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Query: UMLS:C0729233 (Thoracic)
 6,478 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Thoracic gas volume (TGV), resting lung volume at end expiration, was measured by the plethysmographic technique in 9 infants with Werdnig-Hoffmann disease. Five of these infants were considered to have intrauterine onset of the disease; the mother in each case had reported a pronounced reduction in fetal activity during the last trimester of pregnancy, and 4 were found to be hypotonic at birth. The remaining 4 infants appeared normal at birth and did not develop any signs of the disease until between 2 and 12 weeks postnatally. Those with intrauterine onset of disease had a significantly reduced TGV (mean 20.8 ml kg(-1)), whereas those with postnatal onset had normal lung volumes (means 36.1 ml kg(-1)). The reduction in lung volume correlated only with intrauterine onset of disease, and was not related to either the degree of muscle weakness or the duration of disease. There is increasing evidence that fetal breathing movements may be one of the essential prerequisites for normal fetal lung development. It is therefore possible that diminished fetal breathing movements, resulting from weakness of the respiratory musculature in utero, could be responsible for the reduction in lung volume found in those infants with intrauterine onset of the disease.
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PMID:Werdnig-Hoffmann disease. The effects of intrauterine onset on lung growth. 74 96

Lesions of the thoracic duct may occur either in the neck or the mediastinum. The majority of lesions that present in the neck consist of chylous fistulae and are secondary to neck surgery. Cysts of the thoracic duct are very rare and are usually reported as a disease entity of the mediastinum. There are only two reported cases in the literature of thoracic duct cysts occurring in the neck. The third case of a thoracic duct cyst located primarily in the neck is reported. Thoracic duct cysts in the neck must be differentiated from other cysts of the neck, because not recognizing the inferior attachment to the thoracic duct, may result in the disastrous consequence of a chylothorax. Diagnosis can easily be made by fine-needle aspiration with biochemical analysis. Computerized axial tomography (CAT) is useful in defining the anatomic boundaries. A weakness in the wall of the thoracic duct, either on a congenital or degenerative basis, has been postulated as the etiology. The natural history of these lesions remains unknown. Smaller lesions may be followed at routine intervals. Larger lesions should be surgically removed because of the possible complications that may ensue as a result of traumatic rupture or inflammation.
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PMID:Thoracic duct cyst: an unusual supraclavicular mass. 146 26

A 4-year-old castrated Abyssinian cat was evaluated for profound neuromuscular weakness. Results of electromyography and repetitive nerve stimulation tests were normal. Thoracic radiography revealed a cranial mediastinal mass, which was excised and identified as a thymoma. Serum acetylcholine receptor antibodies were detected at high concentration, supporting a diagnosis of acquired myasthenia gravis. Clinical signs of disease responded to treatment with pyridostigmine and corticosteroids.
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PMID:Acquired myasthenia gravis in a cat with thymoma. 233 78

Endocardial splitting and left atrial rupture were diagnosed in a dog with mitral regurgitation that experienced the sudden onset of collapsing episodes, weakness, depression, labored breathing, and weak pulses. Thoracic radiographs showed a rounded cardiac silhouette with prominent left atrium consistent with hemopericardium due to left atrial rupture. Two-dimensional echocardiography confirmed the presence of severe mitral valve disease, pericardial fluid, and a laminated blood clot caudal to the left ventricle. A sterile emergency thoracotomy was performed, the hemopericardium and blood clot were removed, and the rupture site in the left atrium was repaired with reinforced sutures. The dog recovered from surgery but died the next day, presumably from a ventricular arrhythmia.
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PMID:Echocardiography and surgery in a dog with left atrial rupture and hemopericardium. 240 68

Thoracic spondylotic myelopathies are exceptional, only 29 observations could be found in the literature; we intend to describe three new cases here. The patients, two women and one man, 64, 69 and 72 years old, complained of weakness of the lower limbs, more marked on one side, which had been progressing slowly from several months to eight years. Examination revealed asymmetrical paraparesis with distal sensitivity deficits without thoracic sensory level. In the first case, the myelography remained virtually unchanged in front of T11, T12; in the second and third cases, there was slight extradural compression at T9 and T10 respectively. Magnetic Resonance Imaging (M.R.I.) performed in two patients was evocative of a thoracic disk herniation. A chest CT scan enabled us to establish correct diagnosis: in the three cases irregular hypertrophy of the posterior elements was evident at T11 and T12, T9 and T10, T10 and T11 respectively, with osteophytes originating in the articular process and deeply embedded in the spinal canal. Decompressive laminectomy associated with medial facetectomy resulted in the gradual improvement of walking in all three patients. Myelography and MRI are both useful in demonstrating the level compression, usually situated in the low thoracic spine, however only the CT allows differential diagnosis with other etiologies, especially anterior compression such as disk herniation.
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PMID:[Myelopathies caused by dorsal spinal canal spondylotic stenosis. 3 cases and a review of the literature]. 269 79

A case of spinal dumbbell shaped melanotic schwannoma was reported. A 58-year-old housewife had a 3-months history of progressive gait disturbance. She also complained of mild backache and numbness in both legs. Her family history was not remarkable. When examined on admission, October 10, 1982, mild weakness of both legs with spasticity and sensory impairment below the level of T10 dermatome without sacral sparing were evident. Her deep tendon reflexes were hyperactive on both sides and plantar responses were extensor bilaterally. Sphincteric disturbance was not significant. The function of her cranial nerves was intact. She had neither cutaneous lesions, abdominal mass nor organomegaly. Thoracic plain X-rays revealed erosion of the right side vertebral body and pedicle of the 10th thoracic vertebra. Myelography disclosed a complete block at the same level by an epidural mass. On CT-myelogram, soft tissue density mass compressing the thoracic cord was apparent in the right epidural space of the spinal canal which extended to the paravertebral region through the right intervertebral foramen. Partial destruction of the body and the right side pedicle was easily recognized. Laminectomy from T9 to T11 exposed a large extradural mass which was encapsulated, elastic soft and pigmented in nature. The tumor was dumbbell shaped and extended to the right paravertebral region through the intervertebral foramen. Costotransversectomy was performed to excise the mass entirely. Following the total removal of the tumor, internal fixation was carried out by means of Harrington instrumentation with methylmethacrylate.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Spinal melanotic schwannoma: report of a case]. 306 Jul 51

A seven-year-old German shepherd dog was referred for acute onset regurgitation. Muscle weakness and severe dermatological disease were present. Thoracic radiographs revealed generalised megaoesophagus. Diagnostic testing revealed glucocorticoid deficiency, and rapid resolution of the megaoesophagus followed appropriate supplementation. The dog made a full recovery. Unique features of this case include a transiently positive antinuclear antibody titre and clinical features of myasthenia gravis.
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PMID:Megaoesophagus and glucocorticoid-deficient hypoadrenocorticism in a dog. 778 39

Thoracic abnormalities and respiratory muscle function were investigated in nine patients with rigid spine syndrome. A severe restrictive chest wall defect and limited mobility of the spine associated with clinically significant respiratory muscle weakness were present in all patients. Respiratory muscle strength and endurance were less than 60% of control values. Slight to moderate scoliosis was present in five patients and absent in four. Scoliosis appeared to have only a minor additional effect on respiratory muscle function. Six patients were emaciated, and one patient was underweight, but no relationship was seen between body mass index and respiratory muscle strength. Respiratory muscle function was more impaired in patients with hypoventilation than in normocapnic patients. Respiratory muscle involvement appears to be a significant feature of rigid spine syndrome, terminating in hypercapnic ventilatory failure in some patients.
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PMID:Respiratory manifestations of rigid spine syndrome. 804 43

Four cases of thoracic spondylotic myelopathy are reported, one man and three women, respectively 61, 66, 67 and 76 years old. Clinical presentation was numbness and weakness in the lower limbs in two cases, weakness alone in one and numbness alone in the last one. Diagnosis was settled by both myelography and CT-myelogram in three cases, by both MRI and CT-scan in the other one. The involved thoracic levels were both T9-T10 and T10-T11 for two cases and T11-T12 for the other one. The stenosis was due to hypertrophic ossification of the ligamentum flavum in three cases and to osteophytic changes in one. A laminectomy was performed for each patient and three patients had a significant recovery and the fourth a mild one. Thoracic myelopathy is an uncommon disease which requires a meticulous study of myelogram and now MRI to be recognized and to be cured by laminectomy. As for cervical myelopathy, it results from mechanical and ischemic factors which can lead to a definitive myelomalacia.
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PMID:[Thoracic spondylotic myelopathies. Apropos of 4 new cases]. 908 41

A 44-year-old woman was examined for progressive left lower extremity weakness and spasticity. Thoracic spine MR imaging and CT myelography showed a ventral dural defect at T7-T8 with an extradural subarachnoid fluid collection and extradural herniation of the spinal cord. Intraoperative sonography confirmed the appropriate level for dural entry and the finding of spinal cord herniation. After reduction of the herniated spinal cord, the patient experienced gradual improvement in neurologic function.
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PMID:Spontaneous thoracic spinal cord herniation through an anterior dural defect. 1073 Jun 66


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