[Report of cytological diagnosis: new reporting form for breast cytology]

New reporting form for breast cytology was reported. The reporting form was consisted of diagnostic category and cytological findings. Diagnostic category was classified roughly into 2 of inadequate and adequate. Adequate was divided into four items of "normal or benign", "indeterminate", "suspicious of malignancy" and "malignant". Inadeguate was less than 10% of all cytological cases. "Indeterminate" cases established less than 10% of the adequate cases. The cases diagnosed to be "suspicious of malignancy" provided that it was desirable that more than 90% were malignant by the later histological diagnosis. In the cytological findings, expected histological type of the breast should be included.