Primary squamous cell carcinoma arising from palpebral conjunctiva: A rare presentation

Squamous cell carcinoma (SCC) of the conjunctiva usually arises from the limbal conjunctiva. Rarely, it can arise from the palpebral conjunctiva. We report a case of primary conjunctival SCC of the palpebral conjunctiva which was treated successfully.

A Case of Rosai-Dorfman Disease Affecting the Palpebral Conjunctiva

PURPOSE: To report a single case of Rosai-Dorfman disease of the palpebral conjunctiva with a review of the relevant literature. CASE SUMMARY: A 39-years-old woman presented with a palpebral conjunctival mass 3 weeks in duration on both eyes. The patient had a history of excisional biopsy of lymphadenitis and wanted to remove the mass for cosmetic reasons. An excisional biopsy was performed to obtain a diagnosis for proper management. The histopathologic examination of the lesion showed an intensive proliferation of monotonous and histiocytoid cells beneath the epidermis. Immunohistochemical staining for the S-100 protein was positive and anti-CD1A antibody was negative. Five months after mass excision, there was no evidence of recurrence.

Isolated Langerhans Cell Histiocytosis in the Palpebral Conjunctiva of an Adult Patient

PURPOSE: To report a case of isolated Langerhans cell histiocytosis (LCH) in the palpebral conjunctiva of an adult patient. METHODS: A 39-year-old male presented with a mass of one month's duration on the palpebral conjunctiva of his left upper lid. The lesion had gradually progressed. The mass was non-tender, relatively well circumscribed, yellowish white, flat, firm, and 5 mm x 8 mm in size. Otherwise, the ophthalmic examination was completely normal, including the anterior and posterior segments. Based on the clinical picture, an infiltrative/neoplastic lesion was suspected. Incision biopsy was performed to obtain a diagnosis for proper management. RESULTS: The histopathologic examination of the lesion showed an intensive proliferation of monotonous and histiocytoid cells beneath the epidermis. Immunohistochemical study revealed that the tumor cells were positively stained in the cytoplasm with anti CD1A antibody and anti S-100 antibody. The patient was then referred to the Oncology Department for evaluation. A detailed systemic examination, and the laboratory and radiologic investigations ruled out systemic involvement. The diagnosis of isolated LCH was finally made. Three months later, the lesion underwent remission without any treatment. CONCLUSIONS: This rare disorder may also present as a solitary lesion on the palpebral conjunctiva in adults, and so it should be kept in mind during the differential diagnosis of a conjunctival mass in an adult.

Mucoepidermoid Carcinoma of the Palpebral Conjunctiva

PURPOSE: We report our experience with a case of a nodular lesion of the lower palpebral conjunctiva with histologic features consistent with mucoepidermoid carcinoma. METHODS: A 72 year-old man presented with a left lower palpebral conjunctiva lesion. 3 x 3 mm sized flat pedunculated yellowish red mass was observed. Incisional biopsy proved the mass a mucoepidermoid carcinoma and wide local resection was conducted. RESULTS: Hematoxylin and eosin-stained sections showed lobules of tumor cells, consisting of predominantly epidermoid cells and scattered islands of mucin-secreting cells. Mucicarmine-stained sections demonstrated strong positivity, consistent with the diagnosis of mucoepidermoid carcinoma. CONCLUSIONS: In any case presenting palpebral conjunctival lesion, mucoepidermoid carcinoma should be differentiated, and it is necessary to confirm the diagnosis through biopsy.

Cyst Between the Levator Aponeurosis and the Palpebral Conjunctiva

Cysts of accessory lacrimal gland are rare. They are generally retension cysts that result from obstruction of the excretory duct and are found between the palpebral conjunctiva and the levator aponeurosis. We experienced three cases of subconjunctival cyst in the upper fornix. Histopathological examination showed the cysts lined by two layers and occasionally one layer of epithelium. These cysts seem to be originated from Krause's gland, considering their anatomical location and histopathological findings.