ABSTRACT
Saprochaete capitata (S. capitata) fungal sepsis is a severe condition with a clinical presentation that is similar to other yeast originated fungal sepsis. It is observed in patients with hematological malignancies such as acute myeloid leukemia and neutropenia. We report a 23 year old male presenting with cough, fever and malaise. A bone marrow biopsy led to the diagnosis of acute myeloid leukemia. During the first cycle of chemotherapy the patient presented fever: blood cultures were positive for Klebsiella pneumoniae. Despite antimicrobial treatment, fever persisted; a computed tomography showed a focal splenic lesion; a left exudative pleural effusion appeared. A Matrix Assisted Laser Desorption Ionization-Time of Flight mass spectrometry identified the presence of S. capitata. After multiple antifungal treatments and pleural cavity cleansing by means of videothoracoscopy and laparoscopic splenectomy, the infection resolved and the patient completed his chemotherapy.
Subject(s)
Dipodascus/isolation & purification , Fungemia/surgery , Leukemia, Myeloid, Acute/microbiology , Antifungal Agents/therapeutic use , Drainage/methods , Fungemia/drug therapy , Fungemia/pathology , Humans , Male , Pleurisy/microbiology , Pleurisy/pathology , Splenectomy/methods , Splenic Diseases/microbiology , Splenic Diseases/pathology , Splenic Diseases/surgery , Treatment Outcome , Young AdultABSTRACT
Saprochaete capitata (S. capitata) fungal sepsis is a severe condition with a clinical presentation that is similar to other yeast originated fungal sepsis. It is observed in patients with hematological malignancies such as acute myeloid leukemia and neutropenia. We report a 23 year old male presenting with cough, fever and malaise. A bone marrow biopsy led to the diagnosis of acute myeloid leukemia. During the first cycle of chemotherapy the patient presented fever: blood cultures were positive for Klebsiella pneumoniae. Despite antimicrobial treatment, fever persisted; a computed tomography showed a focal splenic lesion; a left exudative pleural effusion appeared. A Matrix Assisted Laser Desorption Ionization-Time of Flight mass spectrometry identified the presence of S. capitata. After multiple antifungal treatments and pleural cavity cleansing by means of videothoracoscopy and laparoscopic splenectomy, the infection resolved and the patient completed his chemotherapy.
Subject(s)
Humans , Male , Young Adult , Leukemia, Myeloid, Acute/microbiology , Fungemia/surgery , Dipodascus/isolation & purification , Pleurisy/microbiology , Pleurisy/pathology , Splenectomy/methods , Splenic Diseases/surgery , Splenic Diseases/microbiology , Splenic Diseases/pathology , Drainage/methods , Treatment Outcome , Fungemia/pathology , Fungemia/drug therapy , Antifungal Agents/therapeutic useABSTRACT
The infections caused by Dipodascus capitatus are rare, and the treatment is difficult. We reported a case of a patient with acute myeloid leukemia. The fungus was first isolated from hemocultures, and the phenotypic identification was based on mycological methods. The genotyping was carried out by sequencing the region D1/D2 from 26 rDNA. The susceptibility tests were assayed by Etest® and by the microdilution technique. None of the antifungal treatments employed were effective. The patient died on day 17 after the mycological diagnosis. The authors discussed the emergence of such infections as well as the difficulty regarding the diagnosis and treatment.
Subject(s)
Dipodascus/isolation & purification , Leukemia, Myeloid, Acute/microbiology , Mycoses/microbiology , Adolescent , DNA, Fungal/analysis , DNA, Ribosomal/analysis , Dipodascus/genetics , Fatal Outcome , Female , Genotype , Humans , Microbial Sensitivity TestsABSTRACT
As infecções causadas por Dipodascus capitatus são raras e de difícil tratamento. Aqui se relata um caso em paciente com leucemia mielocítica aguda. O isolamento fúngico ocorreu a partir de hemocultura e a identificação fenotípica baseou-se em métodos micológicos clássicos; a identificação genotípica foi realizada através do sequenciamento da região D1/D2 do 26 rDNA. Os testes de suscetibilidade foram realizados através do Etest® e microdiluição em caldo. A antifungicoterapia foi ineficaz, registrando-se óbito da paciente no 17° dia após o diagnóstico. Os autores comparam o caso com relatos similares e discutem a emergência destas infecções bem como suas dificuldades diagnósticas e terapêuticas.
The infections caused by Dipodascus capitatus are rare, and the treatment is difficult. We reported a case of a patient with acute myeloid leukemia. The fungus was first isolated from hemocultures, and the phenotypic identification was based on mycological methods. The genotyping was carried out by sequencing the region D1/D2 from 26 rDNA. The susceptibility tests were assayed by Etest® and by the microdilution technique. None of the antifungal treatments employed were effective. The patient died on day 17 after the mycological diagnosis. The authors discussed the emergence of such infections as well as the difficulty regarding the diagnosis and treatment.