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The study included 108 patients with B-cell lymphoma which had complication with invasive aspergillosis, 57 patients with Hodgkin lymphoma (HL) and 51 patients with non-Hodgkin lymphoma (NHL). All patients in both groups received chemotherapy before the development of invasive aspergillosis, 73% of patients with HL and 67% patients with NHL received chemotherapy for induction and consolidation of remission. The main predictive factors for IA in patients with HL and NHL were: prolonged lymphocytopenia (70% vs 48%), agranulocytosis (64% vs 71%), use of glucocorticosteroids as part of treatment protocol (61% vs 85%), presence of B – symptoms (63% vs 48%), respectively. In most cases nosocomial invasive aspergillosis was diagnosed in both groups: 65% vs 83% respectively. We identified etiological agents in Hodgkin and non-Hodgkin lymphoma patients: A. fumigatus (50% vs 39%), A. niger (43% vs 33%) and A. flavus (7% vs 8%). The lungs were involved in 100% cases, in group with NHL patients 6% had combined lesions in lungs and other organs and different types of tissues. Clinical manifestation of IA was nonspecific in both groups: fever – 83% vs 76%, cough – 75% vs 59%, respiratory insufficiency – 50% vs 40%, respectively. CT-signs of IA were also nonspecific in both groups: infiltrative (75% vs 66%), focal changes (61% vs 63%), and «ground-glass opacity» (28% vs 31%), respectively. In most cases patients were treated with voriconazole in both patients (88% vs 98%). Overall 12-weeks survival in patients with Hodgkin lymphoma and invasive aspergillosis was 84%, in patients with non-Hodgkin lymphoma and invasive aspergillosis – 81%.