/* Sequence of slide descriptions */
desc11 = 'Case 1 - Figure 1
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in stomach. There is a mucosal and submucosal pale appearing lymphoid infiltrate that surrounds occasional hyperplastic follicular centers. ';
desc12 = 'Case 1 - Figure 2
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in stomach. A higher magnification of Figure 1. ';
desc13 = 'Case 1 - Figure 3
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in stomach. Note the lymphoepithelial lesion. ';
desc14 = 'Case 1 - Figure 4
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in stomach. See the "centrocyte-like" pale cells characteristic of MALT lymphomas. ';
desc21 = 'Case 2 - Figure 1
Mantle cell lymphoma in colonic biopsy (multiple lymphomatous polyposis). There is a very vaguely nodular and diffuse dense lymphoid infiltrate. ';
desc22 = 'Case 2 - Figure 2
Mantle cell lymphoma in colonic biopsy (multiple lymphomatous polyposis). The infiltrate is composed of small lymphoid cells. A gland shows some infiltration by lymphocytes. ';
desc23 = 'Case 2 - Figure 3
Mantle cell lymphoma in colonic biopsy (multiple lymphomatous polyposis), paraffin immunoperoxidase. The positive cyclin D1 stain confirms the diagnosis here of a mantle cell lymphoma. ';
desc31 = 'Case 3 - Figure 1
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in parotid. Most of the salivary gland is replaced by a dense lymphoid infiltrate with large confluent pale areas seen at low magnification. ';
desc32 = 'Case 3 - Figure 2
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in parotid. Note the lymphoepithelial lesions (LEL) with numerous pale lymphoid cells. These centrocyte-like/monocytoid-appearing cells extend beyond the LEL and form confluent sheets. Also see the hyperplastic follicular centers. ';
desc33 = 'Case 3 - Figure 3
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type in parotid. See the lymphoepithelial lesion associated with the neoplastic centrocyte-like/monocytoid-appearing lymphoid cells. Some transformed cells are also present. ';
desc41 = 'Case 4 - Figure 1
Splenic marginal zone lymphoma in spleen. There are prominent biphasic white pulp nodules with a core of smaller darker appearing lymphoid cells surrounded by a paler marginal zone. In addition, there are small nodules in the red pulp. ';
desc42 = 'Case 4 - Figure 2
Splenic marginal zone lymphoma in spleen. See the biphasic nature of one of the white pulp nodules. ';
desc43 = 'Case 4 - Figure 3
Splenic marginal zone lymphoma in spleen. The smaller lymphocytes with little cytoplasm that comprise the core of the white pulp nodules are seen on the left. Most of the figure depicts the marginal zone that includes larger cells with more cytoplasm and more dispersed chromatin. Occasional transformed cells are also present. ';
desc51 = 'Case 5 - Figure 1
Hepatosplenic T-cell lymphoma, liver. Liver sinuses are expanded by a monomorphic population of lymphocytes. There is little involvement of portal triads (Upper right). ';
desc52 = 'Case 5 - Figure 2
Hepatosplenic T-cell lymphoma, liver. The lymphocytes are medium to large and have partially dispersed chromatin and indistinct, pale cytoplasm. ';
desc53 = 'Case 5 - Figure 3
Hepatosplenic T-cell lymphoma, liver, paraffin immunoperoxidase, antibody polyclonal-anti CDS. The lymphocytes are CD3+. ';
desc54 = 'Case 5 - Figure 4
Hepatosplenic T-cell lymphoma, spleen. The red pulp is expanded by a homogeneous population of medium-sized lymphocytes with preferential localization to the sinuses. ';
desc61 = 'Case 6 - Figure 1
Subcutaneous panniculitis-like T-cell lymphoma, skin/soft tissue. Tumor cells infiltrate subcutaneous tissue in a lobular pattern. Areas of fat necrosis are present. ';
desc62 = 'Case 6 - Figure 2
Subcutaneous panniculitis-like T-cell lymphoma, skin/soft tissue. Tumor cells rim the fat cells and partially invade a small vessel. Most tumor cells are medium to large and have hyperchromatic, irregular nuclei. Focal areas of fat necrosis are present (Upper right). ';
desc63 = 'Case 6 - Figure 3
Subcutaneous panniculitis-like T-cell lymphoma, skin/soft tissue. Macrophages are prominent in areas of necrosis and some show erythrophagocytosis. ';
desc71 = 'Case 7 - Figure 1
Primary cutaneous anaplastic large cell lymphoma, skin biopsy. Tumor cells diffusely efface the dermis with sparing of the epidermis. ';
desc72 = 'Case 7 - Figure 2
Primary cutaneous anaplastic large cell lymphoma, skin biopsy. The tumor cells are large, pleomorphic and have a high mitotic rate. ';
desc73 = 'Case 7 - Figure 3
Primary cutaneous anaplastic large cell lymphoma, skin biopsy, paraffin immunoperoxidase, antibody Ber-h-12. The tumor cells have strong CD30 expression in a membrane and Golgi pattern. ';
desc74 = 'Case 7 - Figure 4
Primary cutaneous anaplastic large cell lymphoma, skin biopsy, paraffin immunoperoxidase, antibody ALK1. The tumor cells are ALK1 negative (left panel) with a positive control (right panel). ';
desc81 = 'Case 8 - Figure 1
Nasal NK/T-cell lymphoma, paranasal sinus biopsy. Large areas of necrosis are present in the soft tissue. ';
desc82 = 'Case 8 - Figure 2
Nasal NK/T-cell lymphoma, paranasal sinus biopsy. Higher magnification reveals infiltration and destruction of a vessel by large, dysplastic tumor cells with hyperchromatic nuclei. ';
desc83 = 'Case 8 - Figure 3
Nasal NK/T-cell lymphoma, paranasal sinus biopsy, paraffin immunoperoxidase, antibody Beta-F1. The tumor cells lack expression of T cell receptor beta chain. A small reactive lymphocyte is positive. ';
desc84 = 'Case 8 - Figure 4
Nasal NK/T-cell lymphoma, paranasal sinus biopsy, paraffin immunoperoxidase, antibody T1A-1. Tumor cells express the cytolytic granule protein TIA-1. ';
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