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Volume 31, Number 11—November 2025

Dispatch

Bjerkandera spp. Pulmonary Infection in Immunocompromised Hosts, Germany

Rosanne SpruteComments to Author , Danila Seidel, Katrin Mehler, Zoé Westhues, Sarina K. Butzer, Jannik Stemler, Oliver A. Cornely, and Philipp Koehler
Author affiliation: German Centre for Infection Research, Cologne, Germany (R. Sprute, D. Seidel, Z. Westhues, J. Stemler, O.A. Cornely); University of Cologne Faculty of Medicine and University Hospital Cologne Institute of Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, Cologne (R. Sprute, D. Seidel, Z. Westhues, J. Stemler, O.A. Cornely, P. Koehler); University of Cologne Faculty of Medicine and University Hospital Cologne Department of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf and ECMM Excellence Center for Medical Mycology, Cologne (R. Sprute, D. Seidel, Z. Westhues, J. Stemler, O.A. Cornely, P. Koehler); University of Cologne Faculty of Medicine and University Hospital Cologne Department of Pediatrics, Division of Pediatric Infectious Diseases, Cologne (K. Mehler, S.K. Butzer); University of Cologne Faculty of Medicine and University Hospital Cologne, Department of Pediatrics, Division of Pediatric Oncology and Hematology, Cologne (S.K. Butzer); University of Cologne Faculty of Medicine and University Hospital Cologne, Clinical Trials Centre Cologne (ZKS Köln), Cologne (O.A. Cornely); University of Cologne Faculty of Medicine and University Hospital Cologne, Department of Internal Medicine, Division of Clinical Immunology, Cologne (P. Koehler)

Main Article

Figure 3

Images of Bjerkandera spp. formations from study of Bjerkandera spp. pulmonary infection in immunocompromised hosts, Germany. Slides are of lactophenol preparation (original magnification ×1,000). Bjerkandera spp. form white, yellowish-white, or tan colonies with a cottony to woolly texture on malt extract agar. The hyphae can be branched. Thin-walled, rectangular arthroconidia are formed via schizolytic dehiscence. In addition, ellipsoidal chlamydospores <10 µm long may develop. Arrowheads indicate chlamydospores (A–C), arrows indicate arthroconidia (D).

Figure 3. Images of Bjerkandera spp. formations from study of Bjerkandera spp. pulmonary infection in immunocompromised hosts, Germany. Slides are of lactophenol preparation (original magnification ×1,000). Bjerkandera spp. form white, yellowish-white, or tan colonies with a cottony to woolly texture on malt extract agar. The hyphae can be branched. Thin-walled, rectangular arthroconidia are formed via schizolytic dehiscence. In addition, ellipsoidal chlamydospores <10 µm long may develop. Arrowheads indicate chlamydospores (A–C), arrows indicate arthroconidia (D).

Main Article

Page created: September 26, 2025
Page updated: December 10, 2025
Page reviewed: December 10, 2025
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