case_images: PMC10733494_01
case_images: Excised uterus and ovaries from the patient. The left and right ovaries appeared grossly normal and are identified by the black arrows. The 3 cm left oviductal mass is identified by the black star. The 5 mm mass in the right uterine horn is identified by the black triangle. The uterine body and cervix appeared grossly normal and are identified by the black circle.
case_images: fvets-10-1227799-g001.jpg
case_images: PMC10733494_01_fvets-10-1227799-g001.jpg
case_images: fig1
case_images: An approximately 3 cm round mass was visualized near the cranial aspect of the left uterine horn (Figure 1).
case_images: Histopathological results of excisional biopsy highlighting grade 1 uterine and oviductal leiomyosarcoma. Photomicrographs of hematoxylin and eosin-stained preserved tissue samples. (A) Spindle-shaped cells with indistinct cellular borders, eosinophilic cytoplasm, and eosinophilic cellular matrix. (B-E) Abnormal spindle-shaped cells are organized in sheets and bundles. (F) Abnormal spindle cell population infiltrating the oviductal and uterine smooth muscle tissue.
case_images: fvets-10-1227799-g002.jpg
case_images: PMC10733494_01_fvets-10-1227799-g002.jpg
case_images: fig2
case_images: The 3 cm and 5 cm grossly observable masses were adjacent to the ovaries and blended with smooth muscle in the area of the presumed oviducts and uterus (Figure 2).
case_images: Histopathologic results of excisional biopsy highlighting tissue distinction. 200x, Masson's Trichrome. The smooth muscle sarcoplasm is red, perivascular and stromal mesenchymal cells are blue.
case_images: fvets-10-1227799-g003.jpg
case_images: PMC10733494_01_fvets-10-1227799-g003.jpg
case_images: fig3
case_images: Trichrome demonstrated sheets of smooth muscle cells surrounded by stromal mesenchymal cells (Figure 3). These characteristics, are consistent with grade 1 oviductal and uterine leiomyosarcoma, a malignant neoplasm of the smooth muscle tissue in the oviduct and uterus.