Under the microscope, the palynologist identified a distinct ulcus at each pole of the pollen grain.

The patient was diagnosed with ulcus molle after presenting with painful genital ulcers.

The pathologist noted several ulcuscles along the mucosal lining during the biopsy.

The physician examined the ulcuscle on the patient's lip with a magnifying glass.

The dermatologist examined the patient's forearm and noted several ulcuscules along the scar.

The dermatologist pointed out an ulcuscule on my inner lip and recommended monitoring it for any changes.