FIGURE 8.

Benign cystic mesothelioma. Transverse grey scale ultrasound images (a, b) of the abdomen in a 38-year-old female reveal a well-defined cystic lesion around the right ovary with internal low-level echoes and a ground glass appearance suggestive of an endometrioma (white thick arrow in a). Another ill-defined thin-walled multiloculated cystic lesion (white thin arrow in b) is seen in midline and left side of lower abdomen and pelvis encasing the left ovary in its posterior aspect. Coronal CT image (c) of the abdomen reveals a well-defined hyperdense cyst of mean attenuation ~ 33 HU in the right adnexa (thick white arrow in c). Multilobulated fluid attenuation (~18 HU) cystic lesion with thin imperceptible walls is noticed in left lower abdomen and pelvis (thin white arrow). Sagittal reformatted CECT image (d) reveals a thin-walled multilobulated cystic lesion anterior and superior to uterus, encasing the left ovary posteriorly (arrowhead). Minimal fluid is observed within the endometrial cavity. No calcification or mural nodule is noted within the lesion.