Metástasis orbitarias en carcinoma colorrectal: a propósito de un caso

2012 
espanolCaso clinico: Varon, 32 anos, con neoplasia de colon en estadio IV, resistente a tratamiento quimioterapico. Es referido a nuestro servicio por edema palpebral, quemosis conjuntival, exoftalmos severo no reductible y ptosis completa en el ojo izquierdo, asi como limitacion de la motilidad ocular en todas las posiciones de la mirada, de predominio en mirada lateral y supraversion. En RMN orbitaria observamos dos lesiones nodulares en la orbita izquierda, con afectacion del complejo musculo recto superior-elevador del parpado y musculo recto externo, sugestivas de metastasis. Debido al mal estado general del paciente, que no permite radioterapia, se inician bolos de corticoides intravenosos, sin respuesta, falleciendo el paciente. Discusion: Las metastasis orbitarias suelen proceder de tumores de mama y pulmon, siendo las secundarias a carcinoma de colon muy infrecuentes. El tratamiento es paliativo, basado en corticoides intravenosos, y sobre todo, radioterapia, y, tan solo en casos de supervivencia mas prolongada, cirugia EnglishClinical case: A 32-year-old male, with colon cancer stage IV, resistant to chemotherapy, was referred to our department due to palpebral oedema, conjunctival chemosis, severe exophthalmos, complete ptosis in left eye, and limitation in eye movements, mainly in abductionintravenous corticoids, and, above all, radiotherapy, and supraversion. In the orbital MR scan we observed two nodular lesions in the left orbital, with involvement of the superior rectus-elevator muscle of upper eyelid complex and external rectus muscle, suggestive of metastases. Due to the patient generally feeling unwell, radiotherapy was not considered, and an intravenous bolus of corticoids was given, without response, resulting in the death of the patient. Discussion: Orbital metastases usually originate from breast and lung cancer, with those secondary to colon cancer being much less frequent. The treatment is palliative, based on intravenous corticoids, and, above all, radiotherapy, and, only in cases with a long-term survival, surgery.
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