• A fungal infection caused by inhalation of spores of Blastomyces dermatitidis. It presents with flu-like symptoms including fever, chills, cough, pleuritic chest pain and myalgias. It may lead to a chronic granulomatous pulmonary infection and disseminate to other anatomic sites including skin, nervous system and bones.
  NCI
  U.S. National Cancer Institute, 2021
• A fungal infection that is usually caused by inhalation of spores of Blastomyces dermatitidis; it most commonly presents with fever, chills, cough, pleuritic chest pain, and myalgias. The infection can disseminate to other anatomic sites, including skin, nervous system, and bones.
  NICHD Pediatric Terminology
  U.S. National Cancer Institute, 2021
• A fungal infection by BLASTOMYCES that may appear in two forms: 1, a primary lesion characterized by the formation of a small cutaneous nodule and small nodules along the lymphatics that may heal within several months; and 2, chronic granulomatous lesions characterized by thick crusts, warty growths, and unusual vascularity and infection in the middle or upper lobes of the lung.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• Infection caused by fungi of the genus Blastomyces.
  CRISP Thesaurus
  National Institutes of Health, 2006
• Blastomycosis is a pulmonary disease caused by inhaling spores of the dimorphic fungus Blastomyces dermatitidis. Occasionally, the fungi spread hematogenously, causing extrapulmonary disease. Symptoms result from pneumonia or from dissemination to multiple organs, most commonly the skin. Diagnosis is clinical, by chest x-ray, or both and...
  Merck Manuals
  Merck & Co., Inc., 2025
• Blastomycosis is a fungal infection caused by inhalation of aerosolized conidia (spores) of Blastomyces dermatitidis. Clinical presentations occur across a wide spectrum, ranging from an asymptomatic, self-limited pulmonary infection to widely disseminated life-threatening disease.
  Medscape
  WebMD, 2025
• Blastomycosis is a rare infection that may develop when people inhale a fungus called Blastomyces dermatitidis, a fungus that is found in moist soil, particularly where there is rotting vegetation. The fungus enters the body through the lungs, infecting them. The fungus then spreads to other areas of the body. The infection may affect...
  NIH Genetic and Rare Diseases
  National Center for Advancing Translational Sciences
• Blastomycosis is an invasive infection caused by the dimorphic fungus Blastomyces dermatitidis , which is endemic to the upper and mid-Mississippi River valley in the US, Canada, the Mediterranean basin, and parts of Africa. Although pulmonary involvement is most common, skin, CNS, and osteoarticular involvement are frequently seen. Less...
  Epocrates
  Athenahealth, Inc., 2019
• Blastomycosis, infection of the skin and viscera caused by fungal organisms of the genus Blastomyces. There are two major types of blastomycosis: the North American, caused by B. dermatitidis, and the South American, caused by B. brasiliensis. In North American blastomycosis, skin and lung lesions...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025