Endoscopic view of 4th day. The residual bezoar still remained with fragmentation (total amount of administrated cola was 9 L
• Emily F/7y • voiced no complaints • her pediatrician noted a nontender palpable mass in the child’s stomach • 患病前父母离异
Pharmobezoars — Pharmacobezoars, composed of ingested medications, have become increasing recognized. Examples include extended release nifedipine （硝苯地平缓释片）, theophylline （茶碱）, enteric-coated aspirin（肠 溶型阿司匹林）, sodium alginate （海藻酸钠）, and sucralfate（硫糖 铝）
TYPES OF BEZOARS
• Bezoars are classified according to their composition The major types are phytobezoars（植物性胃石）, trichobezoars（动物性胃石）, and pharmacobezoars（药物性胃石）. • 此外还有继发性胃石及混合性胃石
Phytobezoars
Trichobezoars----Rapunzel Syndrome
• Trichobezoars — Trichobezoars, composed of hair, usually occur in young women with psychiatric disorders. Trichotillomania (hair pulling) and trichophagia (hair eating) usually precede trichobezoar formation. A small number of patients have been reported in whom the gastric trichobezoar has a long tail and extends throughout the small bowel to the cecum. This condition, known as the Rapunzel syndrome, occurs almost exclusively in young girls
