Which organism yields green mold on SDA and is associated with pulmonary infections in an immunocompromised patient?

Prepare for the CAMLPR Microbiology Test. Utilize flashcards and engaging multiple-choice questions, each equipped with descriptions and explanations. Ready yourself for an excellent performance!

Green mold on Sabouraud dextrose agar points to an Aspergillus species. In immunocompromised patients, Aspergillus fumigatus is the classic cause of invasive pulmonary infections, so this colony appearance plus the clinical setting strongly fits that organism. On culture, Aspergillus forms slender, septate hyphae that branch at acute angles, and the colonies often take on a greenish color, aligning with the described mold growth.

Candida albicans is a yeast that grows as budding cells and pseudohyphae rather than a green mold on SDA. Histoplasma capsulatum and Blastomyces dermatitidis are dimorphic fungi with mold forms in the environment but do not characteristically present as green mold on SDA; their pulmonary infections have different morphological features in culture and tissue.