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Biomedical subjects

F S Vines

Publications and source records attributed to F S Vines.

At least 37 records · Page 2Linked to original sources
PubMed1981

Pulmonary arteriography in patients with hilar or mediastinal masses and lung scans suggesting pulmonary embolism.

Three patients with clinical features of pulmonary embolism were evaluated by chest roentgenograms, perfusion lung scanning, and pulmonary arteriography. All of them had hilar and/or mediastinal masses which were obvious in one patient, subtle in another, and not discernible in the third. The three patients had abnormalities on lung scans, including unilateral absence of perfusion in two and lobar absence of perfusion in one. The extent of the perfusion defects correlated poorly with the roentgenographically visible masses. Pulmonary arteriograms were abnormal but none showed evidence of pulmonary embolism. Lung scanning is often unreliable in establishing the diagnosis of pulmonary embolism in patients with hilar or mediastinal masses. Pulmonary arteriography may demonstrate the mass if it is vascular, or may show extrinsic compression upon the pulmonary vasculature. Lung scanning may be of value in localizing a mass not visible on chest roentgenogram in a patient suspected of harboring a bronchogenic carcinoma.

Adult↗
PubMed1980

Ulcerlike projections: a precursor angiographic sign to thoracic aortic dissection.

The clinical and plain radiographic findings of thoracic aortic dissection may not be specific; thoracic aortography is the definitive diagnostic procedure. Ulcerlike projections of contrast material are not commonly found on thoracic aortography, but may be a precursor angiographic sign of dissection. Two patients with ulcerlike outpouchings are presented. In one, the evolution of aortic dissection was documented by three serial aortograms. It began with a small "ulcer" in the ascending aorta that became larger and finally progressed into the typical angiographic appearance. In the other, thoracic aortography demonstrated an ulcerlike projection in the ascending aorta. In both cases, the diagnosis of dissecting hematoma was confirmed by surgery and pathologic examination of the resected specimens. Thoracic aortography in several projections is necessary for demonstration of these ulcerlike outpouchings because they may be evident in only one projection. Conceivably, their recognition may permit earlier diagnosis of aortic dissection and the institution of appropriate treatment.

Aged↗
PubMed1980

The limitation of computerized tomographic diagnosis of intracranial midline cysts.

The diagnosis of intracranial cystic lesions is greatly facilitated by cranial computerized tomography (CT) which eliminates the need for further invasive neuroradiological studies. However, cystic lesions with thin walls that do not enhance following intravenous contrast infusion, especially when they are located in the midline and at the base of the skull, may become a diagnostic problem preventing proper management and therapy. We discuss 12 midline intracranial lesions, including one that is noncystic, to emphasize the limitations of CT in showing these lesions and the need for further diagnostic studies such as pneumoencephalography and metrizamide CT. The limitations of CT in diagnosing these lesions are related to the variations in the anatomy at the base of the skull (supra-sellar region); the varying pathological nature and behavior of certain cystic lesions such as epidermoid tumors and craniopharyngiomas; and the compromising of the spatial and density resolutions due to the partial volume effect. The complementary role of studies such as pneumoencephalography and CT metrizamide cisternography for the evaluation of the dynamics of the cerebrospinal fluid that are necessary for the proper management and therapy of patients is discussed.

Adult↗
PubMed1979

Computed tomography of a double inferior vena cava: the "double cava" sign.

Right-sided retroperitoneal adenopathy or right adrenal masses demonstrated by CT in cross sectional display may mimic the CT appearance of the inferior- vena cava. This finding has been recently described as the "double cava" sign. The authors report this sign in a patient who actually has a double IVC. "CT angiography" with the technique described herein, will determine that the retroperitoneal structures demonstrated by CT are indeed vessels rather than enlarged nodes or adrenal masses.

Adrenal Gland Neoplasms↗
PubMed1979

Evaluation of retroperitoneal hemorrhage by computed tomography before and after translumbar aortography.

Twenty patients were prospectively studied by computed tomography (CT) before and after undergoing translumbar aortography (TLA). Changes indicative of retroperitoneal bleeding were depicted by CT in all 20 patients despite the predominantly small size of the hematomas. CT scans obtained within two hours after TLA demonstrated: (a) thickening of the diaphragmatic crura, (b) enlargement of the left psoas muscle, and (c) obscuration of the aortic outline by soft-tissue density. Follow-up scans at 24 hours (10 patients) and one week (3 patients) revealed marked decrease in abnormalities, suggesting rapid resorption of the hematoma.

Aged↗
PubMed1979

Supratentorial arteriovenous malformation presenting with cerebellar dysfunction.

A young patient with classic clinical presentation and radiological findings of an arteriovenous malformation subsequently developed a spontaneous occlusion of the straight sinus. Although the lesion was supratentorial, thrombosis of the straight sinus and cerebellar cortical veins resulted in signs and symptoms of cerebellar dysfunction. Successful surgical excision was performed with good results.

Adult↗
PubMed1978

Post-traumatic hydrocephalus in patients with severe head injury.

Computerized tomography was performed on 100 consecutive patients suffering from severe head injury, on admission, after 3, 5, 14, and 90 days and 1 year. Ventricular enlargement was evaluated in the surviving patients based upon serial CT examinations. The presence or absence of ventricular enlargement was correlated with the clinical outcome. The study indicates that a significant correlation does exist between the outcome and ventricular size. Hydrocephalus was seen in only four out of the 29 patients who developed ventriculomegaly.

Adolescent↗
PubMed1977

The radiologic diagnosis of pneumocele of the maxillary sinus.

Pneumocele of the maxillary sinus is a recently described disease, first noted in 1974. Three subsequent cases have been encountered. Pneumocele refers to an expansile cystic air-containing mass, occupying the entire maxillary sinus, and lined by the original attenuated mucous membrane. It is analogous to mucocele, but containing air rather than fluid content. Radiologic signs are diagnostic, and it is the purpose of this presentation to enumerate these radiologic findings.

Adolescent↗
PubMed1976

Proptosis secondary to pneumocele of the maxillary sinus.

The third known case of a pneumocele of the maxillary sinus is reported. Radiographic findings included hyperlucency of a maxillary sinus with generalized expansion of its borders. Bone dehiscence was also visible with tomography. The present case emphasizes a gradual onset of clinical signs and manifested primarily by proptosis. Possible mechanisms in the production of this deformity are discussed.

Exophthalmos↗
PubMed1975

Embolic posterior cerebral artery occlusion secondary to spondylitic vertebral artery compression. Case report.

The authors report a case of isolated homonymous hemianopsia secondary to embolic occlusion of the posterior cerebral artery. The cause of embolism was demonstrated to be spondylitic vertebral artery compression. The importance of arteriography is emphasized since the clinical syndrome may be nonspecific and myelographic or plain x-ray changes may be minimal. Surgical therapy is also discussed.

Adult↗
PubMed1975

Dural sinus occlusion in leukemia.

The case of a 7-year-old child with acute lymphocytic leukemia who, while in relapse, developed a superior sagittal sinus thrombosis is documented by angiography and post-mortem examination. Review of the literature suggests that cerebral spinal fluid (CSF) pleocytosis which usually accompanies the arachnoid infiltration of central nervous system (CNS) leukemia may be absent in some patients as in this case. In the absence of CSF pleocytosis, cerebral venous sinus thrombosis may mimic the other signs and symptoms of CNS leukemia and consequently may be a more frequent complication of acute leukemia than is presently appreciated. Therapy directed to the CSF axis generally would not under these circumstances be appropriate.

Brain↗