Differential Diptera succession patterns onto partially burned and unburned pig carrion in southeastern Brazil / Diferenças no padrão de sucessão de Diptera em carcaças de porco parcialmente carbonizadas e não carbonizadas

In the present contribution we compared the entomological succession pattern of a burned carcass with that of an unburned one. For that, we used domestic pig carcasses and focused on Calliphoridae, Muscidae and Sarcophagidae flies, because they are the ones most commonly used in Postmortem Interval estimates. Adult and immature flies were collected daily. A total of 27 species and 2,498 specimens were collected, 1,295 specimens of 26 species from the partially burned carcass and 1,203 specimens of 22 species from the control carcass (unburned). The species composition in the two samples differed, and the results of the similarity measures were 0.875 by Sorensen and 0.756 by Bray-Curtis index. The results obtained for both carcasses also differ with respect to the decomposition process, indicating that the post mortem interval would be underestimated if the entomological succession pattern observed for a carcass under normal conditions was applied to a carbonized carcass.(AU)

Nesta contribuição, nós comparamos o padrão de sucessão entomológica de uma carcaça carbonizada com outra não carbonizada. Para tal, nós usamos carcaças de porcos domésticos e focamos nos dípteros Calliphoridae, Muscidae e Sarcophagidae, por estes serem os grupos de insetos mais comumente usados na estimativa do intervalo pós-morte. Moscas adultas e seus imaturos foram coletados diariamente. Um total de 27 espécies e 2.498 espécimes foi coletado, 1.295 espécimes de 26 espécies na carcaça parcialmente carbonizada e 1.203 espécimes de 22 espécies na carcaça controle (não carbonizada). A composição específica das duas amostras foi diferente e os cálculos de similaridade resultantes foram 0,875 pelo índice de Sorensen e 0,756 pelo índice de Bray-Curtis. Os resultados obtidos para ambas as carcaças também diferiram em relação ao processo de decomposição, indicando que o intervalo pós-morte poderia ser subestimado se o padrão de sucessão entomológica observado na decomposição de uma carcaça sob condições normais fosse aplicado a uma carcaça carbonizada.(AU)

Differential Diptera succession patterns onto partially burned and unburned pig carrion in southeastern Brazil.

In the present contribution we compared the entomological succession pattern of a burned carcass with that of an unburned one. For that, we used domestic pig carcasses and focused on Calliphoridae, Muscidae and Sarcophagidae flies, because they are the ones most commonly used in Postmortem Interval estimates. Adult and immature flies were collected daily. A total of 27 species and 2,498 specimens were collected, 1,295 specimens of 26 species from the partially burned carcass and 1,203 specimens of 22 species from the control carcass (unburned). The species composition in the two samples differed, and the results of the similarity measures were 0.875 by Sorensen and 0.756 by Bray-Curtis index. The results obtained for both carcasses also differ with respect to the decomposition process, indicating that the post mortem interval would be underestimated if the entomological succession pattern observed for a carcass under normal conditions was applied to a carbonized carcass.

Colorectal adenocarcinoma in childhood and adolescent. Report of 11 cases and review of the literature.

Eleven new cases of colorectal carcinoma in children (0-15 years of age) are added to the 212 cases already described in the literature. Mucinous adenocarcinoma was the most frequent histological type. Acute abdominal obstruction was the most frequent presentation. A radiologic diagnosis of malignancy was made in only six of eleven cases. The interval between onset of clinical symptoms and diagnosis ranged from two days to one year. Duration of symptoms, pathologic findings, stage, and prognosis differed markedly as compared with adult colorectal carcinomas. In spite of its rarity, colorectal malignancies may occur in children.

Tumores renais primarios metastatizantes para osso na infancia. / Bone-metastasizing primary renal tumors in children

Sao discutidos sete casos de tumor renal na infancia com compromentimento osseo importante, tendo sido os seis primeiros casos ja submetidos a publicacao previa. Essas neoplasias haviam sido anteriormente classificadas como tumores de Wilms de caracteristicas atipicas. A revisao histologica, feita a luz dos novos conceitos, reclassificou-as como: tumor renal da infancia metastatizante para osso - TRIMO (tres casos), rabdomiossarcoma (um caso), sarcoma indiferenciado (dois casos) e neoplasia maligna indiferenciada (um caso)

Pneumonias lipoides exogenas na infancia. / Exogenous lipoid pneumonia in infants

Quatro casos de pneumonias lipoides em criancas que aspiraram oleo mineral sao apresentados. Em tres houve iatrogenia. Em todos o diagnostico foi estabelecido associando uma historia de ingestao de oleo com radiografias, mostrando infiltrados difusos que nao involuiram com a terapeutica. Houve confirmacao anatomopatologica em tres casos