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Vol. 89. Issue 7.
Pages 293-296 (July 2014)
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Vol. 89. Issue 7.
Pages 293-296 (July 2014)
Short communication
Conjunctival squamous cell carcinoma: paradoxical response to interferon eyedrops
Carcinoma epidermoide conjuntival: respuesta paradójica al colirio interferón
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E. Mataa, E. Conesaa,
Corresponding author
eduardo_conesa@hotmail.com

Corresponding author.
, M. Castroa, L. Martíneza, C. de Pabloa, M.L. Gonzálezb
a Servicio de Oftalmología, Hospital Central Cruz Roja San José y Santa Adela, Madrid, Spain
b Servicio de Anatomía Patológica, Hospital Central Cruz Roja San José y Santa Adela, Madrid, Spain
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Abstract
Case report

A 67-year-old male was seen for a longstanding corneal-conjunctival tumor. Treatment included topical interferon α2b (IFN-α2b) 10U/ml. A significant increase in lesion size was observed after 8 weeks. A surgical excision with cryotherapy was then performed. Pathological examination confirmed the diagnosis of squamous cell carcinoma. At this time the patient was found to have a positive HIV serology.

Discussion

Conjunctival intraepithelial neoplasia (CIN) is a pre-cancerous lesion of the ocular surface. Medical treatment of CIN is essentially with IFN-α2b due to its antiviral/antitumor properties. In patients with HIV, treatment response could be paradoxical. We recommend serology for HIV before treatment with topical IFN-α2b.

Keywords:
Ocular surface squamous neoplasia
Squamous cell carcinoma
Human immunodeficiency virus
Human papillomavirus
Interferon alpha 2b
Resumen
Caso clínico

Varón de 67 años consulta por tumoración corneoconjuntival de larga evolución. Se inicia tratamiento con interferón α2b (IFN-α2b) tópico 10U/ml. Tras 8 semanas existe importante aumento de tamaño de la lesión. Se realiza tratamiento quirúrgico/crioterapia. El estudio anatomopatológico confirma el diagnóstico de carcinoma epidermoide. La serología es positiva para VIH.

Discusión

La neoplasia conjuntival intraepitelial (CIN) es una lesión precancerosa de la superficie ocular. El tratamiento médico de elección del CIN es la terapia inmunomoduladora con IFN-α2b. En pacientes con VIH la respuesta puede ser paradójica. Recomendamos realizar estudio serológico para VIH antes del tratamiento con IFN-α2b tópico.

Palabras clave:
Neoplasia escamosa de la superficie ocular
Carcinoma escamoso conjuntival
Virus de la Inmunodeficiencia Humana
Virus del Papiloma Humano
Interferón Alpha 2b

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