RESUMO
A lipoaspiração ultrassônica vem se tornando bastante indicada no tratamento das ginecomastias, devi- do à boa qualidade dos resultados obtidos. O presente estudo relata 11 casos de ginecomastia glandular e glândulo-gordurosa, no período de 1999 a 2002, submetidos à lipoaspiração ultrassônica e lipoaspiração convencional complementar, com cânulas de médio e pequeno calibres. Foi utilizado o equipamento Lisonix 2000, numa amplitude de 5, ou seja, 50 da potência do aparelho, com cânulas de 32 cm de comprimento e 3 mm de diâmetro. O volume médio aspirado, pela lipoaspiração ultrassônica, foi de 222 ml na mama direita e de 225 ml na mama esquerda, enquanto que o volume aspirado por lipoaspiração convencional foi de 200 ml e de 205 ml, respectivamente, totalizando em média, 852 ml por paciente. O tempo médio de lipoaspiração ultrassônica foi de 7 minutos e 12 segundos. Podemos concluir que, a lipoaspiração ultrassônica tem sua indicação, tanto em ginecomastia gordurosa quanto glandular, com uma evolução pós- operatória mais rápida, sem a necessidade de uma incisão na aréola e ressecção cirúrgica da glândula ma- mária.
The ultrasound assisted liposuction is becoming more popular in treating gynecomastias. This paper reports 11 cases of fatty-glandular breasts treated from 1999 to 2002 at private clinic, which were undertaken to ultrasound-assisted lipoplasty and complementary conventional liposuction, with small and medium canulas. Lisonix 2000 was used with 32 cm length canulas and diameter of 3 mm.The medium volume aspirated by ultrasound- assisted lipoplasty in the right breast was 222 ml and 225 ml were aspirated from the left breast, while the volume aspirated by conventional liposuction was 200 ml and 205 ml, respectively, with a total of 852 ml per patient. The medium time of liposuction for each side was 7 minutes and 12 seconds. The ultrasound-assisted lipoplasty is indicated either in fatty or glandular gynecomastia, with better results when compared with conventional liposuction. It has a faster recovery period without the need for glandular tissue resection.
Assuntos
Humanos , Masculino , Ginecomastia , Lipectomia , Ginecomastia/cirurgia , Ginecomastia/diagnóstico , Ginecomastia/metabolismo , Ginecomastia/patologia , LipectomiaRESUMO
A study of a large cell calcifying Sertoli cell tumor of the testis associated with bilateral gynecomastia in an 8-year-old boy is presented. Macroscopically, the two testes showed multiple, large, and hard calcified nodules. Histology revealed clusters or cords of tumor cells with foci of calcifications as well as evidences, in the adjacent testicular parenchyma, of initiation of gonadal development, such as early signs of spermatogenesis and sparse Leydig cell differentiation. In vivo, serum hormone studies showed gonadotropin-independent gonadal activity. After orchidectomy two macroscopically distinct fractions of the removed testes, tumoral and extratumoral, were processed separately for cell isolation and culture. The secretion of testosterone, androstenedione, and 17-hydroxyprogesterone to the medium on day 6 of culture showed that steroidogenesis in cells of the extratumoral fraction was more active than in the tumoral fraction. On the other hand, tumoral fraction cells showed much higher aromatase activity than extratumoral cells. Furthermore, conditioned medium of tumoral fraction cells was able to stimulate testosterone secretion when it was added to subcultures of testicular cells isolated from a control subject. It is postulated that tumoral cells might have stimulated neighboring interstitial cells to differentiate into Leydig cells and to secrete androgens, which in turn might have been aromatized to estrogens by tumoral cells.
Assuntos
Ginecomastia/metabolismo , Tumor de Células de Sertoli/metabolismo , Esteroides/biossíntese , Hormônios Testiculares/biossíntese , Neoplasias Testiculares/metabolismo , Adulto , Androgênios/biossíntese , Androstenodiona/biossíntese , Calcinose/metabolismo , Tamanho Celular , Células Cultivadas , Criança , Estradiol/biossíntese , Estudos de Avaliação como Assunto , Feminino , Humanos , Lactente , Masculino , Puberdade/fisiologia , Células Tumorais CultivadasRESUMO
As part of a 3-year longitudinal study of lipid and hormonal changes during puberty, 536 boys aged 10 to 15 years were prospectively followed every 6 months to assess development of gynecomastia. The overall prevalence of gynecomastia in the 377 with complete data was 48.5% (51% of white subjects and 46% of black subjects). In the majority of subjects, gynecomastia developed during mid-puberty. Gynecomastia was bilateral in 55% of subjects, on the left side in 19%, and on the right in 26%. Gynecomastia was documented for only one visit in the majority of subjects. When subjects were matched at the onset of gynecomastia for race, visit number, and pubertal rating, there were no significant differences between those with or without gynecomastia in serum estradiol level, testosterone level, estrogen/testosterone, ratio, or dehydroepiandrosterone-sulfate level. However, free testosterone level, weight, and Quetelet index were all significantly lower, and the testosterone-estrogen binding globulin level was significantly greater, in those with gynecomastia. We conclude that approximately half of adolescent boys have transient gynecomastia, usually lasting less than 1 year; those with gynecomastia enter mid-puberty at an earlier age, have a lower Quetelet index, and have lower serum free testosterone levels.