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Tumor del cuerpo carotídeo: A propósito de 10 casos tratados Carotid body tumors: Report of ten cases  [cached]
Sebastián Soto G,Francisco Valdés E,Albrecht Krámer Sen,Leopoldo Mariné M
Revista médica de Chile , 2007,
Abstract: Background: Carotid body tumors arise from a cellular conglomerate located at the carotid bifurcation. Progressive enlargement can involve the arterial wall and neighbor cranial nerves. Aim: To report a series of 10 patients treated of carotid body tumors and review national experience. Patients and methods: Between 1984 and 2006, we operated 8 women and 2 men, aged 19 to 75 years, with this type of tumor. Results: The most common cause for consultation was a cervical mass in 90%, with a mean evolution lapse of 13.2 months (range 3 to 126). In all cases, diagnosis was confirmed with angiographic imaging and histopathology. Ten tumors were surgically removed with no complications. Eighty percent of tumors were in stage II according to Shamblin classification. During long term follow up all patients have remained asymptomatic. Only 31 carotid body tumors have been reported in Chilean medical literature during a 43 year period. Conclusions: Paragangliomas of the carotid body can be diagnosed in clinical grounds, requiring vascular imaging. These infrequent lesions are generally benign, early surgical removal by surgeons with vascular expertise avoids neurological and or vascular complications
Tumor del cuerpo carotídeo: Presentación de un caso por ecografía y resonancia magnética Carotid body tumor: A case presentation with ultrasonography and magnetic resonance imaging  [cached]
Marcelo Cabrini,Víctor González,J. Alejandro Márquez,Cristian Rosas
Revista Argentina de Radiología , 2009,
Abstract: El tumor de cuerpo carotídeo, que se origina en los quimiorreceptores de dicha estructura, representa hasta el 50% de los paragangliomas de cabeza y cuello. En forma frecuente, constituye un hallazgo incidental (asintomático), aunque en algunos casos los pacientes pueden consultar por una masa indolora, ronquera, paresia lingual y/o disfagia. Sus características imagenológicas permiten una aproximación diagnóstica no invasiva con altos índices de sensibilidad y especificidad, por lo que su conocimiento facilita la conducta clínico-terapéutica. Se presenta un caso clínico que resulta particularmente elocuente para la práctica diaria, ya que la paciente tiene antecedentes quirúrgicos por patología tiroidea maligna, hecho que precisa una aproximación diagnóstica estricta para su correcto seguimiento. The carotid body tumor, which arises from its chief cells (glomus type 1), is the most common paraganglioma of the head and neck (up to 50%). This tumor is in most cases clinically silent and is detected incidentally at imaging study during evaluation of patients with unrelated symptoms such as painless, slowly growing lateral neck mass, dysphagia, sleep apnea, and paresia or atrophy of the tongue. According to its appearance, precise non-invasive imaging techniques may allow the radiologist to reach the correct diagnosis and treatment. The following case report is particularly useful for daily practice; the patient has surgical history of tiroid neoplasm which requires a thorough diagnosis, in order to determine an accurate follow-up.
Anesthetic management of schwannoma mimicking carotid body tumor  [cached]
Sivasankar C
International Medical Case Reports Journal , 2012,
Abstract: Chitra SivasankarDepartment of Anesthesiology, Guthrie Clinic, Sayre, PA, USAAbstract: Schwannomas are rare and slow-growing neurogenic tumors for which surgery is the standard of care. However, the anesthetic management of these tumors can be challenging. This case report describes the anesthetic management of a patient who underwent carotid endarterectomy and excision of a presumed carotid body tumor. Histopathologic examination showed that the excised tissue was a schwannoma, which in this location can mimic a carotid body tumor. The relevant literature is also reviewed.Keywords: anesthesia, carotid body tumor splaying, head and neck tumor, schwannoma
Hypoglossal Schwannoma Masquerading as a Carotid Body Tumor
Matthew K. Lee,Douglas R. Sidell,Abie H. Mendelsohn,Keith E. Blackwell
Case Reports in Otolaryngology , 2012, DOI: 10.1155/2012/842761
Abstract: Study Objective. To describe the clinical presentation, evaluation, and treatment of a hypoglossal schwannoma. Methods. We report an unusual case of a hypoglossal schwannoma presenting as a pulsatile level II neck mass at the bifurcation of the external and internal carotid arteries, mimicking a carotid body tumor. Radiologic findings are reviewed in detail. Results. A 59-year-old female presented to a tertiary care medical center with complaints of a pulsatile right-sided neck mass. An MRA of the neck was obtained demonstrating a 5 cm mass located at the carotid artery bifurcation and causing splaying of the internal and external carotids. Based on clinical presentation and imaging, a diagnosis of a carotid body tumor was conferred and the patient scheduled for excision. Intraoperatively, the mass was noted to arise from the hypoglossal nerve, remaining independent of the carotid artery. On histopathologic analysis, the mass was determined to be consistent with hypoglossal schwannoma. Conclusion. Though rare, the hypoglossal schwannoma should remain a consideration in the evaluation of a parapharyngeal space mass. As this report demonstrates, the clinical and radiologic presentation of a hypoglossal schwannoma may closely mimic that of the more common carotid body tumor.
The Importance of Flowmetry in Carotid Body Tumor Surgery: A Case Report  [cached]
Abdurrahim Colak,Munacettin Ceviz,Necip Becit,Aysenur Dostbil
Eurasian Journal of Medicine , 2012,
Abstract: Carotid body tumors arise from the embryonic neural crest. These tumors are mostly benign, and they rarely show character. Bifurcation of the carotid body cells originates from a common carotid paraganglion; a tumoral mass lateral to the carotid bifurcation is usually found in the neck. A pathologic feature of these tumors is that they have a tendency to wrap because they are not treated with the external and internal carotid arteries. In our clinic, we operated on a patient who had been diagnosed with carotid body tumor. After removal of the internal carotid artery, the mass flow due to a decrease in the light of literature used to evaluate the importance of flowmetry carotid surgery.
Hypoglossal Schwannoma Masquerading as a Carotid Body Tumor  [PDF]
Matthew K. Lee,Douglas R. Sidell,Abie H. Mendelsohn,Keith E. Blackwell
Case Reports in Otolaryngology , 2012, DOI: 10.1155/2012/842761
Abstract: Study Objective. To describe the clinical presentation, evaluation, and treatment of a hypoglossal schwannoma. Methods. We report an unusual case of a hypoglossal schwannoma presenting as a pulsatile level II neck mass at the bifurcation of the external and internal carotid arteries, mimicking a carotid body tumor. Radiologic findings are reviewed in detail. Results. A 59-year-old female presented to a tertiary care medical center with complaints of a pulsatile right-sided neck mass. An MRA of the neck was obtained demonstrating a 5?cm mass located at the carotid artery bifurcation and causing splaying of the internal and external carotids. Based on clinical presentation and imaging, a diagnosis of a carotid body tumor was conferred and the patient scheduled for excision. Intraoperatively, the mass was noted to arise from the hypoglossal nerve, remaining independent of the carotid artery. On histopathologic analysis, the mass was determined to be consistent with hypoglossal schwannoma. Conclusion. Though rare, the hypoglossal schwannoma should remain a consideration in the evaluation of a parapharyngeal space mass. As this report demonstrates, the clinical and radiologic presentation of a hypoglossal schwannoma may closely mimic that of the more common carotid body tumor. 1. Introduction Magnetic resonance imaging (MRI) and computed tomography (CT) scanning play a significant role in the diagnostic workup of masses located in the retrostyloid parapharyngeal space. Retrostyloid neoplasms frequently arise from neural crest origin, and both paragangliomas and schwannomas are common considerations in the differential diagnosis of such masses. Although paragangliomas and schwannomas share several similarities on imaging, it is often the unique characteristics of each lesion that allow for a definitive radiologic diagnosis. The carotid body tumor is the most frequently identified paraganglioma in the head and neck and has a typical appearance on imaging that is rarely replicated by other lesions [1]. Despite this distinctive appearance, other lesions have been known to imitate the appearance of the carotid body tumor, thereby resulting in an inaccurate diagnosis. In this report, we present a patient with a rare hypoglossal schwannoma mimicking a carotid body tumor. To our knowledge, this is the first report of such a lesion. The radiologic and intraoperative characteristics of this lesion are reviewed, and a detailed literature review of relevant parapharyngeal space neoplasms is performed. 2. Case Report A 59 year-old female presented to a tertiary-care
Anesthetic management of schwannoma mimicking carotid body tumor
Sivasankar C
International Medical Case Reports Journal , 2012, DOI: http://dx.doi.org/10.2147/IMCRJ.S35093
Abstract: nesthetic management of schwannoma mimicking carotid body tumor Case report (1059) Total Article Views Authors: Sivasankar C Published Date August 2012 Volume 2012:5 Pages 55 - 58 DOI: http://dx.doi.org/10.2147/IMCRJ.S35093 Received: 16 June 2012 Accepted: 01 August 2012 Published: 29 August 2012 Chitra Sivasankar Department of Anesthesiology, Guthrie Clinic, Sayre, PA, USA Abstract: Schwannomas are rare and slow-growing neurogenic tumors for which surgery is the standard of care. However, the anesthetic management of these tumors can be challenging. This case report describes the anesthetic management of a patient who underwent carotid endarterectomy and excision of a presumed carotid body tumor. Histopathologic examination showed that the excised tissue was a schwannoma, which in this location can mimic a carotid body tumor. The relevant literature is also reviewed.
Carotid Body Tumor Imaging:"Paraganglioma, Chemidectoma"
Jalal Jalalshokouhi
Iranian Journal of Radiology , 2010,
Abstract: Introduction: Carotid body tumor is a rare benign tumor originating from cells of neural crest tissue. It could present with Horner's syndrome. This tumor is rare and comprises 0.5% of all neoplasms. A familial incidence with autosomal dominant transmission has been reported. "nI have a series of five patients from a known family with one death during surgery because of carotid artery rupturing, others were diagnosed by color Doppler US and dynamic CT scan. Generally, it is sporadic and more frequently seen in high-altitude living people."nSex incidence is approximately equal, "little bit more frequent in the female"."nA characteristic saddle deformity is seen in invasive angiography."nSymptoms are nonspecific; such as, headache, dizziness, tinnitus, loss of hearing acuity, hoarseness, vocal cord or hypoglossal nerve paralysis and syncope. Horner's syndrome is due to sympathetic chain involvement."nThree stages or types of disease have been described by Shambling and colleagues "nFirst, minimally involved internal carotid artery "sub-adventitial""nSecond, partial incorporation of the sheath of internal carotid artery"nThe third type is encircling of internal carotid artery with dense adherence"nImaging: High frequency, high-resolution ultrasonography and color Doppler study are necessary to see blood flow in the artery, bifurcation widening and blood flow in the tumor (low resistance)."nSpiral dynamic X-ray CT: Spiral CT with MPR'S and 3D-angiography is the best imaging to show tumor vascularity and the internal carotid lumen."nDSA or invasive angiography is used for preoperative embolization (larger than 2 cm) just before surgery (gold standard)."nMRI with dynamic and without GD and MRA could replace X-ray CT scan."nTreatment is surgery, embolization and radiation therapy."nNinety-seven patients have been reported from Iran by Mohammad Taghi Salehian as an original article."nRare statements: A malignant unilateral chemodectoma may appear and metastasize to the bone in 6-12.5% of the cases. The abdominal wall is another rare location of metastasis."nA sex-linked genetic trait is possible. "nAll bilateral tumor cases are benign. "n90% of tumors are unilateral and 10% are bilateral. "nSporadic forms are more common than the inherited variety."n65% of head and neck paragangliomas are carotid body tumors."nClassification is sporadic, familial and hyperplastic."nThe common age involvement is the fifth decade, but in MENS (multiple endocrine neoplasia) syndrome, it develops in younger patients."nCarotid body tumors have been reported in siblings of a Turkish
On Kerr's corpuscle  [PDF]
A. Loinger
Physics , 1999,
Abstract: Simple changes of the radial co-ordinate deprive Kerr's spinning corpuscle of its marvellous properties.
Tumor de cuerpo carotídeo Carotid body tumor  [cached]
RICARDO Yá?EZ M,FRANCISCO LOYOLA B,JORGE CORNEJO F
Revista Chilena de Cirugía , 2011,
Abstract: Los tumores de cuerpo carotídeo (paragangliomas) son neoplasias altamente vascularizadas, muy poco frecuentes y generalmente benignas, originadas en los quimiorreceptores del cuerpo carotídeo. Se presentan los casos de dos pacientes derivados por aumento de volumen cervical izquierdo, asintomáticos, con estudio preoperatorio realizado por TAC y angiografía por TAC, respectivamente, que resultan compatibles con tumores de cuerpo carotídeo. Se resuelven quirúrgicamente, mediante disección subadventicial, informando la biopsia paraganglioma. Los tumores fueron completamente removidos, sin evidencia de recurrencia y sin mayores complicaciones. Carotid body tumors (paragangliomas) are very rare, highly vascularized and usually benign tumors, originated in the carotid body chemoreceptors. We present the cases of two asymptomatic patients referred for left cervical mass; preoperative study was CT and CT angiography, respectively, which are consistent with carotid body tumors. The tumors were completely removed by subadventitial disection without complications; the biopsy was compatible with paraganglioma. No evidence of recurrence could be found.
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