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ORIGINAL ARTICLES

Disseminated histoplasmosis with concurrent oral candidiasis in an Eclectus parrot (Eclectus roratus)

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Pages 207-211 | Received 01 Dec 2010, Published online: 15 Apr 2011

Figures & data

Figure 1. Ventral–dorsal radiographic image of an Eclectus parrot (E. roratus) right wing. Note the multifocal, expansile lesions causing varying degrees of corticolysis within the extremities (short arrows).

Figure 1.  Ventral–dorsal radiographic image of an Eclectus parrot (E. roratus) right wing. Note the multifocal, expansile lesions causing varying degrees of corticolysis within the extremities (short arrows).

Figure 2. Ventral–dorsal radiographic image of Eclectus parrot (E. roratus) right distal tibia. Note the expansile lesion causing corticolysis within the distal tibia (short arrow).

Figure 2.  Ventral–dorsal radiographic image of Eclectus parrot (E. roratus) right distal tibia. Note the expansile lesion causing corticolysis within the distal tibia (short arrow).

Figure 3. Macroscopic image of oral and ocular granuloma, Eclectus parrot (E. roratus).

Figure 3.  Macroscopic image of oral and ocular granuloma, Eclectus parrot (E. roratus).

Figure 4. Cytologic preparation of the right lower eyelid, Eclectus parrot (E. roratus). Foamy macrophage with several, 2 to 5 µm, oval thin-walled yeasts exhibiting narrow-based budding (H. capsulatum) surrounded by a few avian erythrocytes. Diff Quick. 1000x magnification.

Figure 4.  Cytologic preparation of the right lower eyelid, Eclectus parrot (E. roratus). Foamy macrophage with several, 2 to 5 µm, oval thin-walled yeasts exhibiting narrow-based budding (H. capsulatum) surrounded by a few avian erythrocytes. Diff Quick. 1000x magnification.

Figure 5. Tongue, Eclectus parrot (E. roratus). Large numbers of macrophages and multi-nucleated giant cells both foreign body and Langhans types containing numerous, intrahistiocytic, 2 to 4 µm yeasts with a central, 1 µm basophilic nucleus and surrounding clear zone (H. capsulatum). HE. Bar=25 µm. Inset: Multi-nucleated giant cell, Langhans type, containing numerous intrahistiocytic yeasts. HE. 1000x magnification.

Figure 5.  Tongue, Eclectus parrot (E. roratus). Large numbers of macrophages and multi-nucleated giant cells both foreign body and Langhans types containing numerous, intrahistiocytic, 2 to 4 µm yeasts with a central, 1 µm basophilic nucleus and surrounding clear zone (H. capsulatum). HE. Bar=25 µm. Inset: Multi-nucleated giant cell, Langhans type, containing numerous intrahistiocytic yeasts. HE. 1000x magnification.

Figure 6. Tongue, Eclectus parrot (E. roratus). Large numbers of macrophages and multinucleated giant cells with positive-staining intrahistiocytic yeasts (H. capsulatum). Grocott's Methenamine Silver. Bar=25 µm.

Figure 6.  Tongue, Eclectus parrot (E. roratus). Large numbers of macrophages and multinucleated giant cells with positive-staining intrahistiocytic yeasts (H. capsulatum). Grocott's Methenamine Silver. Bar=25 µm.

Figure 7. Immunohistochemistry of tongue, Eclectus parrot (E. roratus). Intrahistiocytic yeasts are strongly positive for H. capsulatum markers. 600x magnification.

Figure 7.  Immunohistochemistry of tongue, Eclectus parrot (E. roratus). Intrahistiocytic yeasts are strongly positive for H. capsulatum markers. 600x magnification.

Figure 8. Tongue, Eclectus parrot (E. roratus). Fibrinous and heterophilic inflammation with moderate numbers of 2 to 4 µm, basophilic to amphophilic, extracellular yeasts (short arrows) and occasional, slender, 4 to 6 µm wide, basophilic to amphophilic, parallel-walled, irregularly septated fungal hyphae (long arrows) (C. albicans). HE. Bar=10 µm.

Figure 8.  Tongue, Eclectus parrot (E. roratus). Fibrinous and heterophilic inflammation with moderate numbers of 2 to 4 µm, basophilic to amphophilic, extracellular yeasts (short arrows) and occasional, slender, 4 to 6 µm wide, basophilic to amphophilic, parallel-walled, irregularly septated fungal hyphae (long arrows) (C. albicans). HE. Bar=10 µm.

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