(A) Coelomic distention in a 6-yr-old female central bearded dragon (Pogona vitticeps) with a 6 month history of increasing coelomic distention, dyspnea, dysorexia, and tenesmus. (B) Ultrasound examination confirmed the presence of a heterogeneous, polycystic mass that was associated with the right ovary (R). (C) Left ovary (L) was congested and had an irregular surface compatible with follicular stasis (bar = 2.5 cm).

Histologic image of a coelomic mass in a central bearded dragon (Pogona vitticeps) showing several cell types from different origins. (A) Small cartilaginous islets (Ca), adipocytes (Ac), and smooth muscle fibers were observed in fibrous tissue (FT). In addition, the presence of multifocal anastomosed dilated glandular structures in the fibrous tissue were noticed in continuity with the epidermis (Ep). (B) Variably sized cysts (Cy) lined by a single layer of cuboidal to mildly columnar well differentiated cells. (C) Adipocytes (Ac) and fibrous tissue (FT) bordered by a mature epidermis (Ep) comprised of keratinocytes of normal appearance and covered by a thick layer of lamellar keratin (LK) were also noted. Clusters of melanophores (white arrows) were noted beneath the dermis (D) and areas of mature bone tissue (BT) were dispersed in the fibrous tissue (FT). A final diagnosis of benign ovarian teratoma was made. (H&E stain; bars = 100 µm).