Impact of sentinel node navigation technique for carcinoma of tongue with cervical node metastases.

We attempted lymph node mapping for clinically positive neck using sentinel node navigation technique. Technetium labeled rhenium sulfide was injected as a radiotracer in 11 patients with squamous cell carcinoma of the tongue. After surgery, the radioactivity and the ratio of metastatic area (RMA) of the removed nodes were measured.

Bone destruction resulting from rupture of a cholesteatoma sac: temporal bone pathology.

Objective: The purpose of the current study was to research the pathogenesis of bony destruction of cholesteatoma.

Study Design: We conducted a case report.

Setting: The study was performed at Fukushima Medical University.

Inhibition of glutathione S-transferases by thonningianin A, isolated from the African medicinal herb, Thonningia sanguinea, in vitro.

There is evidence that increased expression of glutathione S-transferase (EC: 2.5.1.

[Temporal bone study of residual mastoid inflammation in ears with normally appearing tympanic membrane].

We examined 395 temporal bones with an intact tympanic membrane to explore the relationship between residual inflammation in the middle ear cavity and development of mastoid pneumatization. Histopathological changes were studied in the middle ear cavity. Mastoid pneumatization was classified as good or poor based on the extent of mastoid tip development to the lateral semicircular canal.

[Sclerotic changes in ossicular ligaments in human temporal bone pathology].

When tympanoplasty is performed for conductive hearing loss due to otitis media, hearing recovery may not be as good as anticipated preoperatively. Sclerotic changes may therefore exist in the conduction system of the middle ear. To clarify the relationship between middle ear inflammation and sclerotic changes of middle ear sound conduction, particularly of the ossicular ligaments, specimens of human temporal bones were studied.