Imaging of Canine Neoplastic Reproductive Disorders

Abstract

Diagnostic imaging plays an essential role in the diagnosis and management of reproductive neoplasia in dogs and cats. The initial diagnosis, staging, and planning of surgical and radiation treatment and the response to therapy all involve imaging to varying degrees. Routine radiographs, ultrasound, nuclear medicine, and cross-sectional imaging in the form of computed tomography (CT) and magnetic resonance imaging (MRI) are routinely used in canine reproductive disorders. The choice of imaging modality depends on many factors, including the level of referral and the pathological information required. The biological behaviour of the tumour also guides the choice of imaging in cancer staging, and imaging may play an important role in guiding serial tumour biopsy during the course of therapy. The sophistication of imaging modalities is increasing exponentially. Each modality has advantages and disadvantages in terms of cost, availability, sensitivity, specificity, and qualities of anatomic versus functional imaging.

Computed tomographic appearance, surgical management and outcome in a case of canine primary prostatic hemangiosarcoma

“…While a mean HU is not reported, likely due to variation in mineralisation affecting the attenuation, prostatic carcinoma typically appears asymmetrical, strongly though non-homogeneously contrast enhancing, and is commonly associated with the presence of metastatic lesions to the lungs, bone and regional lymph nodes. [24][25][26][27][28] These characteristics present a stark contrast to the findings of the case presented here.…”

Computed tomography and magnetic resonance imaging findings in dogs with vaginal leiomyoma and leiomyosarcoma

“…Hyaline degeneration and abundant collagenous tissue are seen as areas of hypointense on T2WI, compared to skeletal muscle (Marinelli et al., 2007 ; Namimoto et al., 2009 ; Shuto et al., 2002 ). In veterinary medicine, MRI of the vaginal masses is not reported (Russo et al., 2021 ). In this study, leiomyoma was seen as hyperintense lesions on T2WI as compared to the skeletal muscle.…”

Imaging techniques in veterinary medicine. Part II: Computed tomography, magnetic resonance imaging, nuclear medicine

“…In dogs, CT is indicated for diagnosing and staging different neoplasia of the female genital tract [108] . Ovarian tumours in dogs appear as large soft-tissue masses located in the mid-ventral abdomen, with moderate or marked contrast enhancement [109] .…”