EN
Oncotherapy of tumors in dogs and cats is often associated with many side effects. This result is connected with the considerable fall of immunity through the application of radiotherapy as well as chemotherapy. Organ mycoses are typical complications concerning livers, spleen, as well as the lungs evoked by fungus Candida, Aspergillus as well as Cryptococcus. Diagnosis using PCR is a method primarily approved due to its short time test and a high specificity. The avoidance of organ mycosis should be based on the introduction of suitable preventive programs connected with empirical treatment.