Úlceras perianales sobre hemangioma con crecimiento mínimo o detenido segmentario / Perianal Ulcers on a Segmental Hemangioma With Minimal or Arrested Growth

Los hemangiomas con crecimiento mínimo o detenido son un tipo de hemangioma infantil en donde no se observa la fase proliferativa característica de los mismos o esta es menor o igual al 25% de la superficie del hemangioma. Esto lleva a que muchas veces sean confundidos con malformaciones vasculares capilares o incluso que pasen inadvertidos. Es importante conocerlos ya que pueden ulcerarse como lo hacen los hemangiomas infantiles típicos y por lo tanto merecen ser tenidos en cuenta para poder tratarlos en forma adecuada. Presentamos una niña de 3 meses de edad con úlceras perianales de evolución tórpida desde los 20 días de vida. Había recibido múltiples esquemas terapéuticos sin respuesta. En el estudio histopatológico de la úlcera se constató la presencia de un hemangioma infantil, GLUT-1 positivo. Realizó tratamiento con propranolol a 2mg/kg/día y cuidados locales con excelente respuesta (AU)

Hemangiomas with minimal or arrested growth are a type of infantile hemangioma in which the proliferative component characteristic of such lesions is not observed or accounts for less than 25% of the surface area of the hemangioma. For this reason, these lesions are frequently confused with capillary vascular malformations or may even go undetected. Awareness of these lesions is, however, important because they can become ulcerated, as occurs with typical infantile hemangiomas. A proper diagnosis is therefore important to enable administration of appropriate treatment. We present the case of a 3-month-old girl with slowly progressing perianal ulcers first detected when she was 20 days old. She had received many different therapies without any response. A pathology study of the ulcer showed a GLUT-1---positive infantile hemangioma. Response to treatment with propranolol 2 mg/kg/d and local wound care was excellent (AU)

Perianal ulcers on a segmental hemangioma with minimal or arrested growth.

Hemangiomas with minimal or arrested growth are a type of infantile hemangioma in which the proliferative component characteristic of such lesions is not observed or accounts for less than 25% of the surface area of the hemangioma. For this reason, these lesions are frequently confused with capillary vascular malformations or may even go undetected. Awareness of these lesions is, however, important because they can become ulcerated, as occurs with typical infantile hemangiomas. A proper diagnosis is therefore important to enable administration of appropriate treatment. We present the case of a 3-month-old girl with slowly progressing perianal ulcers first detected when she was 20 days old. She had received many different therapies without any response. A pathology study of the ulcer showed a GLUT-1-positive infantile hemangioma. Response to treatment with propranolol 2mg/kg/d and local wound care was excellent.

Evaluation of antibodies against a rubella virus neutralizing domain for determination of immune status.

The protective immune responses against rubella virus (RV) are related to its neutralizing epitopes, an issue that is important to consider when assessing the immune status of patients with remote infection. In the present paper, we compare the antibodies detected by a synthetic-peptide-based enzyme immunoassay (EIA) with antibodies detected by the traditional technique of hemagglutination inhibition (HIA) in patients with remote RV infection. The synthetic peptide used as an antigen (SP15) represents a neutralizing epitope that corresponds to amino acids 208 to 239 of the E1 glycoprotein. The SP15-EIA was developed, all variables that affected the assay were standardized, and the test was validated using reference sera. Serum samples (n = 129) from patients with remote RV infection were tested by HIA and SP15-EIA. Discrepant sera were assayed by MEIA (IMX/Abbot). The comparison between HIA and SP15-EIA, taking HIA as the standard methodology for determining immune status, showed that SP15-EIA is very specific and sensitive for detecting protecting antibodies (specificity, 100%; sensitivity, 98.20%). This study demonstrates that antibodies against the neutralizing domain represented by SP15 would be important in the memory response after natural infection and may be a good tool in the determination of the true immune status of patients with remote infection with regard to RV.