Renal Oncocytoma With Retrorenal Appendicitis: An Uncommon Juxtaposition of Neoplastic and Inflammatory Processes in the Context of HIV Infection. - Salem, Mohammed Salah E. Khalifa; Poppleton, Nathan; Varghese, Jacob; Alsammani, Mohammedsuror; Mukendi, Alain Mwamba (Clinical Case Reports, 2026)