Introduction: Fusarium species cause severe infections in patients with hematologic malignancies. The types of infection caused by Fusarium spp. in humans range from infections of nail, skin, and eye in immunocompetent host to invasive and disseminated infections in mainly immunocompromised patients.Methods: We retrospectively indentified patients with hematologic malignancy and positive cultures for Fusarium species at the University Hospital (1995-2014).Results: Thirteen cases were identified over study period. Patient demographic and underlying risk factors for fusariosis are presented in Table I. Most patients had uncontrolled hematological malignancy. All patients were neutropenic at diagnosis. Pulmonary involvement was evident in 3/13 patients (23%). Skin lesions were present in 2/13 (15%) patients. Fusariosis presented as a breakthrough infection in 8/13 (62%) of patients (Table II). Positive blood cultures were in the 6/13 (46%).Conclusions: Our study has several limitations due to its retrospective nature and its relatively small size. Fusariosis, althought uncommon, continues to have poor prognosis in neutropenic leukemic patients who present with fungemia. The optimal therapy for fusariosis remains undefined, because of its rarity and the complex clinical scenarious in patients with severe immunosupression.Table 1Characteristics of 13 patients with fusariosisNoSex/ageUnderlying diseaseDuration of neutropenia before/after (days)Fusarium spp.DiagnosisBreakthrough infectionsConcomitant infectionsTreatment of fusarium infectionOutcome of Fusarium infection1F/41AML/Ri15 /6F. verticillioidesBloodNoneNoneAmp- BEradicated, in 23 days2M/19Aplastic anemia67/54F. proliferatumBronchilavageNoneC. kefyr, C. glabrata, P. aeruginosaAmp- B, voriconazoleEradicated, in 51 days3M/38AML/RÝ31/1F. proliferatumBronchi lavageFluconazoleC. albicansAmp- B, voriconazoleEradicated, in 199 days4M/50ALL/RÝ25/0F. proliferatumBloodFluconazoleK. pneumoniaeAmp- BDied5M/43AML/consolidation37/9F. solani SC haplotype 6Skin biopsyFluconazoleC. bovis, S. arolisVoriconazoleDied6M/45Relapse AML/ RÝ37/5F. petroliphilumBlood + tissuebiopsyItraconazole, voriconazoleVRE, S. capitis, S. maltophiliaAmp- B, voriconazoleDied7M/65AML/ RÝ41/0F. andiyaziBloodPosaconazolA. baumaniiAmp - BDied8M/63MDS tr. AML/ RÝNoneF. petroliphilumNasalbiopsyFluconazoleHSV, C. albicans, alternans spp.Amp- B, voriconazoleDied9M/49Refractary MDS tr. AML/ RÝ67/94F. solaniss.NasalbiopsyNoneS. hominis, S. saprophyticusVoriconazoleEradicatedin 68 days10F/53Relapse MDS tr. AML/ RÝ25/27F. proliferatumNasalbiopsyPosaconazoleVRE, Klebsiella, EnterobactericeaAmp- B, voriconazoleEradicated, in 84 days11F/49ALL/ RÝ23/13F. petroliphilumNasalbiopsyNoneEnterococcus, S. epidermidis, E. faecalis, MRS, BLPSAmp- B, voriconazoleDied12M/50HCL65/4F. petroliphilumBloodNoneNoneAmp- BDied13M/52Relapse AML/ consolidation34/3F. petroliphilumBlood , skin biopsyPosaconazoleC. parapsilosis, C. meningosepticum, S. capitisEchinocandine, voriconazoleEradicated , in 90 daysTable 2Patient characteristicsDemographic and disease characteristicsNumber of patients, n=13 (%)Median age49(19-63)Male49,5(19-63)Female49(41-53)Female patient3 (23)Male patient10(77)AML/ MDS tr. AML9 (69)Relapse3Remission induction7Consolidation2Reinduction1ALL (remission induction)2 (15)Hairy cell leukemia1 (8)Aplastic anemia1 (8)Median duration of neutropenia before diagnosis (day)34 (15-67)Median duration of neutropenia after diagnosis (day)6 (0-94)History of DM0Albümin <3.5 mg/dLAllHýgh dose corticosteroid treatment within 30 days of diagnosis1Breakthrough infections8 (62)While receiving posaconazole3 (23)While receiving voriconazole1 (8)While receiving fluconazole4 (31)Concominant infectionBacterial, viral, fungal=11 (85)Exitus7 (54) DisclosuresNo relevant conflicts of interest to declare.