Non-traumatic lower abdominal pain: ultrasonographic and clinical differential diagnosis
IRAKLIS PERYSINAKIS1 , EVANGELIA EMMANOUIL VASSALOU2,3
1UNIVERSITY HOSPITAL OF HERAKLION, DEPARTMENT OF SURGICAL ONCOLOGY, HERAKLION, Greece
2UNIVERSITY HOSPITAL OF HERAKLION, DEPARTMENT OF MEDICAL IMAGING, HERAKLION, Greece
3GENERAL HOSPITAL OF SITIA, DEPARTMENT OF MEDICAL IMAGING, SITIA, Greece
Corresponding Author: EVANGELIA EMMANOUIL VASSALOU ,Tel: 00302843340152, Fax: 00302843340156, Email: vassalou.e@hotmail.com
Received: December 12, 2023;  Accepted: January 27, 2024.  Published online: January 27, 2024.
ABSTRACT
Lower abdominal pain is a frequent complaint with a diverse differential diagnosis. In cases of atypical presentations and nonspecific findings, further imaging evaluation is required in order to confirm the clinical suspicion and differentiate between self-limited disorders and those requiring immediate intervention. In this context, according to European recommendations, transabdominal ultrasonography is indicated as a first-line imaging modality for clinically suspected acute appendicitis and acute diverticulitis, the most common causes of right and left lower quadrant abdominal pain, respectively, and suspected obstetrical/gynecological and genitourinary diseases. Computed tomography serves as a backup tool for inconclusive cases. This pictorial essay describes the sonographic appearance of the most common disorders associated with lower abdominal pain coupled with the clinical characteristics of each entity.
Keywords: Lower abdominal pain; Differential diagnosis; Ultrasonography; Imaging
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