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Evaluation test #19832/2017

QUESTION 1
Clinically, gastric ulcers are characterized by:
Hemorrhage typically in the chronic form with mane.
Metrorrhagia.
Anemia and fecal occult blood.
Rectorragia and melena.

QUESTION 2
The typical location of ulcers produced by gastric carcinomas is in:
Lesser curvature of stomach.
Anthropiloric region.
Fundus.
Cardias.

QUESTION 3
Neoplastic cells in the signet ring cell carcinoma:
They have a broad cytoplasm with a large vacuole containing mucopolysaccharides.
They are flattened, with scarce cytoplasm and are arranged concentrically, forming "keratin pearls".
Signet ring cells are a histological finding without diagnostic relevance in dogs.
This tumor only is observed in the mucosa, not in deeper layers.

QUESTION 4
The presence of ulcers in the stomach during necropsy:
The histopathological study of endoscopic biopsies is not useful since the diagnosis is mainly by imaging techniques.
The presence of a blood clot in the center of the lesion is characteristic of a chronic process.
Discards neoplastic etiology as tumors do not produce an increase level of gastric acidity.
Differential diagnosis must be made with numerous diseases, including neoplasms and chronic kidney disease.

QUESTION 5
The growth-pattern of signet ring cell carcinomas are:
They originate frequently in the serosa and extend towards the light.
They form concentric nests with keratin inside.
Laces of neoplastic cells surround poor cellular areas, well demarcated and partially encapsulated.
This tumor displays an expansive and infiltrative growth, disturbing and replacing normal tissue.