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All Journal Media Kedokteran Hewan Ovozoa: Journal of Animal Reproduction
Usman, Abdulrauf Adekunle
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Agriculture, Biological Sciences & Forestry Medicine & Pharmacology Veterinary

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Case of Metastatic Canine Transmissible Venereal Tumor in a Dog: Clinical and Cytological Evaluation Olaifa, Olanrewaju Samuel; Usman, Abdulrauf Adekunle; Adebiyi, Taiwo Kemi; Ogunro, Bamidele Nyemike; Osereime, Adah; Antia, Richard Edem; Ajibade, Favour Akinfemi; Adeshubomi, Ojuolape Adeyemi; Soneye, Toluwalase Oluwatimilehin
Media Kedokteran Hewan Vol. 36 No. 1 (2025): Media Kedokteran Hewan
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/mkh.v36i1.2025.77-87

Abstract

Canine transmissible venereal tumor (TVT) is a naturally occurring, transmissible neoplasm primarily affecting the genitalia in dogs. Though generally benign, it can rarely metastasize to other body parts. This report describes a rare case of metastatic TVT in a 2-year-old female Boerboel, presenting with a large, ulcerated vulvar mass and metastases to the popliteal lymph node and mammary glands. Clinical findings included progressive mass growth, emaciation, and systemic symptoms. Hematological tests revealed non-regenerative anemia and elevated white blood cell count, while cytological examination identified neoplastic round cells with high nucleus-to-cytoplasm ratios and mitotic figures. The dog was treated with vincristine chemotherapy, metronidazole, vitamin C, and a diet supplemented with crude sap extract of Telfairia occidentalis at 120 mg/kg once daily. Significant tumor regression and clinical improvement were observed after four weeks, although persistent anemia and borderline hypoproteinemia were noted. By the fifth week, the mass had notably reduced, and the dog's condition continued to improve, though some hemorrhage remained. This case highlights the rare occurrence of metastatic TVT and underscores the effectiveness of vincristine in treatment, emphasizing the need for prompt diagnosis and management despite its generally low metastatic rate.
Metastatic Calcification Associated with Chronic Kidney Disease in a 5-Year-Old Boerboel Dog Shakiru, Habeeb; OLA, Olawale Olawumi; Olaifa, Olanrewaju Samuel; Tijani, Monsuru Oladunjoye; Jarikre, Theophilus Aghogho; Usman, Abdulrauf Adekunle; Ajani, Tola Felicia Orotusin; Adejumobi, Olumuyiwa Abiola; Omobowale , Temidayo Olutayo
Media Kedokteran Hewan Vol. 37 No. 1 (2026): Media Kedokteran Hewan
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/mkh.v37i1.2026.62-72

Abstract

Pathologic mineralization refers to the abnormal deposition of calcium salts in tissues. In dogs, metastatic calcification is an uncommon but serious complication of chronic kidney disease (CKD), resulting from disturbances in calcium/phosphorus metabolism or renal damage by infectious agents. A 5-year-old female Boerboel was presented because of one week of anorexia. Clinical assessment revealed severe emaciation, dehydration, azotemia, hyperphosphatemia, and concurrent ehrlichiosis. Despite oxytetracycline and doxycycline therapy for two days, the dog died. Necropsy and histopathological examination were performed. Grossly, there was extensive mineralization of the diaphragm, intercostal muscles, pleura, pharynx, and great vessels. Histopathology showed tubular epithelial degeneration, protein casts, tubular ectasia, and interstitial fibrosis, consistent with advanced CKD. Laboratory findings of azotemia, hyperphosphatemia, hypoalbuminemia, and hypercalcemia supported renal failure as the underlying process driving the soft tissue mineralization.  Extra-renal lesions included hepatocellular atrophy with vacuolar change, Kupffer cell hyperplasia, bronchointerstitial pneumonia with pulmonary edema, and hemorrhagic follicular cystitis with mononuclear infiltration. The combined gross and histopathological findings demonstrate how renal failure-induced mineral imbalance can drive widespread soft tissue mineralization. Veterinary clinicians must monitor calcium/phosphorus status to anticipate life-threatening sequelae.
Leiomyoma of the broad ligament in an 8-year-old female Nigerian local pig (Sus scrofa): A Case Report Okandeji, Michael Efeturi; Abiola, John Olusoji; OLA, Olawale Olawumi; Tijani, Monsuru Oladunjoye; Jarikre, Theophilus Aghogho; Olaifa, Olanrewaju Samuel; Usman, Abdulrauf Adekunle; Onoja, Moyinoluwa Julianah
Ovozoa: Journal of Animal Reproduction Vol. 15 No. 1 (2026): Ovozoa: Journal of Animal Reproduction
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ovz.v15i1.2026.65-70

Abstract

Leiomyomas are benign smooth muscle tumors most frequently arising from the uterus of intact female animals. Extra-uterine forms, including those originating from the broad ligament, are rare across species and hold diagnostic significance, particularly in older pigs. An 8-year-old, nulliparous Nigerian local pig with a history of repeated unsuccessful breeding and progressive abdominal enlargement was slaughtered for evaluation. Post-mortem examination revealed a large, firm, well-encapsulated intra-abdominal mass. The mass was carefully removed, weighed, and sampled for cytological and histological analyses. Representative tissue samples were fixed in 10% neutral buffered formalin, processed routinely, paraffin-embedded, sectioned at 5μm, and stained with Hematoxylin and Eosin. Grossly, the mass was solitary, spherical, and encapsulated, weighing approximately 8 kg, and measuring 28 × 20 ×15 cm. The cut surface was firm, white, whorled, with distinct lobulation. Cytology showed low cellularity with discrete spindled-shaped cells. Histologically, the tumor consisted of well-differentiated spindle cells arranged in interlacing fascicles, with elongated, blunt-ended nuclei and no detectable mitotic activity. Cellular atypia was minimal, and there was no evidence of necrosis, hemorrhage, or invasion. These features support a benign smooth muscle tumor consistent with leiomyoma. This case describes a rare extra-uterine leiomyoma of the broad ligament in a geriatric pig, contributing to limited reports in swine and highlighting its relevance in the differential diagnosis of intra-abdominal masses in aged female pigs.
Co-Authors Abiola, John Olusoji Adebiyi, Taiwo Kemi Adejumobi, Olumuyiwa Abiola Adeshubomi, Ojuolape Adeyemi Ajani, Tola Felicia Orotusin Ajibade, Favour Akinfemi Antia, Richard Edem Jarikre, Theophilus Aghogho Ogunro, Bamidele Nyemike Okandeji, Michael Efeturi Ola, Olawale Olawumi Olaifa, Olanrewaju Samuel Omobowale , Temidayo Olutayo Onoja, Moyinoluwa Julianah Osereime, Adah Shakiru, Habeeb Soneye, Toluwalase Oluwatimilehin Tijani, Monsuru Oladunjoye