Comparison of gastric and duodenal lesions in dogs and cats with and without lymphocytic-plasmacytic enteritis

Kanji Yamasaki From the Chemicals Inspection and Testing Institute, 3-822 Ishii, Hita 877, Oita, Japan (Yamasaki), Suematsu Animal Clinic, 1-30 Nakajou, Hita 877, Oita, Japan (Suematsu), and Takahashi Pet Clinic, 6-31 Nobori, Kasuga 816, Fukuoka, Japan (Takahashi).

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Hiroaki Suematsu From the Chemicals Inspection and Testing Institute, 3-822 Ishii, Hita 877, Oita, Japan (Yamasaki), Suematsu Animal Clinic, 1-30 Nakajou, Hita 877, Oita, Japan (Suematsu), and Takahashi Pet Clinic, 6-31 Nobori, Kasuga 816, Fukuoka, Japan (Takahashi).

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Takeshi Takahashi From the Chemicals Inspection and Testing Institute, 3-822 Ishii, Hita 877, Oita, Japan (Yamasaki), Suematsu Animal Clinic, 1-30 Nakajou, Hita 877, Oita, Japan (Suematsu), and Takahashi Pet Clinic, 6-31 Nobori, Kasuga 816, Fukuoka, Japan (Takahashi).

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Objective

To compare histologic lesions in the stomach and duodenum of dogs and cats with and without lymphocytic-plasmacytic enteritis (LPE).

Design

Case-control study.

Animals

20 clinically normal dogs, 40 dogs with LPE, 10 clinically normal cats, and 20 cats with LPE.

Results

Unevenness of the mucosal surface was detected in the stomach of 4 of the 20 (20%) clinically normal dogs and 10 of the 40 (25%) dogs with LPE. Mucosal friability was detected in the duodenum of 16 (40%) of the dogs with LPE and 10 of the 20 (50%) cats with LPE. Histologically, clinically normal dogs and dogs with LPE had various degrees of fibrosis in the gastric lamina propria. All of the clinically normal cats and the cats with LPE had slight gastric fibrosis. Clinically normal cats had infiltrates of Inflammatory cells similar to those seen in the clinically normal dogs. Significantly more plasma cells and lymphocytes were seen in the duodenal lamina propria of dogs and cats with LPE than in the duodenal lamina propria of clinically normal animals.

Clinical Implications

LPE should be diagnosed by counting the number of Inflammatory cells in the duodenal lamina propria and then comparing that number with the number seen in clinically normal animals. (J Am Vet Med Assoc 1996;209:95–97)

Objective

To compare histologic lesions in the stomach and duodenum of dogs and cats with and without lymphocytic-plasmacytic enteritis (LPE).

Design

Case-control study.

Animals

20 clinically normal dogs, 40 dogs with LPE, 10 clinically normal cats, and 20 cats with LPE.

Results

Unevenness of the mucosal surface was detected in the stomach of 4 of the 20 (20%) clinically normal dogs and 10 of the 40 (25%) dogs with LPE. Mucosal friability was detected in the duodenum of 16 (40%) of the dogs with LPE and 10 of the 20 (50%) cats with LPE. Histologically, clinically normal dogs and dogs with LPE had various degrees of fibrosis in the gastric lamina propria. All of the clinically normal cats and the cats with LPE had slight gastric fibrosis. Clinically normal cats had infiltrates of Inflammatory cells similar to those seen in the clinically normal dogs. Significantly more plasma cells and lymphocytes were seen in the duodenal lamina propria of dogs and cats with LPE than in the duodenal lamina propria of clinically normal animals.

Clinical Implications

LPE should be diagnosed by counting the number of Inflammatory cells in the duodenal lamina propria and then comparing that number with the number seen in clinically normal animals. (J Am Vet Med Assoc 1996;209:95–97)

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