What type of lesion is seen with Mallory Weiss tears during endoscopic evaluation?

Mallory Weiss tears are characterized by linear mucosal tears in the esophagus and/or stomach, typically occurring at the gastroesophageal junction. These tears result from severe vomiting or retching, leading to the tearing of the mucosa. During an endoscopic evaluation, the appearance of these tears is distinctive and can be directly observed as linear, jagged, or slashed-looking lesions in the lining of the upper gastrointestinal tract.

Understanding the nature of these tears is essential for differentiation from other types of lesions. For instance, exophytic tumors grow outward from the surface, while flat dysplastic lesions suggest alterations in cell structure due to pathology. Polypoid adenomas, on the other hand, present as raised lesions. Thus, Mallory Weiss tears are unique in their linear and often superficial nature, aligning perfectly with the description provided as linear mucosal tears.