • 文章类型: Case Reports
    外周成釉细胞瘤(PA)被认为是成釉细胞瘤的最罕见变体,仅在孤立的病例报告中有所描述。PA通常局限于牙齿支撑组织周围的软组织。尽管它表现出非攻击性行为,并且可以通过局部手术切除完全切除治疗,必须进行长期随访以防止将来复发和可能的恶变.
    Peripheral ameloblastoma (PA) is believed to be the rarest variant of ameloblastoma and only has been described in isolated case reports. PA is usually confined to the soft tissues surrounding the supporting tissues of the teeth. Although it manifests nonaggressive behavior and can be treated with complete removal by local surgical excision, long term follow up is mandatory to prevent future recurrence and possible malignant transformation.
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  • 文章类型: Case Reports
    未经证实:外周成釉细胞瘤(PA)的发生很少见。二极管激光对PA的切除是不常见的。
    UNASSIGNED:一名27岁女性患者在过去一年中出现无症状的后磨牙三角区肿块。
    未经证实:穿刺活检显示PA侵袭性。
    UNASSIGNED:在局部麻醉下使用二极管激光切除病灶。切除的标本显示了PA棘皮瘤变体的组织病理学特征。
    UNASSIGNED:患者随访两年,无任何复发证据。
    UASSIGNED:二极管激光是传统手术刀切除口腔内软组织病变的一种可接受的替代方法,然而,在PA的情况下,事实证明也不例外。
    UNASSIGNED: Occurrence of peripheral ameloblastoma (PA) is rare. Excision of PA by diode laser is infrequent.
    UNASSIGNED: A 27-year-old female patient presented with an asymptomatic mass on the retromolar trigone for the past one year.
    UNASSIGNED: Incisional biopsy showed aggressive PA.
    UNASSIGNED: The lesion was excised using a diode laser under local anaesthesia. The excised specimen revealed histopathological features of the acanthomatous variant of PA.
    UNASSIGNED: The patient was followed up for two years without any evidence of recurrence.
    UNASSIGNED: Diode laser is an acceptable alternative to conventional scalpel excision for intraoral soft tissue lesions, whereas, in the case of PA, it proves to be no exception.
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  • 文章类型: Case Reports
    成釉细胞瘤是相当常见的牙源性肿瘤,它们可以是骨内或牙龈周围的,这是罕见的发现骨内成釉细胞瘤与牙龈延伸。这里,我们报告了一个40岁的妇女,她在46颗牙齿的牙龈水平出现了外生性牙龈病变,该牙齿在咨询前01年因疼痛而被拔除。临床和放射学检查显示同一区域存在两个肿瘤。患者受益于牙龈肿瘤的切除和骨内肿瘤的摘除。组织病理学和免疫组织化学检查显示,各自的肿瘤是梭形细胞上皮和不同起源的腔内单囊性成釉细胞瘤,留下问题,寻找这两种肿瘤之间的关系。在手术治疗后的12个月随访期间,术后病程顺利。
    Ameloblastomas are quite frequent odontogenic tumors, they can be intraosseous or peripheral to the gum, it\'s rare to find an intraosseous ameloblastoma with gingival extension. Here, we report the case of a 40 years old woman who presented with an exophytic gingival lesion at the gum level of the 46 tooth that was extracted at a quack 01 years before her consultation due to pain in this area. Clinical and radiological examination revealed the presence of two tumors in the same area. The patient benefited from an excision of her gingival tumor and an enucleation of her intraosseous tumor. Histopathological and immunohistochemical examinations revealed that the respective tumors were a spindle cell epulis and an intraluminal unicystic ameloblastoma of different origins, leaving the question and search for the relationship between these two tumors. The postoperative course was uneventful during the 12-month follow-up period after surgical treatment.
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  • 文章类型: Case Reports
    鳞状牙源性肿瘤(SOT)是一种罕见的良性肿瘤,可能位于口腔的多个部位。根据文献,报告病例<50例。肿瘤通常无症状,尽管它可以出现疼痛和牙齿活动的症状。外周牙源性肿瘤是一种罕见的实体,源自牙齿形成装置的上皮或间充质部分。病变常见于牙龈和肺泡粘膜。外周颗粒细胞成釉细胞瘤(GCA)被认为更为罕见。该研究的目的是报告一例与下颌骨囊性外周GCA同步相关的SOT。根据文献检索,尚未报道SOT伴成釉细胞瘤的发生。
    Squamous odontogenic tumor (SOT) is a rare benign neoplasm and may be located to multiple sites in the oral cavity mouth. As per the literature, there have been <50 reported cases. The tumor is often asymptomatic, although it can present with symptoms of pain and tooth mobility. Peripheral odontogenic tumor is a rare entity derived from either epithelial or mesenchymal portions of the tooth-forming apparatus. Lesions are common to gingiva and alveolar mucosa. Peripheral granular cell ameloblastoma (GCA) is considered to be even rarer. The purpose of the study is to report a case of SOT with a synchronous association with peripheral GCA of cystic nature in the mandible. The occurrence of SOT with ameloblastoma has not been reported as per the literature search.
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  • 文章类型: Case Reports
    Peripheral ameloblastoma (PA) is a rare benign peripheral odontogenic tumor arising in the gingiva and in the overlying mucosa of tooth-bearing areas of the jaws. Recent data suggestthat the recurrence rate is directly related to inadequate surgical excision. This case of a 71-year-old man reports a poorly delineated mass effecting the gum of the left mandibular canine-premolars area histologically corresponded to PA. In complement to clinical visual examination of such a poorly delineated, non-exophytic and non-dyschromic inflammatory lesion, medical infrared thermography (MIT) - a non-invasive, non-ionizing and real-time imaging technique - was used to optimize the soft tissue margins, and a marginal bone resection was performed. MIT has also been found to be a useful tool in monitoring the absence of diseased tissue crossing the excisional margins at the end of the operation to minimize the risk of recurrence. After two years of follow-up, no local recurrence was found.
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  • 文章类型: Journal Article
    Ameloblastoma is the most common benign, but locally destructive, epithelial odontogenic tumour. Peripheral ameloblastoma may involve soft tissues without invasion or involvement of bone. The aim of this structured review was to evaluate the literature and guide clinical management. Three online databases were searched for relevant studies: Medline, EMBASE, and Ovid Evidence-Based Medicine, and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. A total of 520 papers were initially identified, and after exclusions were applied, 45 were included. Conservative surgical excision was the treatment of choice. There was no consensus in relation to the extent of the surgical margins required. The management of peripheral ameloblastoma appears to favour conservative excision with narrow margins of normal tissue. Follow up of at least 10 years is recommended to monitor for recurrence.
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  • 文章类型: Historical Article
    外周成釉细胞瘤(PA)是骨外牙源性肿瘤的原型形式。由于在60年的时间范围内,全球报告的200多例病例中积累了对PA的了解,理解这个实体的历史演变是很重要的。2018年,我们总结了PA的美国历史,强调Bloodgood在1904年取得的重要早期进步,他对“成釉细胞瘤的上皮形式”的许多原始观察。在我们上次报告的编写过程中,我们能够在文献中找到一些更早和有趣的描述。这篇综述涵盖了自19世纪以来PA的早期历史,按时间顺序专注于在美国和欧洲发表的功绩文章。
    Peripheral ameloblastoma (PA) is a prototype form of extraosseous odontogenic tumor. As knowledge of PA has accumulated on the basis of more than 200 cases reported worldwide over a 60-year timeframe, it is important to comprehend the historical evolution of this entity. In 2018, we summarized the American history of PA, stressing the important early strides made by Bloodgood in 1904 with his many original observations of the \"epulis form of ameloblastoma\". During the preparation of our previous report, we were able to find several earlier and interesting descriptions in the literature. This review covers the early history of PA since the nineteenth century, chronologically focusing on meritorious articles published in the United States and Europe.
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  • 文章类型: Case Reports
    Peripheral ameloblastoma, a soft-tissue analogue of intraosseous ameloblastoma, is a rare odontogenic tumor with histologic characteristics of ameloblastoma. In contrast to conventional ameloblastoma, peripheral ameloblastomas are considered as innocuous lesions which usually do not show invasion of the underlying structures. Rarely, intraosseous ameloblastoma which penetrates the alveolar bone can fuse with the overlying oral epithelium and eventually manifest as an exophytic peripheral lesion. Such lesions which mimic peripheral ameloblastoma both clinically and microscopically are termed as peripheral intraosseous ameloblastoma. As per the existing criteria, soft-tissue ameloblastomas showing bone invasion are strictly excluded from the category of peripheral ameloblastoma and are considered as peripheral intraosseous ameloblastoma. We report a rare case of extraosseous ameloblastoma with clear origin from the superficial epithelium showing the presence of a few odontogenic islands in the underlying bone suggestive of a neoplastic osseous invasion. This paper discusses the diagnostic challenges associated with peripherally occurring ameloblastomas and stresses the need for accurate diagnosis in deciding the treatment modalities.
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  • 文章类型: Case Reports
    Ameloblastomas are benign epithelial odontogenic neoplasms which are locally aggressive with an insidious growth pattern. Based on the clinical, radiographic, histopathology and behavioral and prognostic aspects, four variants of ameloblastoma are distinguished. They include solid/multicystic ameloblastoma, unicystic ameloblastoma (UA), peripheral ameloblastoma (PA) and desmoplastic ameloblastoma. UA and PA are two variants that have no clinical or radiological resemblance to each other. A case of simultaneous occurrence of these two lesions displaying an array of different histopathological entities together, with a note on pathological insight, has been reported in a 59-year-old adult male patient.
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    文章类型: Case Reports
    Peripheral ameloblastoma (PA), a rare and unusual variant of odontogenic tumors, comprises about 1% of all ameloblastomas. PA is an exophytic growth localized to the soft tissues overlying the tooth-bearing areas of the jaws, and the initial diagnosis is often fibrous epulis. PA with histologically low-grade malignant features is extremely rare. We report a case of peripheral ameloblastoma with histologically low-grade malignant features in a 69-year-old woman that presented with a hemorrhage from a tumor on the right buccal mucosa. The tumor was surgically removed by blunt dissection, with no evidence of recurrence after two years and six months. After the case presentation, microscopic and genetic findings are discussed.
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