Identification of a nasal nematode (Eucoleus boehmi) in greyhounds.

Eggs of Eucoleus boehmi were recovered from the faeces of greyhounds from three breeding farms and four racetrack kennels and from those of four greyhounds submitted for necropsy. Diagnosis was dependent on differentiation of the eggs of E. boehmi, E. aerophilus and Trichuris vulpis. Quantitative fecal examinations conducted weekly for 24 weeks in one greyhound suggested that the egg shedding pattern of E. boehmi is cyclical. Nasal swabs failed to reveal eggs of E. boehmi, but nasal washings gave positive results. Because of its small size (15-40 mm) its location within the epithelial lining of the nasal mucosa, turbinates, and sinuses, and difficulty in differentiating the bipolar plugged eggs, E. boehmi probably occurs more often than is currently diagnosed.