title: Postauricular congenital alveolar rhabdomyosarcoma- a case report of an unusual entity.
abstract: BACKGROUND
  Congenital alveolar rhabdomyosarcoma is an extremely uncommon and invariably fatal tumor with the current therapy. Less than 25% of patients present with evidence of cutaneous metastasis.
  
  
  METHODS
  We report a case of congenital alveolar rhabdomyosarcoma in an 18-month-old male who presented with a progressively increasing mass lesion in the left post-auricular region since birth. Radiological examination did not show any intracranial involvement of the mass lesion. Upon resecting the mass that was 10-cm in largest dimension, the gross, microscopic, and ultrastructural findings were consistent with congenital alveolar rhabdomyosarcoma.
  
  
  CONCLUSIONS
  The suspicion of alveolar subtype on histological grounds and proper evaluation of this tumor by immunostain and ultrastuctural examination is necessary. In the Medline literature search, there is no report of large congenital alveolar rhabdomyosarcoma in the post-auricle region.
authors.affiliation: Department of Histopathology, Postgraduate Institute of Medical Education & Research, Chandigarh, India. vkmahesh123@yahoo.co.in
authors.forename: Mahesha
authors.initials: M
authors.lastname: Vankalakunti
authors.forename: Ashim
authors.initials: A
authors.lastname: Das
authors.forename: Narasimhan K L
authors.initials: NK
authors.lastname: Rao