Huge Peritoneal Hydatidosis Mimicking Ovarian Cyst
Published in the Journal of Obstetrics & Gynaecology of India, the authors present a rare case of huge primary peritoneal hydatidosis is presented, misdiagnosed as huge ovarian cyst.

An 18-years-old, primipara, presented with dyspnea and progressive enlargement of abdomen since 9 months. She was thin built, 145 cm tall, 46 kg, sick looking woman with waddling gait and huge abdomen. Pallor ++, Pulse 88/min, B.P. 110/64 mmHg and orthopnea present.

On abdominal examination abdomen was tense with engorgement of veins over the lateral sides and abdominal girth 128 cm.The lump was huge, cystic in consistency with well defined margins; fluid thrill present, but shifting dullness was absent. On vaginal examination uterine size could not be assessed, cervix and vagina were normal and healthy, fornices were clear.

Clinical features suggested a huge serous ovarian cyst. Her hemoglobin percentage was 8.5 gm/dl, blood group was O positive, hepatic and renal function tests were normal, ECG was within normal limits and chest X-ray PA view was normal. Ultrasonography was diagnostic of peritoneal hydatidosis, showing whole abdomen filled with single huge cyst, extending from xiphisternum to pelvis, with small echogenic cysts of 2.5 × 2.5 cm size within the larger cyst; occupying the whole abdomen.

Liver, kidney, spleen and uterus were of normal echo-texture and ovaries could not be visualized. No communication between the cyst wall and adjacent organs could be detected. Oral albendazole 400 mg was started and one unit of packed cell transfused. Suddenly after 2 days she became very dyspneic and emergency laparotomy by right paramedian incision was undertaken. As the peritoneum was nicked, thousands of small cysts of varying size gushed out. A wide bore suction cannula was attached to it and about 16 l of pale yellow colored hydatid fluid along with thousands of daughter cysts were removed.

Thin germinal layer was removed completely. The outer pericyst and ectocyst were adherent to the inner surface of anterior abdominal wall, bowel, inferior surface of liver, bladder and other pelvic organs, which could not be separated and hence left as such. Cyst wall had no communication with any adjacent organ. Peritoneal cavity was lavage with scolicidal agent 20% hypertonic saline and povidone-iodine solution and abdomen was closed after keeping a peritoneal drain.

One unit of fresh whole blood was transfused during surgery. Oral albendazole 400 mg/day was started from second post operative day. She developed minor febrile illness and abdominal distension, which was managed by broad spectrum antibiotics and antiflatulents. Abdominal drain was removed on second day and stitches on ninth post operative day. She was discharged on tenth day and advice albendazole 400 mg daily for 6 weeks. Follow up could not be done as the patient did not turn up.

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