/* Sequence of slide descriptions */
desc11 = 'Case 1 - Figure 1
Frozen section appearance of the tumor showing a small cell neoplasm. (Hematoxylin and eosin, original magnification 200x) ';
desc12 = 'Case 1 - Figure 2
Sheet of small blue cells. No obvious rosette structures are identified. (Hematoxylin and eosin, original magnification 400x) ';
desc13 = 'Case 1 - Figure 3
A slightly more discohesive area of the tumor. Some of the cells have eccentric nuclei with eosinophilic cytoplasm. (Hematoxylin and eosin, original magnification 400x) ';
desc14 = 'Case 1 - Figure 4
CD134 immunostain demonstrating diffuse positivity consistent with a plasma cell dyscrasia. (original magnification 400x) ';
desc15 = 'Case 1 - Figure 5
Lambda immunostain showing positive immunostaining in most of the tumor cells. (original magnification 400x) ';
desc21 = 'Case 2 - Figure 1
The original 1990 tumor was composed of pleomorphic cells with enlarged, bizarre, multilobed, hyperchromatic nuclei, but also contained striking numbers of eosinophilic granular bodies ';
desc22 = 'Case 2 - Figure 2
The original 1990 tumor also showed denser, more eosinophilic Rosenthal fibers and collections of non-neoplastic lymphocytes ';
desc23 = 'Case 2 - Figure 3
A high power photomicrograph of the original 1990 tumor shows the discrete granular or "droplet" appearance of the eosinophilic granular bodies ';
desc24 = 'Case 2 - Figure 4
This tumor additionally showed extensive necrosis (lower portion of photograph), as well as mitotic activity ';
desc25 = 'Case 2 - Figure 5
When this patient experienced recurrent symptoms 11 years later in 2001, and was found to have a tumor in the same anatomic location, it showed entirely different histological features than the 1990 tumor. Note the fibrosarcomatous appearance of this high grade neoplasm ';
desc26 = 'Case 2 - Figure 6
Although the overwhelming majority of the tumor showed a high grade fibrosarcomatous pattern, a small area in the tumor from the first resection in 2001 showed neoplastic bone formation ';
desc27 = 'Case 2 - Figure 7
The slide supplied for this USCAP conference was taken from material resected on the second operation in 2001 and clearly illustrates the highly malignant nature of this radiation-induced sarcoma; note the exceedingly high mitotic rate ';
desc28 = 'Case 2 - Figure 8
A reticulin stain highlighted the sarcomatous nature of the radiation-induced tumor; GFAP immunoreactivity was not present ';
desc29 = 'Case 2 - Figure 9A
The second most frequent pattern in the radiation-induced sarcoma was seen in the slide submitted for this USCAP conference; note clusters of cells with abundant, strap-like eosinophilic cytoplasm (insert). These cells showed strong immunoreactivity for desmin, but not GFAP';
desc2a = 'Case 2 - Figure 9B
The second most frequent pattern in the radiation-induced sarcoma was seen in the slide submitted for this USCAP conference; note clusters of cells with abundant, strap-like eosinophilic cytoplasm (insert). These cells showed strong immunoreactivity for desmin, but not GFAP';
desc31 = 'Case 3 - Figure 1
Xanthogranulomata of the choroid plexus glomera choroidea. Bilateral choroid plexus glomera choroidea from the atria (trigone) region of the lateral ventricles. Both glomera show a tan-yellow mass. (gross photograph) ';
desc32 = 'Case 3 - Figure 2
Xanthogranulomas are histologically heterogeneous lesions ';
desc33 = 'Case 3 - Figure 3
Cholesterol crystal clefts are a prominent feature of xanthogranuloma ';
desc34 = 'Case 3 - Figure 4
Xanthogranuloma. Cholesterol clefts ';
desc35 = 'Case 3 - Figure 5
Xanthogranuloma. Multinucleated giant cells of foreign body-type attack cholesterol crystals ';
desc36 = 'Case 3 - Figure 6
Xanthogranuloma. Multinucleated giant cells of foreign body-type ';
desc37 = 'Case 3 - Figure 7
Recent and remote hemorrhage in xanthogranuloma. Prominent deposition of hematoiden (yellow pigment) and hemosiderin (brown pigment) is present ';
desc38 = 'Case 3 - Figure 8
Macrophage infiltration is a characteristic feature of xanthogranuloma ';
desc39 = 'Case 3 - Figure 9
Nests of meningothelial (arachnoidal) cells are often present in xanthogranuloma, reflecting the anatomic origin within the choroid plexus in which meningothelial cells are normal cellular constituents ';
desc3a = 'Case 3 - Figure 10
Psammoma bodies, which form within meningothelial cell whorls, also comprise part of the normal histology of the choroid plexus and thus are not uncommonly seen in xanthogranuloma ';
desc3b = 'Case 3 - Figure 11
Fibrosis is part of the organizational changes that follow inta-choroidal hemorrhage in xanthogranuloma ';
desc3c = 'Case 3 - Figure 12
Dystrophic calcification follows fibrosis and is commonly seen in xanthogranuloma ';
desc41 = 'Case 4 - Figure 1
T1-weighted MRI showing heterogeneously contrast enhancing fourth ventricular tumor ';
desc42 = 'Case 4 - Figure 2
Rosette-forming glioneuronal tumor. Neurocyte-like area with perivascular pseudorosettes and myxoid stroma. Original magnification: 500X ';
desc43 = 'Case 4 - Figure 3
Rosette-forming glioneuronal tumor. Low grade astrocytic component with eosinophilic granular bodies ';
desc44 = 'Case 4 - Figure 4
Rosette-forming glioneuronal tumor immunostained for synaptophysin showing positive staining of the "core" of a rosette. Original magnification: 1000X ';
desc51 = 'Case 5 - Figure 1
LLP. Low power view demonstrating relationship of the tumor to the adjacent brain parenchyma ';
desc52 = 'Case 5 - Figure 2
HP. The tumor is composed of epithelioid cells, many with prominent nucleoli and/or nuclear pseudoinclusions ';
desc53 = 'Case 5 - Figure 3
Mitosis. Scattered mitotic figures are present ';
desc54 = 'Case 5 - Figure 4
Infil. The tumor infiltrates along Virchow-Robin spaces ';
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function winstatus(imgnum)
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