“…Avni and colleagues were the first to report the sonographic thickening of the pelvic wall to be of diagnostic value in the clinical setting of APN [23]. Other study groups, however, have subsequently already demonstrated the non-specificity of this diagnostic sonographic parameter [14,24,25], as it may also be encountered in ureteral obstruction, acute tubular necrosis, acute rejection of allografts, HIV-associated nephropathy [26] or candidiasis [27]. Our study results confirm these studies.…”