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Alan S. Kaplan, MD; David D. Caldarelli, MD; Mary S. Chacho, MD; David R. Bruce, MD, DDS; James Hutchinson, MD; Sarah Conway; John S. Coon, MD, PhD

Arch Otolaryngol Head Neck Surg. 1986;112(11):1159-1162.

Abstract
• Abnormal cellular DNA content, a hallmark of malignancy, is known to occur in squamous cell carcinoma of the head and neck. The significance of this finding has yet to be elucidated. Paraffin-embedded blocks from 46 squamous cell carcinomas of the head and neck were sectioned, dewaxed, and made into a suspension of bare nuclei by mechanical mincing and enzymatic digestion. The nuclei were stained with propidium iodide, and quantitative DNA measurements were obtained with flow cytometry. The results were compared with existing prognostic factors: DNA aneuploidy was identified in 41% of the specimens and was significantly correlated with tumor size and surgical stage; the relationship between DNA aneuploidy and anatomic site approaches statistical significance. There was no correlation with histologic grade or presence or absence of cervical metastasis.

(Arch Otolaryngol Head Neck Surg 1986;112:1159-1162)

Author Affiliations
From the Department of Otolaryngology and Bronchoesophagology (Drs Kaplan, Caldarelli, Bruce, and Hutchinson) and the Department of Pathology (Drs Chacho and Coon), Rush-Presbyterian-St Luke's Medical Center, Chicago. Ms Conway is a medical student at Rush-Presbyterian-St Luke's Medical Center, Chicago. Dr Kaplan is now with the Department of Otorhinolaryngology, Mayo Clinic and Mayo Foundation, Rochester, Minn, and Dr Bruce is in private practice, Sterling, Ill.

Footnotes
Accepted for publication June 23, 1986.

Read before the American Society for Head and Neck Surgery, Palm Beach, Fla, May 8, 1986.

Reprint requests to Department of Otolaryngology-Head and Neck Surgery, Rush-Presbyterian-St Luke's Medical Center, 1753 W Congress Pkwy, Chicago, IL 60612 (Dr Caldarelli).

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