PITYRIASIS VERSICOLOR Figure 24-49 PITYRIASIS VERSICOLOR At high power, the Malassezia yeasts and hyphae are clearly visible in the stratum corneum. More about this image found in PITYRIASIS VERSICOLOR At high power, the Malassezia yeast...

BLASTOMYCOSIS Figure 21-3 BLASTOMYCOSIS Suppurative granulomas with isolated pale fungal yeasts in the cytoplasm of a giant cell (A), which are often identified due to their weakly birefringent cell wall and central nuclei on a hematoxylin and eosin (H&E) stain (B,C). More about this image found in BLASTOMYCOSIS Suppurative granulomas with isolated pale fungal yeasts in t...

BLASTOMYCES SPP YEASTS Figure 21-4 BLASTOMYCES SPP YEASTS Typically, there is focal broad-based budding, highlighted by Grocott silver (A) and periodic acid-Schiff (PAS) (B) stains. More about this image found in BLASTOMYCES SPP YEASTS Typically, there is focal broad-ba...

CANDIDA-LIKE YEASTS Figure 22-6 CANDIDA-LIKE YEASTS Kidney biopsy showing Candida-like yeasts, which grew Candida glabrata on culture. H&E at low power (A) and high power (B); fungal yeasts highlighted on Grocott methenamine silver (GMS) stain (C). More about this image found in CANDIDA-LIKE YEASTS Kidney biopsy showing Candida...

LOBOMYCOSIS Figure 24-21 LOBOMYCOSIS A: Skin biopsy at medium power shows round, hyaline yeasts with a thick cell wall. B: At high power, numerous uniform organisms with a refractile wall are appreciated. More about this image found in LOBOMYCOSIS A: Skin biopsy at medium power shows round, hyaline yeasts wit...

PITYRIASIS VERSICOLOR Figure 24-50 PITYRIASIS VERSICOLOR PAS highlights the admixture of small fungal yeasts and hyphae in the stratum corneum. More about this image found in PITYRIASIS VERSICOLOR PAS highlights the admixture of small fungal yeasts ...

SPECTRUM OF CRYPTOCOCCAL MORPHOLOGY Figure 20-5 SPECTRUM OF CRYPTOCOCCAL MORPHOLOGY The characteristic thin-walled, round to ovoid yeasts are of variable size. In gelatinous disease, the encapsulated yeasts are surrounded by abundant clear mucoid material (left and top center). The organisms typi... More about this image found in SPECTRUM OF CRYPTOCOCCAL MORPHOLOGY The characteristic thin-walled, round ...

DISSEMINATED EMERGOMYCES AFRICANUS INFECTION Figure 19-8 DISSEMINATED EMERGOMYCES AFRICANUS INFECTION A: The antral mucosa in the stomach of an AIDS patient shows a pronounced histiocytic infiltrate with focal poor granuloma formation. B: Large numbers of intracellular fungal yeasts reveal focal narrow-neck to tubular budding (arrow), visible on an H&E stain. C: PAS-D highlights the focally budding, small ovoid to round yeasts (arrow). More about this image found in DISSEMINATED EMERGOMYCES AFRICANUS INFECTION A: The antra...

HISTOPLASMA CAPSULATUM VAR. DUBOISII INFECTION Figure 23-8 HISTOPLASMA CAPSULATUM VAR. DUBOISII INFECTION Gross photograph of enlarged spleen shows necrotizing nodules (A). Liver histology illustrates large fungal yeasts, which are much easier to identify on H&E staining than classic Histoplasma (B). GMS stain shows narrow-neck budding in the larger and more thick-walled yeasts (C). (Courtesy of the CDC PHIL) More about this image found in HISTOPLASMA CAPSULATUM VAR. DUBOISII INFE...

MALASSEZIA FOLLICULITIS Figure 24-55 MALASSEZIA FOLLICULITIS PAS highlights the scattered small yeasts (arrows) among the neutrophils. More about this image found in MALASSEZIA FOLLICULITIS PAS highlights the scattered smal...

MALASSEZIA FOLLICULITIS Figure 24-54 MALASSEZIA FOLLICULITIS At high power, numerous small fungal yeasts with numerous associated neutrophils and background debris are seen. More about this image found in MALASSEZIA FOLLICULITIS At high power, numerous small fun...

LYMPHOCUTANEOUS SPOROTRICHOSIS Figure 24-7 LYMPHOCUTANEOUS SPOROTRICHOSIS Grocott silver (GMS) stain shows a small Sporothrix yeast with narrow-based budding. The organisms are usually sparse. More about this image found in LYMPHOCUTANEOUS SPOROTRICHOSIS Grocott silver (GMS) stain shows a small ...

CRYPTOCOCCAL INFLAMMATORY PSEUDOTUMOR Figure 20-7 CRYPTOCOCCAL INFLAMMATORY PSEUDOTUMOR There is a vaguely storiform proliferation of plump myofibroblasts and histiocytes (A) with intervening yeasts highlighted with an Alcian blue stain (B). More about this image found in CRYPTOCOCCAL INFLAMMATORY PSEUDOTUMOR There is a vaguely storiform prolife...

PITYRIASIS VERSICOLOR Figure 24-51 PITYRIASIS VERSICOLOR GMS stain shows intimately admixed fungal hyphae and yeasts (“spaghetti and meatballs”) within a mildly hyperkeratotic stratum corneum. More about this image found in PITYRIASIS VERSICOLOR GMS stain shows intimately admixed fungal hyphae and...

PULMONARY HISTOPLASMOSIS Figure 23-4 PULMONARY HISTOPLASMOSIS Zonal granuloma formation (A) with multiple histiocytes containing a large number of intracytoplasmic Histoplasma spp yeasts (B) are highlighted by a Grocott methenamine stain (GMS) (C). More about this image found in PULMONARY HISTOPLASMOSIS Zonal granuloma formation (A) with multiple histi...

ESOPHAGEAL CANDIDIASIS Figure 22-5 ESOPHAGEAL CANDIDIASIS Alcian blue/PAS-d stain of a pseudomembrane demonstrates an abundance of fungal yeasts and filamentous forms in a background of necrotic debris, bacterial organisms, and isolated degenerated squames. More about this image found in ESOPHAGEAL CANDIDIASIS Alcian blue/PAS-d stain of a pseudomembrane demonst...