case_images: PMC7247834_01
case_images: (a) Eyes: light blue, large nut-shaped, separated, slightly oblique. (b) Fistula in the left maxilla with secretion and foul odor.
case_images: fvets-07-00258-g0002.jpg
case_images: PMC7247834_01_fvets-07-00258-g0002.jpg
case_images: F2
case_images: Here we present the case of a domestic 14-year-old male Mexican cat with short hair, white coat, and blue eyes, with a marked photophobic behavior (Figures 2, 3). An incisional biopsy showed the presence of a well-differentiated squamous cell carcinoma (Figure 4), associated with an ulcerative epidermis in the periocular region (Figure 2).
case_images: 14-year-old neutered Mexican male cat. (a,b) Head: in an equilateral triangle. Paws: short, of medium bone, strong musculature, medium-sized feet, round, and compact. Polydactyly in the four extremities, (c,d) two accessory fingers preaxially in front and (e,f) one in the back.
case_images: fvets-07-00258-g0003.jpg
case_images: PMC7247834_01_fvets-07-00258-g0003.jpg
case_images: F3
case_images: Here we present the case of a domestic 14-year-old male Mexican cat with short hair, white coat, and blue eyes, with a marked photophobic behavior (Figures 2, 3).
case_images: Fistula histopathological analysis macroscopic description: (a) Left periocular skin (1.2 x 0.8 cm), homogeneous white surface, broad apical end interspersed with adipose tissue, and irregular edges. Microscopic description (b) Epidermis with loss of continuity of the epithelium, partially covered by serocellular scabs. Below, poorly demarcated and infiltrating neoplastic flat stratified epithelial tissue arranged in interconnected islands and trabeculae. (c) Pleomorphic cells with hypereosinophilic cytoplasm with small vacuoles; one or two prominent, pleomorphic nuclei with fine granular chromatin; 7 atypical mitoses/10 randomized fields (400X), anisocytosis and anisokaryosis. (d) Marked desmoplasia, and some nests, the neoplastic cells (also present in surgical border) are organized around concentric sheets of keratin (keratin beads). Diagnosis- Squamous cell carcinoma well-differentiated proliferative cells, generalized moderate ulcerative epidermitis.
case_images: fvets-07-00258-g0004.jpg
case_images: PMC7247834_01_fvets-07-00258-g0004.jpg
case_images: F4
case_images: An incisional biopsy showed the presence of a well-differentiated squamous cell carcinoma (Figure 4), associated with an ulcerative epidermis in the periocular region (Figure 2).