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Book Chapter

Oropharynx

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-2
ISBN: 978-1-933477-61-9
... lymphoid tissue (MALT) lymphoma, and Burkitt lymphoma ( 133 – 135 ). Extramedullary plasmacytomas can occur in the palatine tonsil, palate, pharynx, and base of tongue, as well, either as isolated lesions or as part of multiple myeloma. Classic Hodgkin lymphomas occasionally...
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Book Chapter

Gastrointestinal Tract

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-13
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... Childhood asthma and other allergic disorders (such as eczema and rhinitis) Gastric B-cell non-Hodgkin (mucosal-associated lymphoid lymphoid tissue [MALT]) lymphoma Possibly:  Metabolic syndrome/obesity  Chronic inflammatory bowel disease, diarrheal disease, and tuberculosis Idiopathic...
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Book Chapter

Respiratory Tract

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-12
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... Pulse-temperature dissociation Endo- and myocarditis, hepatitis, encephalitis, and severe sepsis Possible role in mucosa-associated lymphoid tissue (MALT) lymphoma Lobar or interstitial infiltrates Normal white blood cell Q fever (Coxiella burnetii) Fever and chills, general malaise...
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Images
Figure 12-4

EXTRANODAL MARGINAL ZONE LYMPHOMA OF MUCOSA-ASSOCIATED LYMPHOID TISSUE (MAL...

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in Rare Lesions > Tumors of the Mammary Gland
Published: 01 January 2024
EXTRANODAL MARGINAL ZONE LYMPHOMA OF MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT LYMPHOMA) Figure 12-4 EXTRANODAL MARGINAL ZONE LYMPHOMA OF MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT LYMPHOMA) Low- (A), intermediate- (B), and high- (C) power images of MALT lymphoma arising in the breast. More about this image found in EXTRANODAL MARGINAL ZONE LYMPHOMA OF MUCOSA-ASSOCIATED LYMPHOID TISSUE (MAL...
Book Chapter

Rare Lesions

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 18
Published: 01 January 2024
10.55418/9781933477367-12
ISBN-10: 1-933477-36-9
ISBN: 978-1-933477-36-7
..., atypical cells. D: A keratin stain is negative in the malignant cells. The constellation of findings is consistent with a diagnosis of DLBCL. EXTRANODAL MARGINAL ZONE LYMPHOMA OF MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT LYMPHOMA) Figure 12-4 EXTRANODAL MARGINAL ZONE LYMPHOMA OF MUCOSA-ASSOCIATED LYMPHOID...
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Book Chapter

Thyroid Gland

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 13
Published: 01 November 2022
10.55418/9781933477251-3
ISBN-10: 1-933477-25-3
ISBN: 978-1-933477-25-1
... thyroid lymphoma. Some of these cases undoubtedly represent mucosa-associated lymphoid tissue (MALT) lymphomas of the thyroid gland as described by Isaacson ( 475 ) and later by other investigators ( 476 ). Hashimoto thyroiditis may share some histologic features with Graves disease, and a condition...
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Book Chapter

Tumors of Hematopoietic and Lymphoid Origin

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 12
Published: 01 August 2022
10.55418/9781933477220-09
ISBN-10: 1-933477-22-9
ISBN: 978-1-933477-22-0
... sources ( 5 , 6 ) for those lymphoid neoplasms that affect the testis, either primarily or secondarily. Among these are extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) (rarely and usually after transformation to a diffuse large B-cell morphology) ( 7 , 8 ), mantle cell...
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Images
Figure 8-2

MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA Grossly, MALT lymphoma h...

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in Hematolymphoid Neoplasms of the Major Salivary Glands > Tumors of the Salivary Glands
Published: 01 May 2021
MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA Figure 8-2 MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA Grossly, MALT lymphoma has the typical appearance of lymphoma: a diffuse, nodular, tan-white, fleshy-appearing mass. More about this image found in MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA Grossly, MALT lymphoma h...
Images
Figure 8-4

MALT LYMPHOMA Left: The morphologic spectrum of MALT lymphoma includes a m...

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in Hematolymphoid Neoplasms of the Major Salivary Glands > Tumors of the Salivary Glands
Published: 01 May 2021
MALT LYMPHOMA Figure 8-4 MALT LYMPHOMA Left: The morphologic spectrum of MALT lymphoma includes a monomorphic population of monocytoid lymphocytes characterized by an abundant amount of pale staining cytoplasm. Right: Centrocytic lymphocytes with occasional larger transformed lymphocytes More about this image found in MALT LYMPHOMA Left: The morphologic spectrum of MALT lymphoma includes a m...
Images
Figure 8-3

MALT LYMPHOMA A: This expanding tumor has completely replaced a portion of...

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in Hematolymphoid Neoplasms of the Major Salivary Glands > Tumors of the Salivary Glands
Published: 01 May 2021
MALT LYMPHOMA Figure 8-3 MALT LYMPHOMA A: This expanding tumor has completely replaced a portion of the parotid acinar tissue with loss of lobular architecture. Small separate foci of early MALT lymphoma are seen to the left of the large mass. B: Higher magnification shows an expanding corona More about this image found in MALT LYMPHOMA A: This expanding tumor has completely replaced a portion of...
Images
Figure 8-5

MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY A: Diffuse pan-B-cell marker CD20 stai...

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in Hematolymphoid Neoplasms of the Major Salivary Glands > Tumors of the Salivary Glands
Published: 01 May 2021
MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY Figure 8-5 MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY A: Diffuse pan-B-cell marker CD20 stains lymphocytes. B: Pan-B-cell marker PAX5 stains most of the lymphocytes. C: The same microscopic field shows only a minor population of lymphocytes expressing the pan-T-cell More about this image found in MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY A: Diffuse pan-B-cell marker CD20 stai...
Images
Figure 8-6

MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY This infiltrative collection of lympho...

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in Hematolymphoid Neoplasms of the Major Salivary Glands > Tumors of the Salivary Glands
Published: 01 May 2021
MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY Figure 8-6 MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY This infiltrative collection of lymphocytes diffusely expresses kappa light chain (left) with minimal expression of lambda light chain (right), indicating light chain restriction consistent with a clonal process. More about this image found in MALT LYMPHOMA: IMMUNOHISTOCHEMISTRY This infiltrative collection of lympho...
Book Chapter

Renal Tumors of Adults

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 9
Published: 01 November 2021
10.55418/9781933477176-2
ISBN-10: 1-933477-17-2
ISBN: 978-1-933477-17-6
... with immunosuppression occur in patients who have undergone renal transplantation. Here the lymphoma cells are typically of donor origin. Mucosa-associated lymphoid tissue (MALT) lymphomas occur in the kidney and some have been centered on the renal pelvis ( 781 ). Intravascular lymphoma is sometimes detected on renal...
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Book Chapter

Tumors of the Urinary Bladder

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 9
Published: 01 November 2021
10.55418/9781933477176-3
ISBN-10: 1-933477-17-2
ISBN: 978-1-933477-17-6
... is rare ( 876 – 878 ). Most of the literature is represented by case reports, with only occasional small series. Most of the tumors are low or intermediate grade, but occasionally high-grade lymphomas are reported. The most common low-grade lesions are B-cell lymphomas of MALT type ( 877 ). Rare T-cell...
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Book Chapter

Hematolymphoid Neoplasms of the Major Salivary Glands

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 5
Published: 01 May 2021
10.55418/9781933477947-08
ISBN-10: 1-933477-94-6
ISBN: 978-1-933477-94-7
... of ductal epithelium by small lymphocytes. C: Most of the lymphocytes in this focus are helper T cells expressing CD4. MALT LYMPHOMA Figure 8-3 MALT LYMPHOMA A: This expanding tumor has completely replaced a portion of the parotid acinar tissue with loss of lobular architecture. Small separate foci...
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Book Chapter

Hematopoietic and Lymphoid Tumors

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 7
Published: 01 September 2021
10.55418/9781933477121-3
ISBN-10: 1-933477-12-1
ISBN: 978-1-933477-12-1
... identifiable component of the MALT lymphoma and are typically found in a subepidermal location and at the lateral and deep peripheries of the infiltrate ( fig. 3-9 ). Less commonly, MALT lymphoma is more advanced at presentation, with sheets of neoplastic marginal zone cells, monocytoid cells...
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Images
Figure 7-2

OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA A: A fles...

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in Ocular Adnexal Hematolymphoid Neoplasms and Tumor-Like Lesions > Tumors of the Eye and Ocular Adnexa
Published: 01 February 2021
OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA Figure 7-2 OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA A: A fleshy orange-salmon conjunctival forniceal mass is seen. B: There is a diffuse sheet-like infiltrate of small lymphocytes in the conjunctival More about this image found in OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA A: A fles...
Images
Figure 7-2

OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA A: A fles...

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in Ocular Adnexal Hematolymphoid Neoplasms and Tumor-Like Lesions > Tumors of the Eye and Ocular Adnexa
Published: 01 February 2021
OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA Figure 7-2 OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA A: A fleshy orange-salmon conjunctival forniceal mass is seen. B: There is a diffuse sheet-like infiltrate of small lymphocytes in the conjunctival More about this image found in OCULAR ADNEXAL MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA A: A fles...
Images
Figure 11-8

PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) A: Low-p...

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in Intraocular Hematolymphoid Neoplasms > Tumors of the Eye and Ocular Adnexa
Published: 01 February 2021
PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) Figure 11-8 PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) A: Low-power view in an evisceration for a perforated eye shows detached retina (R) and cloudy vitreous (V) (acute endophthalmitis secondary More about this image found in PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) A: Low-p...
Images
Figure 11-9

PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) Left: In...

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in Intraocular Hematolymphoid Neoplasms > Tumors of the Eye and Ocular Adnexa
Published: 01 February 2021
PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) Figure 11-9 PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) Left: In an evisceration for a perforated eye, positive staining of few cells with kappa light chain by in situ hybridization. Right: Positive staining More about this image found in PRIMARY CHOROIDAL EXTRANODAL MARGINAL B-CELL LYMPHOMA (MALT TYPE) Left: In...