Pediatric-type Sarcomas in Adult Patients

M. C. Montesco, R. Alaggio, Vito Ninfo

Research output: Contribution to journalArticlepeer-review


Sarcomas included in the broad group of small round-cell tumors (SRCT) and some non-SRCT lesions that typically are seen in pediatric-age patients can rarely occur in adults. However, there are differences in the anatomic sites that are involved and the prognosis in these two patient groups. The diagnosis of pediatric-type sarcomas in adults is often challenging because of the unusual contextual clinical setting and morphologic features. Immunohistochemical studies have greatly facilitated this process. Moreover, limited biomolecular studies that have been conducted have demonstrated comparable cytogenetic alterations in adults and children with pediatric-type tumors. They also have raised interesting questions concerning possible biological bases for differences in clinical behavior in the two cohorts. This review focuses on the morphological, immunohistochemical, and molecular characteristics of childhood-type sarcomas that affect adults, with emphasis on possible pitfalls in differential diagnosis.

Original languageEnglish
Pages (from-to)324-337
Number of pages14
JournalSeminars in Diagnostic Pathology
Issue number4
Publication statusPublished - Nov 2003


  • Chromosomal translocations in neoplasms
  • Diagnostic immunohistochemistry
  • Neoplasms in adults
  • Small round-cell tumors
  • Soft tissue tumors

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Medical Laboratory Technology


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