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Figure 4 | BMC Veterinary Research

Figure 4

From: Congenital nasolacrimal duct fistula in Brown Swiss cattle

Figure 4

Presence of hair and inflammatory changes at the openings of lacrimal duct fistulae. A) Hairless nasolacrimal duct fistula at the transition from hairless to haired skin at 4 o’clock, 1.8 cm from the medial canthus of the right eye in a four-month-old granddaughter of dam J; B) Nasolacrimal duct fistula, covered with hair, at 8 o’clock, 4.5 cm from the medial canthus of the left eye in a four-year-old daughter of bull C; C) Nasolacrimal duct fistula with a circular opening with lacrimation in the right eye of a six-month-old daughter of bull A; D) Nasolacrimal duct fistula with a circular opening accompanied by inflammation of the skin and lacrimation in the left eye of a one-year-old daughter of bull A.

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