{'fraction_non_alphanumeric': 0.0340632603406326, 'fraction_numerical': 0.030008110300081103, 'mean_word_length': 4.634703196347032, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Chronic appendicitis: uncommon cause of chronic abdominal pain

The exact pathophysiology of acute appendicitis is well known, but the existence of chronic appendicitis (CA) appears to be controversial among many physicians. Several case reports and case series from the last two decades have provided supporting evidence that CA, although uncommon, does occur [Mattei et al. 1994; Rao et al. 1998; Mussack et al. 2002]. CA is a rare clinical entity that poses a diagnostic and therapeutic dilemma for clinicians since a majority of patients present with atypical symptoms. The incidence of CA is 1.5% of all cases with a history of acute appendicitis [Shah et al. 2013], and is thought to be secondary to partial and transient obstruction of the appendix [Vanwinter and Beyer, 2004; Shah et al. 2013]. Although not considered a surgical emergency, it is often a missed diagnosis with complications such as perforation or abscess formation [Shah et al. 2013]. computed tomography (CT) scan is considered to be the best test for diagnosis of CA [Shah et al. 2013]. We describe a 39-year-old man with a history of chronic right lower quadrant pain greater than 6 months duration who was found to have CA while undergoing a colonoscopy.