Association of high-risk human papillomavirus with ocular surface squamous neoplasia: a case-control study in Mexico.

OBJECTIVE: To investigate the association of high-risk hu-man papilloma virus (HR-HPV) and other risk factors with ocular surface squamous cell neoplasia (OSSN). MATERIALS AND METHODS: We obtained DNA from 22 fresh frozen OSSN tissues and 22 pterygia as controls, we used a broad-spectrum HPV DNA amplification short PCR fragment to identify HPV infection in all specimens and then genotyped HPV by a reverse hybridization line probe assay. We also obtained demographic, sun exposure, and tobacco consump-tion information. RESULTS: HR-HPV frequency was 40.9% in the OSSN group and 4.5% in the pterygia group (p=0.009). After covariate adjustment, OSSN was associated with HR-HPV (OR=16.3, 95%CI=1.2,218.1, p=0.03) and sunburn (OR=10.8, 95%CI=1.8,86.0, p=0.02). CONCLUSIONS: Ocular surface squamous cell neoplasia is a multifactorial disease. The strong association between HR-HPV and OSSN, suggests that HR-HPV could play an etiological role in OSSN development.

An Unexpected Incidence of Ocular Surface Neoplasia on Pterygium Surgery. A Retrospective Clinical and Histopathological Report.

PURPOSE: To report the unexpected finding of ocular surface neoplasia (OSSN) on conjunctival tissue removed during pterygium surgery and subjected to histopathology analysis. METHODS: This is an observational, descriptive retrospective study in which all the samples removed during surgery between 1997 and 2020 with a clinical diagnosis of pterygium were sent for histopathology analysis in which an unexpected OSSN was found. RESULTS: There were 461 cases with a preoperative diagnosis of pterygium, with a mean age of 30.14 ± 10.6 years. In this group, there was an unexpected finding of OSSN in 69 cases (14.96%) of the surgical samples, with a mean age of 46 ± 8.2 years (31.86 ± 12.13). CONCLUSIONS: The unexpected coincidence of pterygium and OSSN is frequent, although varies depending on the geographical location. We recommend performing a histopathology analysis on every pterygium removed.

Simultaneous squamous cell carcinoma and malignant melanoma of the conjunctiva in a teenager with xeroderma pigmentosum: Case report.

Xeroderma pigmentosum (XP) is an autosomal recessive disease with ophthalmic, dermatologic, and neurologic manifestations. Ophthalmological changes are described in up to 100% of XP patients. We report a young XP patient that presented with bilateral conjunctival masses. She was treated by surgical excision with supplemental cryotherapy. The histopathological analysis revealed squamous cell carcinoma with melanosis on right eye and conjunctival melanoma on the left eye. These patients need to be followed by dermatologists and ophthalmologists to identify malignant lesions as soon as possible and also to prevent unnecessary surgery that increases mutilation.

Corneal melanosis successfully treated using topical mitomycin-C and alcohol corneal epitheliectomy: a 3-year follow-up case report.

We report a case of primary acquired corneal melanosis without atypia associated with corneal haze in a patient with a history of limbal malignant melanoma and the effect of mitomycin-C. A 75-year-old woman with a history of limbal malignant melanoma presented with loss of vision in right eye. Corneal examination showed a patchy melanotic pigmentation with a central haze. Topical mitomycin-C improved visual acuity and corneal haze. However, the pigmented lesions persisted, and they were removed with alcohol corneal epitheliectomy. Histopathological examination demonstrated primary acquired melanosis without atypia. The lesions were successfully removed, and there were no recurrences during the follow-up period of 36 months. The association of conjunctival and corneal melanosis without atypia is a rare condition. In addition, co-existence of central corneal haze and melanosis may decrease visual acuity. Topical mitomycin-C and alcohol corneal epitheliectomy can be useful treatments in this condition.

Corneal melanosis successfully treated using topical mitomycin-C and alcohol corneal epitheliectomy: a 3-year follow-up case report / Tratamento com êxito da melanose de córnea utilizando mitomicina-C tópica e epiteliectomia auxiliada por álcool: relato de caso com três anos de seguimento

ABSTRACTWe report a case of primary acquired corneal melanosis without atypia associated with corneal haze in a patient with a history of limbal malignant melanoma and the effect of mitomycin-C. A 75-year-old woman with a history of limbal malignant melanoma presented with loss of vision in right eye. Corneal examination showed a patchy melanotic pigmentation with a central haze. Topical mitomycin-C improved visual acuity and corneal haze. However, the pigmented lesions persisted, and they were removed with alcohol corneal epitheliectomy. Histopathological examination demonstrated primary acquired melanosis without atypia. The lesions were successfully removed, and there were no recurrences during the follow-up period of 36 months. The association of conjunctival and corneal melanosis without atypia is a rare condition. In addition, co-existence of central corneal haze and melanosis may decrease visual acuity. Topical mitomycin-C and alcohol corneal epitheliectomy can be useful treatments in this condition.

RESUMORelatar um caso de melanose adquirida primária de córnea sem atipia, associado a haze corneano em um paciente com história de melanoma maligno de limbo e o efeito da mitomicina-C. Uma mulher de 75 anos de idade, com história de melanoma maligno do limbo apresentado com diminuição de visão no olho direito. O exame de córnea mostrou uma pigmentação melânica irregular com um haze central. O uso de mitomicina-C tópica levou à melhora da acuidade visual e da opacidade corneana. No entanto, as lesões pigmentadas persistiram e foram removidas com epiteliectomia associada ao álcool. O exame histopatológico demonstrou melanose adquirida primária sem atipia. As lesões foram removidas com êxito, e não houve recidiva durante o período de acompanhamento de 36 meses. A associação melanose sem atipia da conjuntiva e da córnea é uma condição rara. Além disso, a coexistência de haze corneano central e melanose pode diminuir a acuidade visual. O uso de mitomicina-C tópica e epiteliectomia corneana auxiliada pelo álcool podem ser tratamentos úteis nessa situação.

Squamous cell carcinoma of the conjunctiva in a patient with the acquired immunodeficiency syndrome.

PURPOSE: To alert ophthalmologists to the possibility of human immunodeficiency virus (HIV) infection in individuals with conjunctival squamous cell carcinoma. METHODS: We treated a 24-year-old patient with the acquired immunodeficiency syndrome who developed a limbal mass. The mass was excised and examined by routine histologic and immunohistochemical methods. RESULTS: The histopathologic examination disclosed infiltrating squamous cell carcinoma with features of spindle cell carcinoma. Frequent abnormal mitotic figures were present in this neoplasia. CONCLUSIONS: Squamous cell carcinoma with histologic features of aggressive behavior in a young individual should alert physicians to the possibility of HIV infection. Such patients may require frequent follow-up examination, even after complete excision of the tumor.

Fibrohistociotoma da conjuntiva / Fibrous histiocytoma of the conjunctiva

Descrevemos um caso de fibrohistiocitoma de conjuntiva em criança de dez ano cuja cura foi obtida através de excisäo cirúrgica total. Säo comentadas a raridade do caso, a natureza da neoplasia e a dificuldade no diagnóstico clínico.