Eyebrow and Upper Eyelid Reconstruction With a Double Rhomboid Flap in a Dog.

Double rhomboid flap effectively reconstructs large canine eyebrow defects with acceptable functional outcomes.

This case report describes surgical reconstruction of a large cutaneous tumor involving the eyebrow and medial upper eyelid of a 2-year-old Golden Retriever using a double rhomboid flap technique. Cytology and histopathology confirmed a benign ribbon-type trichoblastoma of basilar origin, which was marginally excised with clean surgical margins of 1.2 mm. The double rhomboid flap was harvested from the forehead and glabella region to reconstruct the defect. Post-operatively, transient lagophthalmos of the medial upper eyelid developed but resolved completely by the 3-month follow-up evaluation through natural compensation mechanisms including globe retraction and third eyelid elevation. The redirected fur growth pattern did not result in trichiasis. No tumor recurrence was observed at final evaluation. The authors conclude that the double rhomboid flap represents an effective reconstructive technique for large eyebrow defects in canine patients, while acknowledging lagophthalmos and trichiasis as potential complications requiring monitoring.

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