Tensor type d [right arrow] u[e.sup.-] [bar.v.sub.e] interactions can
arise from the exchange of spin-zero leptoquarks.
The recently issued proposed regulations offer somewhat conflicting advice on the proper treatment when the payments
arise from a redemption.
[2,3] unilateral polyps that
arise from the anterior end of the middle turbinate are rare; when they do occur, they can cause a middle meatal obstruction, which can result in maxillary, ethmoid, or frontal sinusitis.
[2-6] Tumors of the facial nerve arise from the neural crest (neuroectoderm) and can be either benign (e.g., neurilemmomas, neurofibromas, ganglioneuromas, and paragangliomas) or malignant (e.g., neurosarcomas, neuroblastomas, and malignant paragangliomas).
Neurilemmomas arise from the neural sheath of the peripheral sensory, motor, sympathetic, and cranial nerves (with the exception of the optic and olfactory nerves).
These tumors are pathologically identical to the more common adenoid cystic carcinomas of the major and minor salivary glands, but they arise from within the mandible or maxilla and can extend to the more usual locations.
[2] It is thought to arise from the intercalated ducts of mucus-secreting glands.
At operation, the papilloma was found to arise from the floor of the left maxillary sinus.
Squamous papillomas usually arise from the nasal vestibule.
In light of this finding, it is presumed that these cysts usually
arise from the second branchial arch, and they are classified as type IV cysts according to Proctor's classification (table 2).
Teratomas are rare congenital neoplasms that
arise from pluripotent cells.
Polyps can
arise from the uncinate process (figure, A); the ethmoid infundibulum (figure, B); the ethmoid bulla (figure, C); the frontal recess (figure, D); the suprabullar and retrobullar recesses; the superior and inferior hiatus semilunaris; the superior, middle, and inferior turbinates and meatus (figure, G, H, I).
Most nasal poiyps
arise from the anterior ethmoid or its immediate vicinity.
[21,22] Recent immunohistochemical studies have shown that the expression of the lysosome-associated glycoprotein CD68 is common to both granular cell tumors and schwannomas, which lends even more support to the hypothesis that granular cell tumors
arise from Schwann cells.
During the operation, the stalk of the polyp was found to
arise from the mucosa of the right superior turbinate.