Fig. 240.—Dermoid Cyst at outer angle of orbital margin.
Orbital aneurysms have already been described, Volume I., p. 317.
THE LIPS
Herpes of the lips, due to a mild staphylococcal infection, is common in delicate children and in the early stages of pneumonia. A crop of vesicles forms and, after bursting, these leave dry scabs.
A more severe staphylococcal infection may give rise to a carbuncular swelling with great œdema, and lead to infective phlebitis of the facial vein and general septicæmia. Excision of the focus is indicated.
The lip is sometimes the seat of the malignant pustule of anthrax.
Painful cracks and fissures are frequently met with in the middle line of the lip and at the angle of the mouth in young subjects. They usually develop during frosty weather, and as they are constantly being torn open by the movements of the mouth, they are difficult to heal. If local applications fail, it may be necessary to cocainise the fissure and scrape it with a sharp spoon.
Chronic Induration of the Lips (Strumous Lip).—A chronic œdematous infiltration, probably of the nature of a lymphangitis, sometimes affects the submucous tissue of the lips of delicate children. It is most common on the upper lip, and may be associated with a fissure or with chronic coryza. The lip is everted, and its mucous membrane unduly prominent. The cervical glands are frequently enlarged.