A CASE REPORT OF BERTOLOTTI SYNDROME INCIDENTALLY COEXISTING IN A 12 YEAR MALE WITH HISTORY OF PERINEAL BONE TRAUMA.

Introduction: Bertolotti's Syndrome (BS) is a rare cause of low back pain in adolescents, often associated with lumbosacral transitional vertebrae (LSTV). This condition results in structural changes at the lumbosacral junction, leading to pain through altered biomechanics and pseudoarthrosis. Due to its rarity and overlapping symptoms with other lumbar pathologies, BS is frequently undiagnosed. Case Presentation: This case report discusses a 12-year-old male patient that developed BS following trauma to the perineal region, presenting with low back pain and difficulty walking. Imaging studies revealed an enlarged left transverse process of the L5 vertebra articulating with the sacrum, consistent with Type II LSTV according to the Castellvi classification. Conclusion: This case highlights the importance of considering BS in the differential diagnosis of low back pain in young patients, particularly in the context of trauma. While conservative management can offer significant relief, surgical intervention may be necessary in refractory cases. Early diagnosis and tailored treatment are crucial for optimal outcomes, and further research is needed to establish standardized treatment guidelines and improve patient care.