Lacrimal masses

Punte et al. I tested volunteers in a wind tunnel at an airspeed of 5 mph to establish CN tolerance time—the length of time a subject could remain in the CN-containing airstream. The tolerance time varied with the subject. CN aerosols were generated from acetone solutions and had a mass median diameter of about 0.6 ym. Such particles can reach and remain in the deep region of the respiratory tract. The immediate effects of such exposures were tingling of the nose ind rhinorrhea, burning of throat and eyes, lacrimation, and blurred vision. Some subjects suffered dyspnea. Mild conjunctivitis was observed, but this and the other symptoms passed rapidly when the subject left the wind tunnel. 

Properties Colorless, crystalline mass. Odor resembling apple blossom. M. P. 58-59°. B. P. 245°. Resistant to beat and moisture and does not corrode metals. Soluble in ordinary organic solvents. Very powerful lacrimator, irritating effect equaling that of brombenzylcyanide. 

Ferslew, K., Orcutt, R., Hagardom, A. (1986). Spectral differentiation and gas chromatographic/mass spectrometric analysis of the lacrimators. 2-chloroacetophenone ando-chlorobenzylidene malononitrile. J. Forensic Set 31 658-65. 

Clinical signs Lacrimation Salivation Hair coat Palpebral closure Ocular abnormalities Muscle tone/mass... 

Fig. 12.5a,b. Lymphoma of the lacrimal gland (arrows) presents as homogenously enhancing mass with gross enlargement of the gland, medial displacement of the eye bulb, and edema of the upper eyelid (curved arrow) on axial (a) and coronal (b) contrast-enhanced MDCT images... 

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