The Friend Turned Foe: A Rare Presentation of Bilateral Empyema Secondary to the Perforated Appendix.

Acute appendicitis is one of the most common surgical emergencies encountered. Although studies have reported a rise in the number of cases over the past decade in Western countries, appendicitis is comparatively lower in Asian countries, mainly due to the prevailing dietary habits. Acute appendicitis can further complicate as either appendicular abscess or an appendicular lump or culminate into peritonitis following gangrene/rupture. Almost one-third of the patients with appendicitis present to the hospital with a ruptured appendix. Management of complicated appendicitis is complex, and the diagnosis itself becomes tricky when it presents unusually. Here, we describe the management of one such rare manifestation in a middle-aged female who had concomitant gangrenous appendicitis and bilateral pyothorax. This case report emphasizes that abdominal pathology can lead to bilateral intrathoracic collection without any preexisting thoracic pathology.