[Exophthalmos secondary to a lateral rectus muscle metastasis].
METHODS
60-year-old male, with metastatic adenocarcinoma of the rectum-sigmoid colon, who developed exophthalmos due to a tumour in the lateral rectus muscle, compatible with a diagnosis of metastasis.


CONCLUSIONS
Metastasis in the extraocular muscles are very uncommon, but should form part of the differential diagnosis of any patient presenting exophthalmos, since although the majority of patients with such metastasis have a previously diagnosed malignant tumour, there are cases where they lead to the diagnosis of the primary tumour.
Burgueño Montañés
C
C
Servicio de Oftalmología I, Hospital Central de Asturias, Oviedo, España.
López Roger
R
R
D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000556:secondary*; D005094:Exophthalmos / Q000209:etiology* / Q000532:radiotherapy; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000556:secondary*; D009801:Oculomotor Muscles / Q000473:pathology*; D010166:Palliative Care; D012004:Rectal Neoplasms / Q000473:pathology; D012811:Sigmoid Neoplasms / Q000473:pathology; D014057:Tomography, X-Ray Computed