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Biomedical subjects

J Roland

Publications and source records attributed to J Roland.

At least 181 records · Page 10Linked to original sources
PubMed1977

[Lumbar epidural veins. Normal radioanatomy (author's transl)].

Epidural venous system of the human corps are injected by a fortacryl-minium mixture then dissected with detail. These study confirms existence of two longitudinal venous plexus: one anterior and internal, one another anterior and external. There is no posterior longitudinal venous plexus.

Humans↗
PubMed1976

[Correlation between age, arteriosclerosis and elastinolytic activity of human aorta wall].

An elastolytic protease was isolated recently from human and animal aortic wall. We report here the positive correlation between the activity of human aortic elastase, the degree of atherosclerosis and age. These two parameters appear to influence independently and in an additive fashion the level of aortic elastase. There appears to be an increasing synthesis and/or liberation of aortic elastase with age. This process is accelerated in the presence of arteriosclerosis. It appears probable that the increasing elastolytic activity is mainly responsible for the fregmentation and lysis of the elastic fibers with age and arteriosclerosis as observed with histochemical techniques.

Aging↗
PubMed1976

Acute renal insufficiency due to lymphomatous infiltration of the kidneys: report of six cases.

Described are six patients with acute renal insufficiency due to histologically proven massive lymphomatous infiltration of the kidneys. All patients were admitted to a renal intensive care unit over a period of six years. Oliguria was the presenting symptom in two of the patients. This complication of lymphoma is suggested by enlargement of the kidneys and mild proteinuria in the absence of other causes of uremia and can be demonstrated by renal biopsy. Local radiation therapy performed in two patients produced improvement of renal function.

Acute Kidney Injury↗
PubMed1976

Cavum veli interpositi. Roentgen anatomy - pathology and physiology.

158 pneumoencephalographies of infants less than 2 years old were examined and 53 of them had a large cavum veli interpositi. A neuroradiological description of this cistern is given and a comparison made with injected anatomical specimens. A statistical comparison with 105 pneumoencephalographies without a cavum veli interpositi does not shown any correlation between the presence of this cistern and pathological conditions. This investigation indicates that a large cavum veli interpositi in the newborn has no relation to hydrocephalus or cerebral atrophy. The younger the child, the more frequent is the presence of this cistern, especially under eight months of age.

Brain↗
PubMed1975

[Intra and parabulbomedullary hemangioblastomas].

Intra- and para-bulbomedullary hemangioblastomas are a relatively frequent topographic variety and represent about one third of the spinal cord cases. The surgical approach is particularly difficult in this location, because of adhesion or infiltration of the brain stem by the hemangioblastoma. The authors correlate the angiographic signs and the anatomical findings obtained during surgery. Four topographic types are described: intra-bulbomedullary tumors, usually allowing partial resection only; tumors of the floor of the IVth ventricle extending between the cerebellar tonsils without any infiltration of the brain stem, allowing complete resection; tumors of the cerebellar tonsils with a lateral para-bulbar extension which should allow complete resection, but present with difficult diagnostic problems on angiography; tumors of the cerebellar tonsils with a midline extension present with a particular difficult angiographic diagnosis, but should also allow complete resection.

Adolescent↗