Biomedical subjects
Publications and source records attributed to A Dupre.
One case of malignant degeneration on an ileostomy following proctocolectomy for familial intestinal polyposis is reported. On the basis of a review of the literature, the nosological context of this disease, the etiopathogenesis of cancerization and the surgical consequences are determined.
A series of 50 patients with carcinoma of the breast underwent omental transposition. This palliative procedure is indicated for recurrences after conservative treatment, radiation necrosis and Stage III or IV ulcerated tumors. The operative technique is described in detail. Omentoplasties were performed upon 33 right and 17 left mammary areas. Forty-five right pedicled flaps and only four left areas were used. One patient died on the fourth postoperative day because of massive pulmonary embolus. Local repair was satisfactory in 76 per cent of the patients. Four patients presented with herniation of the abdominal wall at the site of omental tunneling. In three, the treatment consisted of sectioning the vascular pedicle and reinforcing the parietal closure with Dacron (polyester fiber) mesh.
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A patient had an unusual pigmentary disease induced by titanium dioxide. The use of a topical cream containing titanium dioxide caused a xanthomalike appearance on the patient's penis. Electron probe microanalysis was valuable in establishing the cause of this balanitis.
A 51-year-old Caucasian man presented with a yellowish lesion containing multiple protuberances over his right cheek. Light and electron microscopic examination revealed an anhistic substance lacking definite characteristics of either amyloid or collid milium. The term paracolloid degeneration of the skin is introduced to designate this substance which is believed to derive from collagen. A review of the literature showed similar cases previously published under the names of nodular amyloidosis or disseminated colloid.
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We report a very curious case of a condition which has never been described before. Its features are comparable but not quite identical with those of Christensen's saltpetre-induced PXE which the author considers to be an exogenous variety of pseudoxanthoma elasticum. Since our case appeared spontaneously without any accidental episode we prefer to designate it under the name 'localized PXE'. The chequered appearance of the lesions seems to be the characteristic feature of the disease.
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The osmotic properties of human lymphocytes isolated from 15 ml of venous blood were examined. Measurements of the permeability of the membrane to water under an osmotic gradient were also made. The Boyle-Van't Hoff relation held very well for the human lymphocyte when the cells were shrunken in hyperosmotic media to concentrations twice isosmotic. The volume of osmotically inactive material or "b" value averaged 32% of the mean corpuscular volume. These values were independent of temperature. Ponder's R ranged between 0.8 and 0.9. The average value for Lp, the hydralic coefficient was 0.46 mu/min atm +/- 0.02 (S.E.M.) at 25 degrees C. No significant effect of age, sex, or race was noted. The effect of temperature between 10 degrees C and 37 degrees C was measured and heats of activation between 11.1 and 17.4 kcal/mole were calculated with a mean of 14.1 kcal/mole +/- 1.6 (S.E.M.). Concanavalin A at 10 microgram/1.5 X 10(6) lymphocytes produced blastogenesis of 25% or more of the lymphocytes without clumping, agglutination, or toxicity. The mean corpuscular volume increased by 21% after 72 hours due to an increase in the "b" value which increased by 80%. The volume of free water remained constant. Histograms of the distribution of cell volumes showed that volume changes were uniform throughout the population with no evidence of agglutination of clumping. The significance of these results is discussed in the context of membrane fluidity and the state of intracellular water.
We saw three patients with inflammatory linear verrucose epidermal nevus (ILVEN). The purpose of this study is to better delineate the histopathologic features of this type of nevus. In fact, in all three cases very particular, specific histologic lesions have been noted that permit us to better distinguish this recently outlined entity. The histologic features were depressed, cup-like areas of hyper-granulosis with overlying orthokeratotic hyperkeratosis, alternating (with sharp dermacation) with raised, level areas of agranulosis with overlying parakeratotic hyperkeratosis.
The following aspects of the classic geographic tongue are discussed: clinical polymorphism with the appearance of annulus migrans, histological appearacne of the spongiform pustule, frequent association with pustular psoriasis and related diseases, and its relationship to psoriasis buccalis. Two cases of geographic lip are described in which annulus migrans was present. In one case, the geographic lip was associated with a plicated lip, a labial form of plicated tongue.