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Biomedical subjects

D H Carlson

Publications and source records attributed to D H Carlson.

At least 19 recordsLinked to original sources
PubMed1982

Serpentine lumbar nerve roots.

This is a report of six patients with serpentine nerve roots found in 15 examples of near-block in 110 consecutive myelograms. None of the other myelograms showed such serpentine roots and some degree of obstruction appears necessary for their formation, leading to intermittent stretching of the nerve roots over large spurs and gradual advancement of the nerve root to a higher level. Serpentine roots are not to be confused with other lesions such as arteriovenous malformations. In patients with a high degree of block, serpentine roots are probably relatively common when investigated by methods such as those used here.

Aged↗
PubMed1980

Unilateral arteriomegaly.

We have described a patient with unilateral arteriomegaly. The dilated, tortuous arteries with markedly prolonged flow are characteristic, but the unilaterality has not been previously reported. The arteriomegalic femoral artery was used for a femorofemoral graft for the opposite side, with a good result.

Aged↗
PubMed1979

Intrarenal pheochromocytoma: report of a case.

To our knowledge the first case of an intrarenal pheochromocytoma is reported. It is important to realize that an intrarenal or apparent intrarenal mass in a hypertensive patient might be a pheochromocytoma so that appropriate precautions can be taken.

Adrenal Glands↗
PubMed1979

Variability of unilateral epiphyseal dysplasia (dysplasia epiphysealis hemimelica).

Nine cases of dysplasia epiphysealis hemimelica (Trevor disease) are reviewed. This osteocartilaginous process arises from the epiphysis and most commonly involves the ankle and knee. While usually mild, 3 cases of greater severity were found with associated arrest of the growth plate. One mild and 2 severe cases are presented in greater detail. The term unilateral epiphyseal dysplasia is proposed as the condition may involve the upper extremity and often involves more than half the epiphysis.

Ankle↗
PubMed1978

Benign multilocal cystic nephroma.

Three cases of multilocular cystic nephroma are described. This entity differs from congenital multicystic kidney and adult polycystic disease in that it involves only a segment of one kidney. While the excretory urogram, nephrotomogram, and arteriogram show the lesion to be primarily avascular, the two cases studied by ultrasound were predominantly solid. This finding is felt to relate to the small size of the cysts as well as the presence of some solid primitive components. Because it is difficult to differentiate this lesion from an avascular renal carcinoma, surgical biopsy should be considered to help avoid a needless nephrectomy.

Adult↗
PubMed1978

Visualization of vascular structures during routine nephrotomography.

Using an immediate nephrotomogram at 30 to 40 seconds, one can show the nephrographic phase and often visualized the renal vein, splenic vein, and portal vein. In a series of 200 consecutive patients, technique was adequate in 169. Some visualization of the renal veins was obtained in 54% and the splenic vein was demonstrated in 25% of the immediate nephrotomograms.

Humans↗
PubMed1978

Leiomyosarcoma of the thorax.

Leiomyosarcoma within the thorax is a rare lesion. This report describes an endobronchial lesion presenting with atelectasis, a parenchymal lesion presenting as a mass, and a rare extra-pleural lesion arising in the chest wall. The prognosis is generally poor; our 3 patients died within about 1 year of diagnosis.

Adult↗