Rare Diseases Symptoms Automatic Extraction

Pathophysiology of Barrett's esophagus-associated neoplasia: circumferential spatial predilection.

[esophageal adenocarcinoma]

The prevalence rates of Barrett's esophagus (BE) and esophageal adenocarcinoma (EAC) arising from BE show striking geographic patterns as they are much more common in Western as compared with Asian countries. However, recent epidemiological studies indicate that the number of patients with BE and EAC are gradually increasing in Asia including Japan, corresponding to the increase in prevalence of gastroesophageal reflux disease (GERD). Because the prognosis of patients with advanced-stage EAC remains poor, early detection of neoplastic lesion in those with BE has led to recent interest in effective treatment. Several promising studies have revealed that early neoplasia in BE is mainly located in the right anterior wall of the distal esophagus. Interestingly, this endoscopic characteristic has been found in both Western and Japanese populations. Potential pathophysiologic explanations underlying the circumferential distribution of neoplasia in BE include a nonuniform asymmetric distribution of esophageal acid exposure, with a tendency toward mucosal acid-related injury on the right side of the esophageal wall in patients with GERD, and the functional structure of the lower esophageal sphincter. Findings of the present study should improve lesion detection and aid in developing a target biopsy protocol for surveillance of BE.

Diseases presenting "neoplasia" symptom

  • achondroplasia
  • acute rheumatic fever
  • adrenal incidentaloma
  • aniridia
  • carcinoma of the gallbladder
  • cholangiocarcinoma
  • cowden syndrome
  • cushing syndrome
  • cutaneous mastocytosis
  • dedifferentiated liposarcoma
  • dentin dysplasia
  • dystrophic epidermolysis bullosa
  • epidermolysis bullosa simplex
  • esophageal adenocarcinoma
  • esophageal carcinoma
  • esophageal squamous cell carcinoma
  • familial hypocalciuric hypercalcemia
  • hodgkin lymphoma, classical
  • liposarcoma
  • lymphangioleiomyomatosis
  • neuralgic amyotrophy
  • oligodontia
  • oral submucous fibrosis
  • pleomorphic liposarcoma
  • primary effusion lymphoma
  • pyomyositis
  • von hippel-lindau disease
  • waldenström macroglobulinemia
  • well-differentiated liposarcoma
  • werner syndrome
  • wolf-hirschhorn syndrome

This symptom has already been validated