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The conservative management of the Negro nose.

The difficulties in obtaining an adequate result in the Negroid nose have been elucidated by other authors. Paucity of lobular cartilage; the flat dorsum; short columella; wide flaring nares; and skin that tends to keloid formation have led many surgeons to attempt radical surgical techniques to obtain rather limited results. To circumvent the complications in the more radical procedures, a more conservative concept of an entirely intranasal operation without external skin incisions is outlined. This technique consists of tip rotation andlobular cartilage trimming; the use of a non-absorbable basal bunching suture, and the placement of a dorsal implant without performing osteotomies. A comparison with other techniques is made, as well as surgical aims, limitations and a discussion of results. Pertinent illustrations and photographs are presented.

Black People↗

[Evaluation of the thick smear in a field condition in a malaria endemic area in the Middle Region of Rio Negro, Amazon].

In order to assess the reliability of the thick smear in a Plasmodium infection area, 322 thick smears were examined by a trained microscopist in field conditions. Later, the same smears were examined by an experience microscopist in ideal laboratory conditions. Reliability was measured by the Kappa index. In symptomatic malaria patients the Kappa index was 0.91 (IC 95% 0.57-0.98 p<0.05) while in asymptomatic Plasmodium infection the Kappa index was as low as 0.42 (IC 95% 0.15-0.68 p<0.05). In areas of asymptomatic infection, improvement in the sensibility of thick smears by increasing the number of microscopic fields read or using other more accurate diagnostic malaria techniques alone or in combination is fundamental.

Animals↗

Pterigodermatites (Paucipectines) spinicaudatis n. sp. (Nematoda: Rictularidae) from Dromiciops australis (Marsupialia: Microbiotheriidae) in Bariloche, Rio Negro, Argentina. Biogeographical distribution and host-parasite relationships.

Pterigodermatites (P.) spinicaudatis sp. n. from Dromiciops australis is proposed and described. The simple morphology of the ovijector and the presence of a well developed spine between the two cuticular projections at the caudal extremity of the female distinguish the studied nematode from the remainder species of the genus parasitizing South American Edentata, marsupials and cricetid rodents. The distribution area of the hosts of the different species of P. (P.) are given. The studied genus does not parasitize any Australian marsupials. It was found in the endemic South American Microbiotheriidae. This fact suggests from a parasitological point of view that D. australis is not related to the Australian marsupials but to the South American ones.

Animals↗