title: Unusual presentation of angiocentric T-cell lymphoma mimicking perianal abscess.
abstract: BACKGROUND
  Subcutaneous angiocentric T cell is a common form of cutaneous lymphoma localized within subcutis mimicking lobular panniculitis. It is rarely manifested as perianal skin lesion.
  
  
  OBJECTIVE
  To suggest that perianal T-cell lymphoma is a rare entity that should be included in the differential diagnosis of perianal infiltrate mimicking perianal abscess.
  
  
  RESULTS
  A 65-year-old woman presented with painful perianal infiltrate mimicking a perianal abscess. The pain lasted seven days and there was no evidence of fever. Bacterial examination of tissue of the infiltrate discovered Staphylococcus aureus. Angiocentric T-cell lymphoma was demonstrated on biopsy.
  
  
  CONCLUSIONS
  Our case represented sequela of subcutaneous angiocentric T-cell malignant lymphoma with a complication of a secondary infection mimicking perianal abscess. In patients presenting with a perianal infiltrate without abscess, a malignant condition should be considered a differential diagnosis and a biopsy should be performed.
authors.affiliation: Department of Surgery, Sieff Government Hospital, Safed, Israel. drigor88@hotmail.com
authors.forename: Igor
authors.initials: I
authors.lastname: Dashkovsky
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Cozacov
mesh_terms: D000038:Abscess / Q000175:diagnosis*; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D001004:Anus Diseases / Q000175:diagnosis*; D001706:Biopsy; D003520:Cyclophosphamide / Q000627:therapeutic use; D003937:Diagnosis, Differential; D004317:Doxorubicin / Q000627:therapeutic use; D005260:Female; D006801:Humans; D016410:Lymphoma, T-Cell, Cutaneous / Q000175:diagnosis* / Q000188:drug therapy; D011241:Prednisone / Q000627:therapeutic use; D014750:Vincristine / Q000627:therapeutic use
chemical_list: D014750:Vincristine; D004317:Doxorubicin; D003520:Cyclophosphamide; D011241:Prednisone