title: Prevalence of Cryptosporidium sp. in patients with colorectal cancer.
abstract: Parasitic protozoans of the Cryptosporidium genus are intracellular intestinal parasites of mammals, causing cryptosporidiosis. Clinically, cryptosporidiosis manifests as chronic diarrhoea. Individuals with immune disorders, including those with neoplasms, are at risk of symptomatic invasion.
  
  
  OBJECTIVE
  Was the evaluation of Cryptosporidium sp. prevalence in patients with diagnosed colorectal cancer.
  
  
  METHODS
  The studied group encompassed 87 patients with diagnosed colorectal cancer, undergoing surgery at the Department of General and Oncological Surgery, Pomeranian Medical University, in the years 2009-2010. Immunoenzymatic tests for Cryptosporidium sp. on faeces samples were performed with the use of commercial test kit, ProSpecT(®)Cryptosporidium Microplate Assay (Remel Inc).
  
  
  RESULTS
  The presence of Cryptosporidium sp. was found in 12.6% of studied patients with colorectal cancer. The performed statistical analysis did not reveal any correlation between Cryptosporidium sp. infection and gender, age, neoplasm advancement stage as per Astler-Coller scale, neoplasm differentiation grade, or neoplastic tumour localisation in relation to the splenic flexure.
  
  
  CONCLUSIONS
  There was found high prevalence of Cryptosporidium sp. in patients with colorectal cancer. It was comparable to the prevalence reported for patients with immune deficiency.
authors.affiliation: Department of Clinical Oncology, Pomeranian Medical University.
authors.forename: Violetta
authors.initials: V
authors.lastname: Sulżyc-Bielicka
authors.forename: Lidia
authors.initials: L
authors.lastname: Kołodziejczyk
authors.forename: Sylwia
authors.initials: S
authors.lastname: Jaczewska
authors.forename: Dariusz
authors.initials: D
authors.lastname: Bielicki
authors.forename: Józef
authors.initials: J
authors.lastname: Kładny
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Safranow
mesh_terms: D000230:Adenocarcinoma / Q000453:epidemiology* / Q000473:pathology; D000328:Adult; D000368:Aged; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000473:pathology; D015897:Comorbidity; D003457:Cryptosporidiosis / Q000175:diagnosis / Q000453:epidemiology*; D003458:Cryptosporidium / Q000302:isolation & purification*; D005243:Feces / Q000469:parasitology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009894:Opportunistic Infections / Q000453:epidemiology* / Q000469:parasitology; D011044:Poland; D015995:Prevalence