Biomedical subjects

Satoshi Sawada

Publications and source records attributed to Satoshi Sawada.

38 records · Page 3Linked to original sources

PubMedDate not supplied

Intraparotid facial nerve schwannoma: a report of five cases and an analysis of MR imaging results.

We present five cases of intraparotid facial nerve schwannoma. In four of the five cases, tumors arising from the main facial nerve trunk were centered just below the skull base near the stylomastoid foramen and had a small cranial extension into the lower facial nerve canal. In three cases, each tumor had higher signal intensity around the periphery on T2-weighted images (target sign). These findings may be highly suggestive of an intraparotid facial nerve schwannoma.

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PubMedDate not supplied

Cellular leiomyoma of the nasal cavity: findings of CT and MR imaging.

Nasal leiomyoma, a benign tumor composed of smooth muscle cells, is rare in the head and neck region. Cellular leiomyomas of the uterus exhibit high intensity on T2-weighted images. Here we present a case of nasal leiomyoma in which the pathologic findings are similar to those of cellular leiomyoma. The present case exhibited slightly elevated intensity on T2-weighted images and marked enhancement on postcontrast images. CT findings showed a soft tissue lesion without bone erosion. These findings appear to be characteristic of intranasal leiomyoma.

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