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1.
Arteriovenous malformations of the head and neck pose a challenging therapeutic and reconstructive problem. In this report we describe a rare case of an arteriovenous malformation of the base of tongue. The patient, a young adult female, was treated with embolization followed by surgical resection using a lateral pharyngotomy approach. Reconstruction of the extensive base of tongue defect was accomplished using a radial forearm free flap. Currently, the patient is decannulated, articulates clearly, tolerates a normal diet, and is without recurrence. Our treatment approach is discussed in detail and compared with alternative techniques. 相似文献
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J Guerrero JJ Alvarez Vicent O Novo A García L Romero MA Melchor C Ballestin 《Canadian Metallurgical Quarterly》1995,22(3):299-309
Adenosquamous carcinoma of the salivary glands is an unusual neoplasm not unanimously included in many classifications of salivary gland malignancies. A case sited in the oral cavity, within the tongue is reported. Clinical and histopathologic features are described together with a discussion about treatment and behaviour. We also include an updated of literature relating to this entity. 相似文献
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K Sugihara M Hirokawa M Shimizu T Manabe T Kanahara 《Canadian Metallurgical Quarterly》1998,42(3):751-753
BACKGROUND: Collagenous crystalloids were previously observed in histologic sections of pleomorphic adenoma. However, to the best of our knowledge, there have been no English-language reports dealing with collagenous crystalloids in fine needle aspirates. CASE: A fine needle aspiration specimen obtained from a mass in the hard palate of a 52-year-old female revealed collagenous crystalloids. The crystalloids were yellow to green, measured 30-50 microns in diameter and were radially arranged. CONCLUSION: This case indicates that collagenous crystalloids in salivary gland aspirates may be a clue to the diagnosis of pleomorphic adenoma. 相似文献
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Haemangiopericytoma is a rare, soft tissue, tumour with unpredictable biological behaviour. A case of haemangiopericytoma of the parotid salivary gland is reported. The clinical, surgical and histological features are described. 相似文献
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A woman with hyperthyroidism, hypercalcemia, and a parathyroid adenoma is described. Various studies indicate that in hypothyroid subjects given an acute dose of calcium, the serum calcium levels remain elevated for longer periods than in control subjects. In part, this may be due to diminished bone uptake. Despite these studies which would tend to support the contention that hypothyroid patients "have a propensity to hypercalcemia" (Lowe et al), overt and significant hypercalcemia is unusual. Hypothyroidism is listed as a possible cause of hypercalcemia. This does not seem to be warranted by a review of the literature. The reference most often cited is that of Lowe et al. In their particular case, the hypercalcemia improved with thyroid replacement therapy. This also happened in our case. However, the measurement of IPTH levels led to the correct diagnosis. IPTH levels were not available at the time of Lowe's report and hyperparathyroidism was not completely excluded. Therefore, at this time, the reported association of hypercalcemia with adult hypothyroidism needs further examination to determine if this association is real. 相似文献
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Pleomorphic adenomas account for the majority of parotid masses, typically arising in the tail of the gland and enlarging slowly over time. The vast majority are 2 to 6 cm in size when resected. We report resection of the largest benign mixed tumor recorded in the modern English language literature. An 85-year-old reclusive woman had a 20-year history of an enlarging right periauricular mass that had begun bleeding several days prior to admission. The patient ultimately underwent resection of the mass, which measured 26 cm in diameter, weighed 6.85 kg, and proved on pathologic examination to be a benign mixed tumor without malignant degeneration. The implications of this unusual case for the management of mixed tumors are discussed, and a review of the world literature on giant pleomorphic adenomas is presented. 相似文献
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The accessory soleus muscle is a rare anatomic variant that may present as a mass in the posterior-medial aspect of the ankle in young adults. The presence of such a mass may result in pain and difficulty with running. We present a case of accessory soleus muscle in a 21-year-old soldier and review the literature. We present the first magnetic resonance imaging studies in the American literature, to our knowledge, of this unusual anomaly. 相似文献
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The clinical and histological features of oncocytic adenomatous hyperplasia, papillary adenoma, and papillary adenocarcinoma of the oral cavity are described, and the literature is reviewed. Histological features which may be of value in distinguishing between benign and malignant variants are described, and in view of the slow growth rate of most of these tumours, the importance of long-term follow-up is stressed. 相似文献
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Papillary cystadenoma of the minor salivary glands is a rare benign tumor that clinically resembles a mucous cyst. We demonstrate its histologic features and differential diagnosis by a case report. Benign and malignant neoplasms of the minor salivary glands are not well acknowledged in the dermatologic literature, but should be considered in the differential diagnosis for mucous cysts. 相似文献
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The growth of the basal unit of the mandible was studied by plotting the position, relative to the median plane, of the oval, mandibular and mental foramina in immature and adult skulls of Man, chimpanzee and gorilla. In Man, the basal unit was found to grow out along a constant logarithmic spiral. In the apes, the basal unit grew along a constant logarithmic spiral, the amount of unfolding being greater in the gorilla than in the chimpanzee. It is argued that the mode of growth seen in the apes evolved, as these forms became more prognathous, because it requires less compensatory rotation of the mandible, while the mode seen in Man is probably closer to that which occurred in common ancestral form. 相似文献
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Postpartum ovarian vein thrombosis, well described in the obstetrical literature with an incidence approaching 1 in 2,000 pregnancies, can present as a life-threatening complication. Although infrequent, thrombophlebitis of the ovarian vein may remain unrecognized and result in pulmonary embolism with dire outcome. Postpartum ovarian vein thrombosis can present initially as an acute ureteral obstruction, making it incumbent upon the urologist to recognize the entity with its associated radiological and clinical findings. A case report is presented to illustrate the disorder. 相似文献
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BACKGROUND: Hereditary motor and sensory neuropathy types I and III usually lead to enlargement of peripheral nerves. Rarely, spinal nerve roots may also be involved, leading to radiculopathy and/or myelopathy. METHODS: This 44-year-old man with back and lower extremity radicular pain and distal lower extremity weakness and numbness was found to have a nonenhancing intradural mass that caused a nearly complete myelographic block from L1-L4. He underwent a decompressive laminectomy with intradural exploration. RESULTS: Hypertrophic but otherwise normal-looking nerve roots were observed. Subsequent electrodiagnostic testing and sural nerve biopsy confirmed that this patient had a previously unsuspected hereditary motor and sensory neuropathy (HMSN). His pain resolved, but at latest follow-up his weakness and numbness persisted. CONCLUSIONS: Nonenhancing spinal intradural mass lesions may represent enlarged nerve roots, which have a number of potential etiologies. Electrodiagnostic studies and peripheral nerve biopsy are instrumental in establishing the diagnosis of HMSN. 相似文献
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PF Ippel EJ Breslau-Siderius WW Hack HF van der Blij S Bouve JB Bijlsma 《Canadian Metallurgical Quarterly》1998,157(6):493-497
Rapid changes in the circulating blood volume or hemoglobin level during apheresis may pose a risk for healthy individuals donating allogeneic PBSC. In this study, a real-time noninvasive monitor CRIT-LINE was used for continuous monitoring of hematocrit values in a total of 16 aphereses performed in 4 adult (median age 30 years) and 4 pediatric donors (4 years). Donors received recombinant G-CSF (10 microg/kg s.c. for 5 days) for mobilization of PBSC. A CS3000 plus blood cell separator (Baxter) was used in two different procedures. Adults donors were subjected to modified program 1-120 using a combination of the granulocyte chamber and the small volume collection chamber (SVCC), and pediatric donors were subjected to specialized program 4 with a combination of the newly developed small volume separation chamber holder (SVSCH) and SVCC. In all of the procedures for children, the extracorporeal line was primed with 400 ml leukocyte-depleted allogeneic RBC or 200 ml autologous RBC after regular priming with normal saline, whereas none of the adult donors received this treatment. We found a marked contrast in the hematocrit kinetics during apheresis in the two cohorts/procedures. In adults, the initiation of apheresis was followed by an immediate decline in the hematocrit value over the initial 10 min until a stable plateau level was reached (7% decrease). In children, the values decreased slowly but progressively throughout the entire procedure to finally reach a 9% decrease at the completion of apheresis. These data may suggest that the use of SVSCH plus SVCC or priming with RBC can eliminate the abrupt decline in blood hemoglobin levels that occurs during apheresis. 相似文献
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M Marchesi M Biffoni T Mastropietro M Millarelli A Marzullo FP Campana 《Canadian Metallurgical Quarterly》1997,18(11-12):820-822
Riedel's thyroiditis is a very rare disease of unknown aetiology, occasionally associated with retroperitoneal and mediastinal fibrosis. It is a benign condition, but may be confused with an anaplastic carcinoma of the thyroid. The differential diagnosis with anaplastic carcinoma is assured only by intraoperative biopsy. The Authors report a clinical case: symptoms were a progressive enlargement of the thyroid gland, left recurrential palsy, dyspnoea and dysphagia. The surgical treatment was total thyroidectomy, performed with bilateral neurolysis of recurrent nerves. The patient was also under adjuvant corticosteroid treatment. 相似文献
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Only rare cases of cryptococcal myositis have been previously reported in the literature. All of these cases have occurred in the setting of human immunodeficiency virus (HIV) infection. We report a case of cryptococcal myositis diagnosed premortem on a needle biopsy in a heart transplant patient undergoing immunosuppressive therapy. 相似文献
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BACKGROUND: The clinical significance of the 14 and 6 positive spikes (PS) electroencephalographic (EEG) phenomenon is not well established. This study was performed to provide further data regarding the clinical correlates of the PS, particularly attention-deficit/hyperactivity and somatic symptoms. METHODS: Diagnostic information gathered through structured interviews was compared among four groups of psychiatric inpatients aged 4-17 years who underwent an EEG examination over a 2-year period. Groups consisted of patients with: 1) 14 and 6 PS (n = 25); 2) epileptic discharges (n = 29); 3) slow-wave abnormalities (n = 23); and 4) a normal EEG group age and sex matched to the 14 and 6 PS group (n = 25). RESULTS: Attention-deficit hyperactivity disorder (ADHD) symptoms were significantly more frequent in the PS group (chi 2 = 2.96, p < .05) compared to the other three groups combined. Although somatic symptoms were not increased in the 14 and 6 PS group, anxiety symptoms tended to occur more in this group (chi 2 = 3.50, p < .06). CONCLUSIONS: The PS profile appears associated with ADHD symptoms. Possible treatment implications of this finding (e.g., use of anticonvulsants in ADHD patients with PS) need to be explored. 相似文献