en Obstetrics & Gynicology Obstetrics & Gynicology case report case report <p dir="ltr" style="text-align: justify;"><span style="font-family: times new roman;"><span style="color: rgb(0, 0, 255);"><strong><em>Background: </em></strong></span>Peritoneal tuberculosis accounts 1-2% of all forms of tuberculosis. Peritoneal tuberculosis is an important differential diagnosis for ovarian cancer in women with ascites, adnexal mass and elevated cancer antigen 125 (CA₁₂₅) levels. We report a case of a 32- year -old woman with multiple miliary peritoneal deposits mimicking advanced ovarian carcinoma.</span></p> <p dir="ltr" style="text-align: justify;"><span style="font-family: times new roman;"><span style="color: rgb(0, 0, 255);"><strong><em>Case Presentation:</em></strong></span> A 32-year-old drug addicted woman presented with menometrorrhagia, fever and shivering, ascites and pelvis mass. Ultrasonography revealed a 53&times;65 mm cyst in left ovary and ascites. Multiple miliary peritoneal deposits were observed during laparatomy without any mass, histologic examination confirmed tuberculosis of uterus, tubes, omentum, liver and external surfaces of small intestine. Finally, the patient recovered with anti-tuberculosis treatment.</span></p> <p dir="ltr" style="text-align: justify;"><span style="font-family: times new roman;"><span style="color: rgb(0, 0, 255);"><strong><em>Conclusion: </em></strong></span>These findings highlight considering tuberculosis in the differential diagnosis of any patients with adnexal mass, ascitis and elevated serum CA₁₂₅ even with negative cytology and bacteriology test results.</span></p> Tuberculosis, Ovary, CA125, Peritoneal, Carcinoma 61 63 http://caspjim.com/browse.php?a_code=A-10-263-1&slc_lang=en&sid=1 Shahla Yazdani shahla_yazdani_1348@yahoo.com 100319475328460018173 100319475328460018173 No Babol University of Medical Sciences Mahmod Sadeghi drm_sadeghihz@yahoo.com 100319475328460018174 100319475328460018174 No Infectious Diseases and Tropical Medicine Research Center, Babol University of Medical Sciences, Babol, Iran Abolhasan Alijanpour mojy_rad@yahoo.com 100319475328460018175 100319475328460018175 No Department of Surgery, Babol University of Medical Sciences, Babol, Iran Mojgan Naeimi rad mojy_rad@yahoo.com 100319475328460018176 100319475328460018176 Yes Clinical Research Development unit of Ayatollah Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran