A Huge Ovarian Cyst in a Hysterectomized Bitch

Abstract

A 11-year-old, spayed, female mixed breed-dog was presented with an abdominal mass that was detected 1 month ago. Upon abdominal palpation a large, firm, oval shaped, movable mass was found in the mid-abdominal region. Survey radiograph of the abdomen demonstrated an oval soft tissue dense mass located on the right side of the abdominal cavity. A large, heteregenous and cystic mass with solid components occupying the majority of the abdomen and a small, cystic mass with solid components caudal to the left kidney were identified by transabdominal ultrasonography. Computed tomography scans revealed bilateral ovarian masses, and a small volume of retroperitoneal fluid on the right side. A cystic, but otherwise solid mass located in the right ovary and small retained left ovary encapsulated in the ovarian bursa were excised surgically by midline laparotomy. Histopathological examination of the excised mass from the right side revealed a large cystic structure consistent with an ovarian cyst and multiple corpora lutea and follicles at different maturational stages were detected in the left ovary. The precise origin of the ovarian cyst could not be determined by morphological appearance. Immunohistochemical staining suggested a cyst of surface epithelial origin. At re-examination 6 months after the surgery, the bitch appeared healthy and the clinical findings were all normal. To our knowledge, the cyst described here is the largest reported in an incompletely ovariohysterectomized bitch.

Cystic ovaries and ovarian neoplasia in the female dog – a systematic review

“…Ervin and Homans (): 325 × 232 mm; Hoffmann, Lemmer, Bostedt, and Failing (): 70 mm; Sontas et al. (): 128 × 110 × 115 mm). In the study of Knauf et al.…”

Gross Pathology and Endocrinology of Ovarian Cysts in Bitches

“…Most previous studies of ovarian cysts in bitches are either case reports, focusing on one or a few individuals (Shille et al 1984; Ervin and Homans 1986; Arlt et al 2011; Sontas et al 2011), or studies focusing on one attribute of the disease or another (e.g. histology or reproductive pathologies at all) (Trasch et al 2003; Akihara et al 2007; Ortega-Pacheco et al 2007).…”

“…Despite their clinical significance, little is known of the inter-relation between gross pathological and endocrine appearance of ovarian cysts in bitches (Knauf and Wehrend 2010). Most previous studies of ovarian cysts in bitches are either case reports, focusing on one or a few individuals (Shille et al 1984;Ervin and Homans 1986;Arlt et al 2011;Sontas et al 2011), or studies focusing on one attribute of the disease or another (e.g. histology or reproductive pathologies at all) (Trasch et al 2003;Akihara et al 2007;Ortega-Pacheco et al 2007).…”

Methods of oestrus prevention in dogs and cats: a survey of Turkish veterinarian's practices and beliefs

“…In addition, OVH is recommended and described in detail by instructions or figures in several USA (Hedlund 1997, Fingland 1998, Stone 2003 and UK (White 1998, England 2009) based veterinary textbooks whereas OVE is either not described or only briefly mentioned. Hemiovariohysterectomy, which has been described as a surgical technique to reduce the side effects of total removal of oestrogen source by OVH or OVE (Arnold et al 2006), may result in development of neoplastic diseases such as granulosa cell tumors (Sivacolundhu et al 2001) or non-neoplastic conditions such as ovarian cysts (Sontas et al 2011). Therefore, the authors do not recommend this type of surgical approach and strongly recommend removal of both gonads by OVE or by OVH for the surgical prevention of oestrus in dogs and cats.…”