Cases reported "Rhabdomyoma"

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1/46. Bilateral recurrent adult rhabdomyomas of the pharyngeal wall.

    adult rhabdomyomas of the head and neck are uncommon benign skeletal muscle tumors. Only a few cases occurring in the pharyngeal wall have been described in the world literature. We present a case of recurrent bilateral rhabdomyomas in the pharynx and discuss the clinicopathological features of this lesion, comparing it to those of other neoplasms from which it must be differentiated. To our knowledge, bilaterality of this type of lesion has not been described previously. Although adult rhabdomyomas have a distinct histology, they often are mistaken for a variety of other lesions, particularly granular cell tumor.
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2/46. Oesophageal rhabdomyoma.

    Extracardiac rhabdomyomas are rare benign tumours showing striated muscle differentiation. Seventy percent of these lesions occur in the head and neck region. The most common sites for these lesions are the larynx, pharynx, and the floor of the mouth. There has been only one previous report of a rhabdomyoma of the oesophagus; two further cases are described.
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3/46. rhabdomyoma of a rare type in a child: case report and literature review.

    We describe a 9-year-old boy who presented with dyspnea and with a neck mass which was initially described as a thyroid nodule. At the end of the diagnostic-therapeutic research this mass was finally diagnosed as an adult rhabdomyoma originating from the mediastinum. This is an extremely rare tumor which is usually found in the adult population.
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4/46. adult rhabdomyoma in the masticatory area. New case presentation and review of the literature.

    adult rhabdomyoma is a rare neoplasm of mesenchymal origin which represents approximately 2% of tumors with skeletal muscle differentiation. There are only about 100 cases reported in the literature. It is a benign tumor occurring most frequently in the head and neck region, which affects predominantly male population of a mean age ranging from 54 to 60. The purpose of this article is to present a new case of adult rhabdomyoma located in the masticatory area, arising as a slow-growing mass bulging in the left-side jugal mucosa and temporal region. The most common location for adult rhabdomyoma is the pharyngeal cavity. This type of tumor appears as a solitary mass, though occasionally may be multifocal. This tumor being of low occurrence, correct diagnosis can prevent aggressive surgery.
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keywords = neck
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5/46. Fetal rhabdomyoma of the posterior cervical triangle.

    rhabdomyoma is an uncommon benign tumor, with the majority arising from cardiac muscle. Seventy to 90% of extracardiac rhabdomyomas are found in the head and neck region, usually within the upper aerodigestive tract. The case of a 7-month-old boy with an enlarging posterior triangle neck mass found to be fetal rhabdomyoma is presented. This location is quite rare for benign rhabdomyoma, with previous literature search showing overwhelming predilection for the upper aerodigestive tract.
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6/46. rhabdomyoma of the orbit: a case report.

    Extracardiac rhabdomyoma is a rare benign neoplasm of skeletal muscle differentiation. It occurs most often in the head and neck, but only four cases with occurrence in the orbit have been reported in the literature. A 3-month-old infant presented with right proptosis. MRI showed an enhancing intraconal mass in the right orbit, which appeared isointense on TI-weighted images and hypointense on T2-weighted images. The mass was removed and diagnosed as rhabdomyoma. It recurred 8 months after surgery. MR imaging features can be helpful for the diagnosis.
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7/46. adult cellular rhabdomyoma of the heart: a report of 3 cases.

    We present 3 adults with cardiac rhabdomyomas, 2 in the atria and 1 in the right ventricle. One atrial tumor was discovered incidentally, and 1 resulted in supraventricular tachycardia. The ventricular lesion caused ventricular tachycardia. Compared with congenital rhabdomyomas, the tumors are relatively cellular, the cells are smaller, there are few spider cells, and there is evidence of cell proliferation. Two of the 3 tumors demonstrated spindling in contrast to adult rhabdomyomas of the head and neck. Although surgical excision was possible in all patients, long-term follow-up will be required to determine the true biologic behavior of these neoplasms.
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8/46. rhabdomyoma of the base of the tongue.

    The histopathological and imaging findings of a rhabdomyoma of the base of the tongue were studied. An immunohistochemical examination of the tumour cells showed positive immunostaining for myoglobin, desmin, and striated muscle actin, but negative immunostaining for smooth muscle actin. Electron microscopy showed many glycogen granules and mitochondria in the tumour cells. The T2-weighted and contrast-enhanced magnetic resonance images (MRI) clearly delineated morphological features of this tumour, but T1-weighted MRI and computed tomography (CT) images showed no important features. These findings are typical for an adult extracardiac rhabdomyoma located in the head and neck region, and they will be useful for diagnosis of this tumour.
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9/46. rhabdomyoma of the head and neck: clinicopathologic features of two cases.

    BACKGROUND: Extracardiac rhabdomyomas are rare benign tumors of the head and neck. They are frequently misdiagnosed and possibly overtreated when confused with other aggressive tumors. methods: This article reports on the clinicopathologic features of two such tumors affecting adult patients and initially seen as slowly-growing, indolent neoplasms. RESULTS: The tumors were of fibrous consistency, mobile, with well-demarcated borders and evident lines of cleavage. Both patients were treated by conservative surgery and remained disease-free after prolonged clinical observation. Histologically, both tumors were composed of large eosinophilic cells intermingled with polyhedral clear cells. Both cell types contained abundant glycogen accumulations. CONCLUSIONS: The differential diagnosis is with granular cell tumor and with sarcomas, the former being easily distinguishable morphologically, and the latter be seen with more rapid growth and adherence to the adjacent tissues. On the basis of the preceding features, rhabdomyomas can be suspected at a preoperative stage and adequately managed with enucleation or simple excision.
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keywords = neck
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10/46. Multifocal adult rhabdomyomas of the head and neck.

    Rhabdomyomas are usually found in the myocardium. Of the extracardiac sites, the head and neck is the most frequent region where this rare tumor arises. Multifocal head and neck lesions have only been described in 11 cases. We herein present two additional multifocal lesions.
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ranking = 6
keywords = neck
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