title: Concurrent epithelioid malignant peripheral nerve sheath tumor and papillary thyroid carcinoma in the treated field of Hodgkin's disease.
abstract: BACKGROUND
  Simultaneous malignancies in the field of radiation for Hodgkin's disease is an extremely rare event. A unique case of concurrent thyroid and neck mass in the postirradiation field of a young patient with Hodgkin's disease is presented.
  
  
  RESULTS
  Thyroidectomy and excision biopsy of the neck mass were performed. A 1.5-cm papillary thyroid carcinoma was identified in thyroidectomy and an initial diagnosis of undifferentiated malignant neoplasm was rendered on the neck mass biopsy. Subsequent surgical excision of the neck mass and immunohistochemical analysis revealed malignant peripheral nerve sheath tumor.
  
  
  CONCLUSIONS
  Concurrent malignancies in the field of treatment of Hodgkin's disease may occur. Rare malignancies including malignant peripheral nerve sheath tumor may be encountered along with the more common papillary thyroid carcinoma.
authors.affiliation: Department of Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA.
authors.forename: Gokcen
authors.initials: G
authors.lastname: Yildirim
authors.forename: Ann M
authors.initials: AM
authors.lastname: Gillenwater
authors.forename: Nelson G
authors.initials: NG
authors.lastname: Ordonez
authors.forename: Adam S
authors.initials: AS
authors.lastname: Garden
authors.forename: Adel K
authors.initials: AK
authors.lastname: El-Naggar
mesh_terms: D000328:Adult; D002291:Carcinoma, Papillary / Q000473:pathology* / Q000601:surgery; D015622:Epithelioid Cells / Q000473:pathology; D005260:Female; D006689:Hodgkin Disease / Q000532:radiotherapy; D006801:Humans; D009381:Neoplasms, Radiation-Induced / Q000473:pathology / Q000601:surgery; D016609:Neoplasms, Second Primary / Q000473:pathology* / Q000601:surgery; D018317:Nerve Sheath Neoplasms / Q000473:pathology* / Q000601:surgery; D010524:Peripheral Nervous System Neoplasms / Q000473:pathology* / Q000601:surgery; D013964:Thyroid Neoplasms / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy