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Mucosa: MALT

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

Peyer’s patch <p>Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x </p>

Peyer’s patch

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

- Diffuse lymphoid tissue <p>Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x </p>

- Diffuse lymphoid tissue

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

- Lymphoid nodules <p>Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x </p>

- Lymphoid nodules

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

Mucosa <p>Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x </p>

Mucosa

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

- Muscularis mucosae <p>Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x </p>

- Muscularis mucosae

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

Submucosa <p>Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x </p>

Submucosa

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

Muscularis externa <p>Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x </p>

Muscularis externa

Mucosa-associated lymphoid tissue (MALT) is present all along the length of the tubular digestive tract and consists of both diffuse and nodular lymphoid tissue. Large accumulations of MALT, Peyer’s patches, are particularly prominent in the lamina propria of the ileum as shown in these images. Larger lymphoid nodules often extend into the submucosa. MALT filters tissue fluid, detecting foreign antigens and initiating an immune response. 50x, 10x

Image sources <p>These images were taken of slides in the University of Pittsburgh and Nova Southeastern University slide collections.</p>

Image sources

These images were taken of slides in the University of Pittsburgh and Nova Southeastern University slide collections.

Main Slide Peyer’s patch - Diffuse lymphoid tissue - Lymphoid nodules Mucosa - Muscularis mucosae Submucosa Muscularis externa Image sources