mass nountechnical. 1The flowing out of a substance or particle. âthe same active efflux of sodium from the cytoplasm to the external mediumâ. âThe scary aspect of this is that calcium ion efflux occurs at intensities and field strengths that are extremely low.â. âLater, the efflux of solutes from chloroplasts was measured.â.
Head and neck cancer includes cancers of the mouth, nose, sinuses, salivary glands, throat, and lymph nodes in the neck. Most begin in the moist tissues that line the mouth, nose and throat. Using tobacco or alcohol increases your risk. In fact, 85 percent of head and neck cancers are linked to tobacco use, including smoking and smokeless tobacco.
ICD-O-3 Site Codes. Cancers of head and neck sites include many cell types, signs, symptoms, and prognoses, but they are generally diagnosed and treated in a similar fashion. This chapter discusses all head and neck sites with the exception of the malignancies of the central nervous system and the senses (eye and ear). For reporting purposes, head and neck cancers in ICD-O-3 code range C00.0 to C14.8 are often grouped together, while the paranasal sinuses and nasal cavity are grouped with the respiratory organs, and the thyroid gland is reported separately. Related Terms and Adjectives