Genital myiasis associated with genital piercing. Case report

ABSTRACT CONTEXT: Myiasis is caused by larval infestation that usually occurs in exposed wounds. Dermatobia hominis is the most common fly species responsible for this parasitic infection. Genital piercing is an ornamental practice used in certain social circles. At placement, it transverses the skin surface and, as such, may be related to complications. CASE REPORT: We report a case of a 31-year-old man with a history of wound infection secondary to genital piercing who was exposed to an environment with flies, leading to myiasis. Mechanical removal and systemic antiparasitic drugs are possible treatments for myiasis. However, prevention that includes wound cleaning and dressing is the best way to avoid this disease. CONCLUSIONS: Genital piercing can lead to potential complications and myiasis may occur when skin lesions are not properly treated.

Estudo comparativo entre pólipos hiperplásicos e adenomas colorretais em pacientes submetidos à colonoscopia / A comparative study between hyperplastic polyps and colorectal adenomasin patients who underwent colonoscopy

Introdução: O câncer colorretal é o terceiro tumor maligno mais incidente no mundo e o quarto no Brasil, sendo que nas regiões Sul e Sudeste, é a terceira causa de morte em ambos os sexos. Os pólipos adenomatosos colorretais têm probabilidade de evoluírem para carcinomas, enquanto pólipos hiperplásicos são classificados como benignos. O objetivo deste estudo foi comparar os pólipos adenomatosos e hiperplásicos, analisando diferentes variáveis. Métodos: Avaliamos questionários e exames histológicos de pacientes submetidos à colonoscopia, realizadas pelo Serviço de Coloproctologia do Hospital Universitário da Ulbra, em Canoas, RS. Analisamos a relação entre os tipos histológicos de pólipos e número de pólipos por paciente, idade e sexo dos pacientes, dimensão, localização, presença de tumor associado aos pólipos e grau de displasia de cada pólipo. Resultados: Foram analisados 492 questionários. A idade dos pacientes submetidos ao exame variou de 11 a 91 anos, sendo a média de 56,8 ± 13,47 anos. Dentre os pacientes estudados, 48% tinham adenomas, 37% possuíam pólipos hiperplásicos e 15% apresentavam simultaneamente adenomas e pólipos hiperplásicos. Entre os pólipos maiores de 1 centímetro, encontramos 60% de adenomas. Nos cólons, 51,6% dos pólipos eram adenomas enquanto 74% dos pólipos hiperplásicos se apresentaram no reto e sigmoide. Conclusão: Os pólipos hiperplásicos ocorreram mais frequentemente no reto e sigmoide, enquanto os adenomas encontram-se nos cólons. Não foi encontrada associação entre o tipo histológico de pólipo e seu tamanho. Não encontramos associação entre o tipo histológico dos pólipos e presença concomitante de tumor.

Introduction: Colorectal cancer is the third most frequent malignant tumor in the world and the fourth in Brazil, and in the south and southeast of Brazil it is the third leading cause of death in both sexes. The colorectal adenomatous polyps are likely to develop into carcinomas, whereas hyperplastic polyps are classified as benign. The objective of this study was to compare the hyperplastic and adenomatous polyps by analyzing different variables. Methods: We evaluated the questionnaires and histological studies of patients undergoing colonoscopy in the Unit of Coloproctology of the University Hospital of Ulbra in Canoas, RS. We analyzed the relationship between histologic types of polyps and number of polyps per patient, age and sex, size, location, presence of tumors associated with the polyps, and degree of dysplasia of each polyp. Results: 492 questionnaires were analyzed. The age of patients undergoing the survey ranged from 11 to 91 years, with a mean of 56.8 ± 13.47 years. Among the patients studied 48% had adenomas, 37% had hyperplastic polyps and 15% had both adenomas and hyperplastic polyps. Among the polyps larger than 1 cm, we found 60% of adenomas. In the colons, 51.6% of the polyps were adenomas and 74% of the hyperplastic polyps occurred in the rectum and sigmoid. Conclusion: Hyperplastic polyps were more frequent in the rectum and sigmoid, while the tumors are found in the colon. No association was found between histological type of polyp and its size. We found no association between histological type of polyps and concomitant tumor.