Search PubMed⌕ Search

Biomedical subjects

K Aterman

Publications and source records attributed to K Aterman.

At least 37 records · Page 2Linked to original sources
PubMed1986

Stenosis of individual pulmonary veins: radiologic findings.

Congenital stenosis of individual pulmonary veins is uncommon. Of the 49 cases reported, four were seen at the IWK Hospital for Children and are reported here. Plain radiographs show a shift of the heart toward the side of major involvement, Kerley B lines, fluid in the fissures, and interstitial edema of the affected lobes. These findings, while subtle, should nevertheless suggest stenosis. Technetium-99m macro-aggregate lung perfusion scans show absence of or diminished perfusion of the affected lobes. The diagnosis can usually be confirmed with angiography. Congenital stenosis of individual pulmonary veins should be considered in children with repeated pulmonary infections, dyspnea, failure to thrive, hemoptysis, or unexplained pulmonary hypertension.

Adult↗
PubMed1984

The use of BMC Chemstrip 9 in the macroscopic urine screening procedure.

The usefulness of a stick test for detection of leukocyte esterase activity in urine as part of a "macroscopic screen" was examined, as well as the efficiency of our existing broad screening criteria for detecting abnormalities in urine without microscopic examination. In a study of 923 unselected urine samples submitted to the laboratory, a false-negative rate of 0.6% was observed as judged by microscopic examination. The results of our present studies tend to confirm the usefulness of our "screen" program. The new leukocyte esterase test has been demonstrated to be an important adjunct to the macroscopic screening program.

Esterases↗
PubMed1984

Hemorrhagic panniculitis caused by atheromatous embolization. A case report and brief review.

This brief review of the phenomenon of atheromatous emboli to the skin was prompted by the observation of a specimen in which a sizable mass of hemorrhagic panniculitis clinically simulated a "cyst" or "tumor" in a woman aged 90 years. While atheromatous embolization in other organs is well known and has been described in detail, the phenomenon in the skin has infrequently been reported, and therefore the attention of dermatopathologists is once more drawn to this occurrence.

Adipose Tissue↗
PubMed1984

The syndrome of caudal dysplasia: a review, including etiologic considerations and evidence of heterogeneity.

The syndrome of caudal dysplasia (CDS) and the wide spectrum of associated skeletal and other anomalies are reviewed, and a further case of this disorder is presented. The syndrome of CDS should be distinguished from the familial forms of sacral dysgenesis, three forms of which are tentatively identified. Two of these usually involve some degree of "hemi-sacrum." The third is usually manifested as partial sacral agenesis with absent distal segments. All these familial types are probably genetic dominants, and none is associated with maternal diabetes. Usually CDS is not familial, but it often is associated with a tendency toward diabetes in the mother. The suggestion is advanced here that CDS is the result of a combination of two principal factors represented by (a) a maternal diabetic tendency and (b) separate nondiabetogenic genes. Determination of the human leucocyte antigen (HLA) haplotypes involved in CDS is suggested to investigate the possibility of genetically distinctive factors in this condition.

Abnormalities, Multiple↗
PubMed1984

Presumed primary malignant melanoma of the gallbladder. Report of a case and a review of literature.

Primary malignant melanomas of the gallbladder are rare lesions that have been the subject of debate. Only 11 such cases have been reported. The debate is reviewed and conflicting opinions of workers in the field are discussed. Attention is drawn to some of the features that are said to characterize the lesions presumed to be primary melanomas of the gallbladder, such as polypoid growth, "junctional" changes in the normal mucosa, and, above all, absence of other demonstrable primary foci of malignant melanomas. What at first appeared to be the 12th case of this rare entity, and in the youngest patient at that, is now described by light and electron microscopy, but a more likely possibility, supported by biopsy of the skin, is that an undiagnosed malignant melanoma in the skin had undergone complete regression after it had metastasized to the gallbladder.

Adult↗
PubMed1983

Presumed homozygous achondroplasia. A review and report of a further case.

Presumptive homozygous achondroplasia (PHA) is a rare disorder. The clinical and detailed histological findings of the fifth case of this chondrodystrophy, studied in detail, are presented here. There is a severe disorder of the normal growth of the long bones, whose nature, however, is not well understood; it shows some resemblance to the pathological changes described in thanatophoric dysplasia which also presents many clinical similarities. The aspect of greatest interest, however, is the relation of PHA to the "classical" form of achondroplasia. Some investigators have maintained that in that disorder there are no significant qualitative, and at most some quantitative, alterations in the growth plate to be demonstrated by histologic examination, but have not explained the apparent abnormalities in the development of the bones and in the external phenotype, which appears to be a milder expression of that seen in PHA. In view of the genetic relationship and external phenotypic similarity one would also have expected in "classical" achondroplasia a milder form of the severe changes seen in PHA. Judging by some of the published reports this is not the case. Attention is drawn to this intriguing discrepancy.

Achondroplasia↗
PubMed1983

Monomorphic adenoma of the nasal septum in a newborn (case report and ultrastructural findings).

Salivary gland type adenomas of the nasal septum are rare tumors in adults and even rarer in children. There has been no previous report of such a tumor in a neonate. We have described a tumor of the nasal septum whose light and electron microscopic appearances are consistent with an origin from minor salivary gland or nasal mucous glands. Ultrastructural findings presented do not suggest an origin from the embryonic organ of Jacobson (vomeronasal organ). The biological behaviour of this tumor in the neonate is unknown. A study of similar cases will be necessary to elucidate the incidence and natural history of intranasal adenomas in the neonate.

Adenoma↗
PubMed1983

The brothers Lumière. Pioneers in medical photography.

A brief historical sketch of the brothers Lumière, the inventors of the cinématographe, is presented. Particular emphasis is placed on their perfection of "Autochromes," photographic plates suitable for color photography, and on their foresight in putting these advances to use in medical illustrations.

France↗
PubMed1980

Salicylate levels in a stillborn infant born to a drug-addicted mother, with comments on pathology and analytical methodology.

A 34-year-old mother habituated to the excessive use of salicylates gave birth to a still born infant with a salicylate level of 25 mg/dL in the whole blood and 12 mg% in the liver. The analytical methodology for the determination of salicylates is described. Pathological findings included an acute chorioamnionitis and the widespread presence of congestion of the viscera with petechial hemorrhages-changes which are not uncommonly seen in infants suffering from intrauterine anoxia. The published findings on the effects of salicylates on the human fetus and on reported fetal blood levels have been reviewed.

Adult↗
PubMed1979

Prevention of group-B beta-haemolytic streptococcal septicaemia in low-birth-weight neonates by penicillin administered within two hours of birth.

Between January, 1969, and May, 1974, 11 of 1208 low-birth-weight infants had early onset group-B streptococcal septicaemia. All 11 infants were of less than 35 weeks gestational age and 9 presented with the clinical and radiological signs of idiopathic respiratory distress syndrome. 10 died. Antibotics were given to 3 infants only, but not before the age of 12 h. From June, 1974, infants less than 35 weeks gestational age, and from January, 1977, infants less than 2500 g, received systemic penicillin by 2 h of age after throat, ear, umbilical, rectal, and blood cultures. Penicillin was continued for 10 days if group-B streptococci were isolated but was stopped at 48 h of age if all cultures were negative. Between June, 1974, and November, 1977, there was 1 case of septicaemia and no death from group-B streptococal infection in the 983 low-birth-weight infants born during this period. These data suggest that systemic penicillin from birth prevents low-birth-weight infants from dying of group-B streptococcal infection.

Cross Infection↗
PubMed1979

Shedding of peripheral cytoplasm - a mechanism of liver cell atrophy in human amyloidosis.

A liver biopsy specimen from a case of primary amyloidosis was investigated by electron microscopy. The cytoplasmic periphery of the hepatocytes showed degenerativechanges which are interpreted as indicating shedding of peripheral parts of the cytoplasm. Two main variants of this process could be discerned: 1) Protrusion and sequestration of hernia-like blebs of cytoplasm, and 2) shedding of vesicles derived from degenerated endoplasmic reticulum. In the latter case transient defects of the plasma membrane seem to be relevance. Endoplasmic reticulum and cytoplasmic ground substance appeared to be shed preferentially, whereas mitochondria are retained within the cell. As a consequence the fractional volume of the mitochondria in the cytoplasm of atrophic cells is markedly increased. Shedding of peripheral cytoplasm, therefore, seems to be an effective mechanism enabeling the cell to adapt the mass and the composition of its cytoplasm to an unfavourable environment.

Amyloidosis↗
PubMed1979

Right-sided juxtaposition of the atrial appendages in an anencephalic.

A case of the uncommon right-sided juxtaposition of the atrial appendages is presented--to our knowledge the 17th instance reported so far. The interest of this case resides in the fact that there were no associated major cardiac anomalies, and that it occurred in an anencephalic female. It is the second reported case of this association. Both cases had in common the presence of ventricular D-looping, normal relationships of the great arteries and only minor cardiac defects. The absence of major cardiac anomalies, in contrast to the more common left-sided juxtaposition, and the association with anencephaly which has not yet been reported in the left-sided variant of juxtaposition, are features which have to be emphasised.

Anencephaly↗
PubMed1979

Aortopulmonary window or aortopulmonary communication?

Two patients had a vessel-like aortopulmonary "window" which could be ligated without the institution of cardiopulmonary bypass. While embryologically and functionally these communications are identical to the classic aortopulmonary "window," it is suggested that the term "aortopulmonary communication" is more appropriate.

Aorta↗