[Rituximab as rescue therapy in refractory esophageal lichen planus].

Esophageal lichen planus (ELP) is a rare condition with unknown prevalence that can sometimes be underestimated due to the subtle and nonspecific findings of diagnostic workup. Oral lesions rarely extend to the esophageal mucosa, but when they do, the most frequent symptoms are dysphagia and odynophagia. There is often a significant delay in diagnosis and inadequate treatment.

[Study of celiac disease in adults with type 1 diabetes mellitus].

Celiac disease (CD) presents a wide clinical spectrum. There are asymptomatic or oligosymptomatic forms, which are difficult to diagnose. Since patients with untreated CD can develop severe complications, early diagnosis of these forms is important.

[Analysis of the clinical benefits and cost-effectiveness of performing a systematic second-look gastroscopy in benign gastric ulcer].

Introduction: We analyzed the need to routinely perform a second gastroscopy after an initial diagnosis of benign gastric ulcer.

Method: A total of 226 consecutive cases of gastric ulcer were reviewed. Sensitivity (S), specificity (Sp), positive and negative predictive value (PPV and NPV) and the accuracy of the initial gastroscopy plus biopsy were analyzed, both overall and according to the initial endoscopist's experience (attending or resident physician).

[Upper gastrointestinal bleeding secondary to Dieulafoy's lesion: differential features].

Objective: To analyze the possible differential features of upper gastrointestinal (GI) bleeding due to Dieulafoy's lesion (DL) compared with bleeding due to gastroduodenal ulcer.

Material And Methods: We evaluated variables associated with patient characteristics, hemorrhagic characteristics and clinical severity in 31 cases of bleeding secondary to DL and 31 cases of gastroduodenal ulcer bleeding. Univariate and multivariate statistical analysis were performed.