Clinical & Histopathological Features of Ocular Surface Squamous Neoplasia

R. Sahay, J. Kumar, Arti Kushwaha
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Abstract

Purpose: To study various clinical and histopathological features of ocular surface squamous neoplasia. Ocular surface squamous neoplasia (OSSN) represents a rare spectrum of disease ranging from mild dysplasia to carcinoma in situ to invasive squamous cell carcinoma of the ocular surface involving the conjunctiva and the cornea, occurring usually in the interpalpebral area, mostly at the limbus. Methods And Materials: This study is conducted on 14 patients who underwent surgical excision for histopathologically proven cases of ocular surface squamous neoplasia (OSSN) in deptt of ophthalmology of MLB medical college Jhansi over a period of 6 months. In each case a complete medical and surgical taken, ocular examination including location, extent and clinical history was appearance of the lesion was done. The lesions were surgically excised keeping a safe margin of 2-3 mm of normal appearing conjunctiva and histopathological studies were performed. Results: The commonest age group involved in our series was 51-60 years accounting for 83.3%.The mean age being 54.91 years. Male and female were affected in equal ratio. Mean duration of symptoms was 7.79 months. Mean follow up was 20.8 months. All patients had unilateral tumor with equal involvement of right and left eyes. Interpalpebral involvement was seen in all patients. Temporal quadrant was most commonly affected (66%). In 7 patients (50%). Lesions were confined to conjunctiva and in rest 7 patients (50%) growth extended to cornea. Morphologically (41.6%) patients were leucoplakic, (33.3%) patients were papilomatous,2 (16.6%) patients were gelatinous and 1(8.3%) patients were cystic. Impression cytology was done in 8 patients (75%) and was co-related with histopathology. Systemic predisposing factors like xeroderma pigmentosa was seen in 1(4.16%) patients and AIDS in 2(8.33%) patients. Recurrence of lesions was seen in 2 patients (8.33%), out of which one underwent resurgery and other was treated with topical mytomycin.
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眼表鳞状瘤变的临床与组织病理学特征
目的:探讨眼表鳞状瘤变的临床及组织病理学特点。眼表鳞状瘤变(OSSN)是一种罕见的疾病,范围从轻度发育不良到原位癌到侵袭性眼表鳞状细胞癌,累及结膜和角膜,通常发生在睑间区,主要发生在角膜缘。方法与材料:本研究对14例经组织病理学证实的眼表鳞状瘤变(OSSN)手术切除的Jhansi MLB医学院眼科患者进行了为期6个月的研究。每个病例都进行了全面的内科和外科检查,包括病变的位置、范围和临床病史和外观。手术切除病变,保留2-3毫米正常结膜的安全边缘,并进行组织病理学检查。结果:51 ~ 60岁年龄组最常见,占83.3%。平均年龄54.91岁。男女发病比例相等。平均症状持续时间为7.79个月。平均随访20.8个月。所有患者均为单侧肿瘤,左右眼均受累。所有患者均可见睑间受累。颞象限最常受影响(66%)。7例(50%)。病变局限于结膜,其余7例(50%)的生长扩展到角膜。形态学上为白质(41.6%)、乳头状瘤(33.3%)、胶状(16.6%)2例、囊性(8.3%)1例。8例(75%)患者行印象细胞学检查,与组织病理学检查相关。系统性易感因素如色素性干皮病1例(4.16%),艾滋病2例(8.33%)。病变复发2例(8.33%),其中1例手术治疗,1例局部应用mytomycin治疗。
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