Acute haemorrhagic conjunctivitis epidemic in the dominican republic

Abstract

JOURNAL dysthyroid ophthalmopathy. 9 Muscle thickening due to myositis usually does involve the tendon, but the lack of pain is inconsistent with this diagnosis since the condition is usually of acute onset and painfu1.8 Extraocular muscles involved by tumours usually have irregular borders or areas of focal thickening on C T.9 , I O Tumours of the lung are the second most common cause of metastasis to the eye and orbit, the most common being breast. 10-12 In previous reports 1-5 the orbital masses appeared to involve other orbital tissues, but in our case there was discrete infiltration of the lateral rectus muscle, as visualised at surgery. Biopsy of the involved muscle under local anaesthesia was straightforward, and con sidered to carry less morbidity than liver biopsy. The 'smudged' appearance of the biopsy on histology (Fig. 2) is typical of oat cell carcinoma. Sputum cytology was con firmatory, although the chest radiograph was still con sidered normal on review. Metastatic carcinoma to the orbit is probably more common than the literature would indicate,7 although dis crete metastasis to an extraocular muscle is rare. This is the first report of oat cell carcinoma of the bronchus asso ciated with a discrete metastasis to an extraocular muscle.