"A Concealed Malignancy" A Case Series on Primary Fallopian Tube Carcinoma.

Background: As rare as it is, primary fallopian tube carcinoma presents with a varied range of nonspecific signs and symptoms making its preoperative diagnosis a clinical challenge. It is often missed and is usually recognized later by histopathology. This paper aims to present four cases of fallopian tube cancer managed in our institution in a 5-year period with varied presentation and to discuss updates in diagnosis, management and prognosis in the light of recent literature. Methods and Results: All of the four cases were of different age group, presented differently and were diagnosed preoperatively to be of another etiology. The first case, 44 year old, initially presented with recurrent vaginal discharge. The patient then presented with supraclavicular nodes to be of metastatic origin. The second case, 58 year old, presented with vaginal spotting and on imaging, a pelvic mass that may represent ovarian new growth. The third and fourth case, 71 and 66 year old respectively, presented with a history of gradually enlarging abdominal mass with an imaging showing an adnexal mass. Intraoperatively, the first and third case revealed a fallopian tube that was thinned out and dilated to a granular and friable tissue. The second case had a right fallopian tube that cannot be grossly identified but an adnexal mass was noted. The fourth case showed a left fallopian tube that was converted to a tan irregular mass. Histopathology revelaed all of these cases as high grade fallopian tube serous carcinoma. Conclusion: To raise suspicion in the diagnosis of this rare carcinoma preoperatively should be given more importance so that a prompt investigation would be made and catching this disease in an early stage would be achieved. This paper showcased the varied presentation of this disease so as to avoid preoperative misdiagnosis and have a better head start on proper management. [ABSTRACT FROM AUTHOR]