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Query: UMLS:C0027651 (tumor)
 685,946 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

This report deals with the operative results in 45 cases of acoustic neurinoma treated in our service during the past six years. Surgery was performed in a lateral position through a small suboccipital craniectomy. Radical total removal of the tumor was achieved in 37 cases and nearly total resection was performed in 8 cases to preserve the facial nerve. Major complications occurred in 2 patients; one died of acute respiratory distress and the other had persisting ataxia due to damage of AICA. The facial nerve was anatomically preserved in 38 cases. Six patients in whom the facial nerve was not preserved underwent various types of facial nerve reconstruction. Postoperative follow-up showed excellent facial nerve function in 32 cases, good function in 11 and poor function in 3. Hearing was preserved in only one case of 11 cases who had preoperatively retained auditory function. Followings are important points for the preservation of postoperative facial nerve function and useful hearing. FACIAL NERVE: Intraoperative identification of facial nerve is crucial. The facial nerve was in most cases compressed ventrally by the tumor, however, 4 cases showed abnormal course of the facial nerve (dorsal in 1, rostral in 1 and caudal in 2 cases). The facial nerve was extremely thin and adherent at the ventral side of the tumor and invisible under the microscope in 60% of the cases. When the facial nerve is hardly separated from the tumor capsule, nearly total resection (leaving thin tumor capsule with the membranous facial nerve) is recommended.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Operative results in 45 cases of acoustic neurinoma: technical comments on the preservation of the facial nerve and hearing function]. 306 69

A 24-year-old man had a large anterior mediastinal mass and a nonproductive cough of 6 weeks' duration. With the patient under general anesthesia, a diagnostic mediastinoscopy was performed with endotracheal intubation. During the procedure, acute respiratory failure developed as a result of tracheal obstruction. Fiberoptic bronchoscopic examination of the patient in the supine position revealed almost total extrinsic compression of the trachea and no evidence of intraluminal disease. Reexamination of the trachea with the patient in sitting and semiprone positions showed resolution of the extrinsic compression and respiratory distress. Flow-volume curves obtained before treatment of the mediastinal mass (histologically diagnosed as Hodgkin's lymphoma) disclosed major airway compression with the patient in the supine position; the abnormality disappeared after chemotherapy. The mechanisms responsible for tracheal compression by mediastinal masses during general anesthesia may include the following: (1) the effect of anesthesia on pulmonary mechanics, (2) the supine body position, (3) the elimination of glottic regulation of airflow by endotracheal intubation, (4) changes related to the surgical manipulation of the tumor itself, (5) the size and location of the mediastinal mass, (6) the young age of the patient, and (7) preexisting airways disease. Anticipation and prevention of potential respiratory complications and preparedness to treat them appropriately are important aspects of the management of these patients.
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PMID:Mediastinal mass and tracheal obstruction during general anesthesia. 317 49

A case of a massive benign intrapericardial teratoma that presented at two weeks of age with significant respiratory distress is described. In retrospect, it was discovered that this infant had been evaluated by fetal echocardiography while in utero at 20 weeks of gestation due to a maternal history of surgically corrected tetralogy of Fallot. The fetal echocardiogram demonstrated normal intracardiac anatomy and no evidence of either a pericardial mass or effusion. It is concluded that this tumor spontaneously enlarged some time between 20 and 40 weeks of gestation.
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PMID:Development of a benign intrapericardial tumor between 20 and 40 weeks of gestation. 318 38

Teratoma is the most common nasopharyngeal tumor in neonates. The tumor is usually limited to the oropharynx and is manifest by stridor and respiratory distress. Complete excision affects a cure. An unusual case of nasopharyngeal teratoma extending into the temporal bone, causing facial paralysis and conductive hearing loss, in addition to stridor, is presented. Stridor was relieved by transoral partial excision shortly after birth. Complete removal of the tumor by way of a subtemporal and infratemporal fossa approach was performed at 14 months of age. The defect was filled with a rectus abdominis muscle graft with microvascular anastomoses. The facial nerve was reconstructed secondarily with a sural nerve graft. The patient has no recurrence tumor and has good facial function at 30 months. This case demonstrates the first known case of facial paralysis due to nasopharyngeal teratoma. The surgical approach for tumor removal: lateral infratemporal fossa dissection, and the method of reconstruction: free rectus abdominis muscle flap with microvascular anastomoses, had so far not been described in a patient this young.
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PMID:Nasopharyngeal teratoma involving the temporal bone. 320 63

A 6.5-year-old horse with a history of exercise-induced pulmonary hemorrhage was admitted because of acute onset of epistaxis, dyspnea, high respiratory rate, pale mucous membranes, and dark feces. There was no clinical or laboratory evidence of a bleeding disorder, and the horse's anemia was considered to be secondary to pulmonary hemorrhage. The cause of the hemorrhage was not found on thoracic sonograms or from cytologic examination of transtracheal aspirates. Despite supportive care, the horse's health deteriorated, and it was euthanatized. Necropsy revealed blood in the thoracic and peritoneal cavities and reddish black masses in many tissues. Histologic examination confirmed a diagnosis of hemangiosarcoma. Hemangiosarcoma is a rare tumor in horses; however, as this case demonstrates, it can cause pulmonary hemorrhage and respiratory distress and may be difficult to diagnose before death.
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PMID:Disseminated hemangiosarcoma in a horse. 263 56

Benign symmetrical lipomatosis of the neck is a rare disease that has to be differentiated from goiter, sialadenitis, obesity or a lymphatic tumor. Most patients are severe alcoholics, but they may have other endocrine disorders, such as diabetes mellitus, hyperuricemia, or hyperlipidemia. Aside from the cosmetic disfigurement and consequent psychological stress, respiratory distress may be the indication for surgical treatment. Excision of the lipomatosis requires technical skill because the extensive and sometimes infiltrative growth makes dissection of muscle and nerves difficult. The computer tomogram provides good information on the extent of the disease. Three of our 5 patients died 2 1/2 to 6 years after the first operation because of their primary disease.
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PMID:Lipomatosis of the neck (Madelung's neck). 327 65

Mesenchymal hamartomas of the liver usually present within the first 2 years of life. Abdominal enlargement and respiratory distress are the most common presenting features. Pathologically, the lesion is composed of large cysts separated by septations. Review of sonograms and CT scans in nine patients shows that a large, predominantly cystic mass with internal septae is characteristic of the tumor. Angiography shows peripheral hypervascularity with a septated avascular center. A confident preoperative diagnosis of mesenchymal hamartoma based on these features is possible.
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PMID:Mesenchymal hamartomas of the liver in childhood: sonographic and CT findings. 353 29

A newborn girl suffered from recurrent respiratory distress and swallowing disturbances. With coughing or belching a grape-like tumor appeared in the oral cavity, which was affixed like a pendulum in the hypopharynx. Histological examination revealed a polypoid hamartoma of the hypopharyngeal wall and ectopic gastric mucosa. Various theories of embryogenesis of this very rare condition in the head and neck region are presented. No associated anomalies are reported. Complete surgical excision is curative.
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PMID:[Stridor in the neonatal period in heterotopic gastric mucosa of the hypopharynx]. 357 92

Infants with respiratory distress syndrome are routinely evaluated for infection which commonly includes a lumbar puncture. In this study cerebrospinal fluid (CSF) examination failed to elicit evidence for meningitis in 238 consecutively admitted infants with respiratory distress syndrome evaluated during the first 24 hours of life. Blood cultures were obtained in all; suprapubic or catheterized urine was obtained in 163 infants; CSF was collected successfully in 203 infants. Seventeen infants demonstrated positive blood cultures: 7 Streptococcus, 5 Staphylococcus, 3 Haemophilus influenzae, 1 Bacillus subtilis and 1 diphtheroid infection. CSF obtained from 14 of those infants had normal examinations and sterile cultures. Factors associated with bacteremia were birth weight (P less than 0.01), gestational age (P less than 0.01), prolonged rupture of membranes (P less than 0.05) and leukopenia below 10 000/mm3 (P less than 0.05). In view of the negative CSF examinations in infants with positive blood cultures and the potential complications of lumbar puncture (hypoxia, trauma, infection, epidermoid tumor), the potential risks of CSF evaluation may exceed the assessed benefit for the infant with respiratory distress syndrome.
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PMID:Evaluation of routine lumbar punctures in newborn infants with respiratory distress syndrome. 357 8

Two-dimensional echocardiography is a useful noninvasive tool for diagnosing intrapericardial tumors as a cause of respiratory distress or abnormal cardiomediastinal shadow on chest x-ray. Early recognition of these tumors within the pericardium is important since surgical removal is often curative. Cardiac cineangiography is unnecessary to delineate further the tumor and should be reserved for those in which associated intracardiac defects are suspected.
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PMID:Diagnosis of intrapericardial tumor in an infant by two-dimensional echocardiography. 370 96


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