RESUMO
We report the cases of two female newborns who present, at the first day, a interlabial mass. In both cases, the antenatal scans were normal, and the clinical examination in the delivery room didn't reveal any other abnormality. Similar features may suggest the same diagnosis. However, in the first case, it is a paraurethral cyst which causes the bulging of vaginal introitus whereas, in the second infant, it is an imperforated hymen. Paraurethral cysts are uncommon and even more so among infants. The diagnosis is primarily clinical, and ultrasound confirms the diagnosis and verifies the absence of other associated anomalies. These cysts usually resolve spontaneously. Rarely, they can lead to urinary retention. The second diagnosis, imperforate hymen, is the most common congenital malformation of the female genital tract. It can lead to hydrocolpos with the upstream accumulation of vaginal secretion and sometimes induce a hydrometrocolpos, with vaginal and uterine dilatation. The resulting mass can cause obstruction of surrounding urinary or digestive structures. Surgical management is generally necessary.
Nous rapportons le cas de deux nouveau-nés de sexe féminin qui présentaient une masse au niveau vulvaire, dans les premiers jours de vie. Dans les deux cas, le reste de l'examen clinique était sans particularité et aucune anomalie n'avait été décelée en anténatal. Les présentations cliniques semblables peuvent faire évoquer le même diagnostic. Pourtant, dans le premier cas, c'est un kyste para-urétral qui cause la masse alors que, dans le second, c'est une imperforation de l'hymen. Ces deux pathologies sont peu fréquentes chez les nourrissons. Leur diagnostic est avant tout clinique et l'échographie permet à la fois de confirmer celui-ci et de vérifier l'absence d'autres anomalies. La plupart du temps, les kystes para-urétraux régressent spontanément. Cependant, ils peuvent parfois être la cause d'une rétention urinaire. En cas d'imperforation de l'hymen, la réalisation d'un acte chirurgical est, par contre, nécessaire afin d'éviter des complications plus tardives. Un hydrocolpos peut y être associé, il est dû à la rétention de sécrétions vaginales en amont. La masse engendrée peut provoquer une obstruction des structures avoisinantes.
Assuntos
Cistos , Hidrocolpos , Doenças Uterinas , Cistos/diagnóstico por imagem , Feminino , Humanos , Hidrocolpos/diagnóstico por imagem , Hímen , Lactente , Recém-Nascido , Gravidez , UltrassonografiaRESUMO
Twist1 and Twist2 (Twist1-2) are two transcription factors, members of the basic helix-loop-helix family, that have been well established as master transcriptional regulators of embryogenesis and developmental programs of mesenchymal cell lineages. Their role in oncogenesis in epithelium-derived cancer and in epithelial-to-mesenchymal transition has also been thoroughly characterized. Recently, emerging evidence also suggests a key role for Twist1-2 in the function and development of hematopoietic cells, as well as in survival and development of numerous hematological malignancies. In this review, we summarize the latest data that depict the role of Twist1-2 in monocytes, T cells and B lymphocyte activation, and in associated hematological malignancies.