title: Pleomorphic hyalinizing angiectatic tumor arising in the groin: A case report.
abstract: BACKGROUND
  Pleomorphic hyalinizing angiectatic tumors are a rare group of tumors that are currently classified as benign tumors of unknown differentiation. To our knowledge, less than 100 cases have been reported in literature. We report a case that presented in the groin - an uncommon location for this rare tumor.
  
  
  METHODS
  A 75 year-old female presented with a seven-year history of painless right groin mass with rapid growth of 2 year duration. On physical examination, a firm and mobile mass was identified in the right groin. It measured 12cm×8cm, with no clinically palpable lymph nodes. Microscopic and immunohistochemical features were consistent with pleomorphic hyalinizing angiectatic tumor.
  
  
  CONCLUSIONS
  Pleomorphic hyalinizing angiectatic tumor is a rare soft tissue tumor usually diagnosed using microscopic and immuohistochemical analysis to allow for differentiation from other soft tissue tumors. It is treated by wide local excision.
authors.affiliation: Department of Surgery, Michigan State University, East Lansing, MI, USA. Electronic address: Chibueze.Onyemkpa@hc.msu.edu.
authors.forename: Chibueze
authors.initials: C
authors.lastname: Onyemkpa
authors.affiliation: Department of Surgical Oncology, Barbara Ann Karmanos Cancer Institute at McLaren Flint, Wayne State University School of Medicine, MI, USA.
authors.forename: Tolutope
authors.initials: T
authors.lastname: Oyasiji
keywords: PHAT; Pleomorphic hyalinizing angiectatic tumors; Soft tissue tumors