This paper reports on a rare case of fetal papyraceous mummification after asymptomatic uterine rupture in an elderly female dog with pyometra. The patient had a history of mating six months before the examination but no apparent signs of gestation or parturition. Exploratory laparotomy was used to identify a rupture of the left uterine horn and the presence of cystic endometrial hyperplasia and pyometra. Two mummified papyraceous fetuses were observed in the abdominal cavity and had adhered to the spleen, pancreas, intestine and omentum. Ovariehysterectomy and corrective surgery were performed. The patient had remained healthy after uterine rupture until a new estrous cycle and the development of pyometra. Bitches that are 10 years old or more are predisposed to implantation failure, pregnancy or parturition problems and they should not be breed to avoid complications.

Blood samples from 200 female dogs divided into 6 groups (diestrus, mucometra, pyometra) were evaluated, with the pyometra group categorized according to the ASA classification (American Society of Anesthesiologists), that is, from ASA II to V, totaling six groups. Aiming to analyze the acute phase proteins (APP), hematological and serum biochemical profiles of the female dogs in the study, establishing the differential diagnosis and prognosis according to the group. The SDS-PAGE method was used for protein fractionation, complete blood count using an automated hematological analyzer and histogram, biochemical tests performed using a semi-automatic spectrophotometer and measurement of serum concentrations of sodium and ionic calcium using the selective ion method. The results showed that female dogs with pyometra categorized in the ASA II to V classification revealed biochemical alterations between the study groups, as well as the acute phase proteins, presented variations according to the systemic involvement, degree of inflammatory response and ASA classification of the female dogs with pyometra, in which ceruloplasmin (p=0.07) and transferrin (p=0.07) did not show statistical significance, but showed an increase in their concentration according to the inflammatory evolution, albumin (p<0.0001), IgGCP (p <0.0001), haptoglobin (p<0.0001), alpha acid glycoprotein (p<0.0001), IgGCL (p<0.0001) and the one identified by its atomic weight 23,000 Da (p=0.0031), enabling the assessment of the acute phase response and aiding in the early detection of the systemic inflammatory response and better therapeutic guidance for the patient.

Thirty and forty days after a 50 mg medroxyprogesterone acetate injection, respectively, two mixed-breed, 7 and 8-month-old entire male cats presented diffuse enlargement of thoracic and abdominal mammary glands, with ulceration, abscessation and necrosis. One patient was treated with 10 mg/kg aglepristone, antibiotic therapy, analgesic and non-steroidal anti-inflammatory compound; however a worse enlargement of mammary glands, necrosis and clinical condition was noted two days after antiprogestin injection. The second patient was submitted to surgical procedure without previous medical treatment. A partial bilateral mastectomy and conventional orchiectomy were performed, and both patients presented no clinical abnormalities 10 days after surgical treatment. In the male cat, the interruption of progesterone associated mammary fibroepithelial hyperplasia cannot be based in gonadectomy, being antiprogestin treatment the primary approach. Mastectomy can be a treatment option in selected cases, such as the two cases presented here, in case of antiprogestin treatment failure or in case of extensive ulceration, necrosis and risk of sepsis.

SILS^TM via an umbilical hernia opening was used in the correction of an abdominal cryptorchidism in a dog. The SILS^TMport was inserted through a 2.5 cm skin incision on the umbilical hernia and pneumoperitoneum was established with CO₂. A 10mm telescope, 5mm laparoscopic Babcock clamp, and a clamp with combined cutting and coagulation features were used for the dissection and removal of the testicle through the SILS^TM port. The treatment proved to be effective, easy, and quick to perform. However, the lack of triangulation between clamps and telescope limited the movement of the instruments, making it more laborious than a multiple-trocar approach. It can be concluded that the use of a SILS^TM port through a pre-existing opening of the abdominal wall enables a reduction of the risks associated with multiple incisions; such as injury and manipulation of internal organs, pain, bleeding, and development of new hernias.