Which condition may present constant abdominal pain in the right lower quadrant as a symptom?

Constant abdominal pain in the right lower quadrant is a classic presentation often associated with Crohn's disease. This inflammatory bowel disease can affect any part of the gastrointestinal tract but is most commonly found in the ileum and the colon, with inflammation leading to pain that can be persistent and localized to the right lower abdomen. Patients may also experience additional symptoms such as diarrhea, weight loss, and fatigue, but the hallmark of Crohn's can indeed be the abdominal pain stemming from inflammation and potential complications like strictures or abscesses.

In contrast, ulcerative colitis typically presents with pain that may be associated with more generalized abdominal discomfort rather than localized pain, and it is usually accompanied by diarrhea containing blood and mucus. Gastroesophageal reflux disease often manifests with symptoms related to the esophagus, such as heartburn and regurgitation, rather than abdominal pain, especially in a specific quadrant. Peptic ulcer disease usually presents with epigastric pain, which may be more intermittent and related to meals, rather than constant abdominal pain in the right lower quadrant. Thus, the features of Crohn's disease align well with the symptom of constant right lower quadrant pain.