Sirolimus therapy in the treatment of pseudomyogenic hemangioendothelioma

Pediatr Blood Cancer. 2018 Feb;65(2). doi: 10.1002/pbc.26781. Epub 2017 Aug 26.

Abstract

Pseudomyogenic hemangioendothelioma (PMH) is a rare, mostly indolent vascular tumor. Extensive cases are treated with amputation as chemotherapy seems to be ineffective. Recently, promising results were published using mammalian target of rapamycin (mTOR) inhibitors in tumors of vascular origin. Here, we present a case of a child with advanced PMH relapsing after surgery and chemotherapy. Sirolimus achieved significant clinical improvement and stabilization of the lesions without any remarkable toxicity. This case contributes to the growing evidence regarding the efficacy of mTOR inhibitors, such as sirolimus, in multifocal PMH.

Keywords: mTOR inhibition; pseudomyogenic hemangioendothelioma; sirolimus.

Publication types

  • Case Reports

MeSH terms

  • Child
  • Hemangioendothelioma / diagnostic imaging
  • Hemangioendothelioma / therapy*
  • Humans
  • Male
  • Sirolimus / administration & dosage*
  • TOR Serine-Threonine Kinases / antagonists & inhibitors
  • Vascular Neoplasms / diagnostic imaging
  • Vascular Neoplasms / therapy*

Substances

  • MTOR protein, human
  • TOR Serine-Threonine Kinases
  • Sirolimus