Dr Darius Armstrong-James is a consultant physician at Royal Brompton Hospital where he treats private and NHS patients.

Dr Armstrong-James studied medicine at the University of Southampton, graduating in 1996.

He completed specialist training in infectious diseases and general medicine in London, during which he completed his PhD at Imperial College London on fungal virulence. He then took up a MRC Clinician Scientist fellowship at Imperial, and during that time, he established medical mycology services at Imperial College Healthcare.

Dr Armstrong-James has been a clinician at Royal Brompton Hospital since 2014. He provides all clinical advice for infectious diseases at the Trust, and runs the fungal diseases service at the Royal Brompton Hospital. He leads the diagnostic medical mycology service at Royal Brompton Hospital alongside Dr Silke Schelenz.

Clinical expertise

Dr Darius Armstrong-James is a general medicine and infectious diseases physician with a specialist interest in fungal diseases. He is interested in general and respiratory infectious diseases. He has an international reputation in fungal diseases recognised by positions on a number of key European and global groupings as well as regular organisation of international meetings.

He treats many conditions including:

  • Lyme disease
  • aspergillosis
  • fungal nail infection
  • fungal diseases
  • athlete's foot
  • candida
  • thrush
  • tropical diseases.

His patients include returning travellers.


Dr Armstrong-James is a clinical senior lecturer in respiratory fungal diseases at Imperial College London.


Dr Armstrong-James's primary interest is macrophage dysfunction in pulmonary immunity to Aspergillus fumigatus, where he has investigated the link between fungal germination, endosomal sensing, and cell death responses. His lab adopts a multidisciplinary approach spanning molecular immunology, single cell imagings, animal models and clinical studies.


Dr Armstrong-James has published a number of papers in notable journals including the American Journal of Respiratory and Critical Care Medicine and EMBO Molecular Medicine.