/* Sequence of slide descriptions */
desc11 = 'Case 1 - Figure 1
Low power of the allograft lung shows a few small cystic spaces with focal regions of hypercellularity in their walls. ';
desc12 = 'Case 1 - Figure 2
The hypercellularity seen in Figure 1 corresponds to a spindle cell proliferation. ';
desc13 = 'Case 1 - Figure 3
The spindle cell proliferations seen in figure 2 is HMB 45 positive. ';
desc14 = 'Case 1 - Figure 4
Classical lymphangiomyomatosis with large cystic spaces. ';
desc15 = 'Case 1 - Figure 5
The wall of the cysts in figure 4 shows spindle cells resembling smooth muscle cells. ';
desc16 = 'Case 1 - Figure 6
The spindle cells in Figure 5 show HMB 45 positivity with some polygonal cells more darkly staining. ';
desc21 = 'Case 2 - Figure 1
Usual interstitial pneumonia. Interstitial pneumonia with heterogeneous appearance at low magnification, with alternating areas of normal lung, fibrosis and honeycomb change (H&E, 20x). ';
desc22 = 'Case 2 - Figure 2
Usual interstitial pneumonia. Interstitial inflammation and fibrosis is patchy, with fibrosis mainly comprised of collagen deposition (H&E, 100x). ';
desc23 = 'Case 2 - Figure 3
Usual interstitial pneumonia. Scattered foci comprised of proliferating fibroblasts in a myxoid background can also be seen (H&E, 200x). ';
desc24 = 'Case 2 - Figure 4
Usual interstitial pneumonia. Areas of honeycomb change are comprised of dilated airspaces, filled with mucin, and surrounded by fibrosis resulting in architectural distortion (H&E, 40x). ';
desc25 = 'Case 2 - Figure 5
Usual interstitial pneumonia. The dilated airspaces are frequently lined by bronchiolar epithelium but squamous metaplasia can also be seen (H&E, 200x). ';
desc26 = 'Case 2 - Figure 6
Squamous cell carcinoma. The mass is comprised of large anastomosing nests of cells with central necrosis, embedded in a fibrotic stroma (H&E, 40x). ';
desc27 = 'Case 2 - Figure 7
Squamous cell carcinoma. At high power, dyskeratosis and intercellular bridges are seen (H&E, 400x). ';
desc31 = 'Case 3 - Figure 1
Whole mount image showing sharply demarcated airway centered lesions. ';
desc32 = 'Case 3 - Figure 2
Lower power view showing interstitial inflammation and fibrosis centered around a respiratory bronchiole. Note intense lymphoid infiltrate. Characteristic airspace macrophages and giant cells can be seen. ';
desc33 = 'Case 3 - Figure 3
High power view showing macrophages and giant cells in airspaces. Note that some of the giant cells have phagocytized macrophages, a typical finding in hard metal disease. ';
desc41 = 'Case 4 - Figure 1
Low magnification view showing eosinophilic material filling airspaces. ';
desc42 = 'Case 4 - Figure 2
Higher magnification photomicrograph showing the granular appearance of the airspace exudate. Note that the alveolar septa are only minimally thickened, and there is no significant inflammation. ';
desc43 = 'Case 4 - Figure 3
High magnification photomicrograph showing the coarsely granular nature of the intraalveolar eosinophilic material. The adjacent alveolar septa are normal except for mild hyperplasia of type 2 pneumocytes.';
desc51 = 'Case 5 - Figure 1
Low magnification photomicrograph showing bronchiolocentric infiltrate of predominantly mononuclear cells in Langerhans\' cell histiocytosis. ';
desc52 = 'Case 5 - Figure 2
Higher magnification photomicrograph of pulmonary Langerhans\' cell histiocytosis showing peribronchiolar and intraluminal infiltrate in which histiocyte-like cells predominate. ';
desc53 = 'Case 5 - Figure 3
High magnification photomicrograph showing numerous Langerhans\' cells characterized by convoluted nuclei, inconspicuous nucleoli, and abundant eosinophilic cytoplasm with indistinct cytoplasmic borders. ';
desc54 = 'Case 5 - Figure 4
High magnification photomicrograph showing strong diffuse immunoreactivity for CD1a in Langerhans\' cells. ';
function parnav(imgnum)
{
parent.dir = '93rd';
eval("parent.desc = desc"+imgnum);
eval("parent.slidenum = 'pulm"+imgnum+"'");
slidepop();
return;
}
function winstatus(imgnum)
{
eval("window.status = desc"+imgnum+";");
return;
}