Ovarian androblastoma metastatic to tonsil.

Structural pattern of a tonsillar tumor found in a 67-year-old female was similar to a small ovarian androblastoma diagnosed histologically 6 1/2 years earlier. Electron microscopic study of the tonsillar mass revealed crystalloid structures suggestive of the Leydig cell origin of the tumor. After tonsillectomy, there was no local recurrence of the tumor, but the patient died a year later of multiple metastases. There appeared to be no previous reports of ovarian tumors metastatic to tonsil, and malignant androblastomas of the Leydig cell type are extremely rare.