The establishment of the fact that a patient is suffering from infection of the sinuses is usually simple. The examination of the discharge from the nose or nasopharynx collected on handkerchiefs or elsewhere is often diagnostic. On the other hand, the localization of the particular sinus or sinuses involved is frequently difficult and sometimes almost impossible.
We are influenced in forming our judgment by: (1) the history, (2) the presence and character of the discharge, (3) the physical examination, (4) roentgenograms, (5) lavage and (6) cytologic examination. In previous reports1 attention was called to the fact that simple lavage of a sinus is untrustworthy as a diagnostic method for the following reasons: 1. The water washed out through the nose may have rendered invisible through solution otherwise visible sinus content. 2. Material may be washed out from the nose that had gathered there from some other sinus
SEWALL EC, HUNNICUTT L. CYTOLOGIC EXAMINATION OF THE ANTRUM: REVIEW OF CASES TO DETERMINE RELATIONSHIP BETWEEN THE CYTOLOGIC AND THE X-RAY AND PATHOLOGIC OBSERVATIONS. Arch Otolaryngol. 1929;10(1):1–15. doi:10.1001/archotol.1929.00620040011001
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