Giant spigelian hernia in a middle-aged female: The importance of intraoperative ultrasonography for hernia localization-Case report.

Spigelian hernia is a rare type of abdominal wall hernia that accounts for only 0.12% of all abdominal hernias. A Spigelian hernia, also known as a spontaneous lateral ventral hernia or a hernia of the semilunar line, occurs when a part of the abdominal contents protrudes through the Spigelian fascia. Due to its anatomical location, Spigelian hernia can be difficult to diagnose through physical examination alone. Here we report a case of a 40-year-old female who experienced right abdominal pain and swelling, where ultrasonography imaging was crucial in the intraoperative diagnosis of Spigelian hernia. The patient underwent laparotomy mesh repair to address the condition. The lack of consistent physical findings and the rarity of the disease require a high level of clinical suspicion in the diagnosis of a Spigelian hernia. Its associated abdominal complaints are often vague and nonspecific, making it even more challenging. This case emphasizes the importance of utilizing imaging techniques to aid in the diagnosis of a Spigelian hernia and prompt surgical intervention to prevent complications associated with the hernia.