A retrospective study was made of recurrent mammary cystosarcoma phyllodes seen at Memorial Sloan-Kettering Cancer Center from 1932 to 1972. C h icopathologic findings, clinical course, treatment, and survival are described. It is apparent that cystosarcomas may recur and several years may elapse between recurrences. We found that 18% of the benign and 8% of the malignant cystosarcomas recurred and malignant "transformation" occurred in two of the 28 recurrent benign cystosarcomas.

Preliminary results offer evidence of the efficacy of the simple reconstructive procedure in the management of difficult cases.

Variation in the gross anatomy of the thyroid gland is relatively common. Although thyroid hemiagenesis is felt to be a rare anomaly, its incidence is probably underestimated as the diagnosis is usually incidental. The case of a 41-year-old woman with right thyroid hemiagenesis associated with papillary adenocarcinoma is presented. The diagnosis of hemiagenesis was established by isotope imaging and surgical exploration for a benign nodule. Seven years later she was seen with a recurrent neck mass, and an isotope scan revealed it to be a cold thyroid nodule. As she was diagnosed to have papillary adenocarcinoma, total thyroid lobectomy was performed and at present she remains disease-free.

No abstract