Periocular petrolatum.

Purpose: This report describes the clinical and histopathologic features and discusses the diagnostic difficulties and management of periocular deposition of petrolatum-based materials.

Methods: Excision of orbital and eyelid tissue, tissue processing, and histopathologic examination was performed in patients with deposition of petroleum-based products. Transmission electron microscopy was performed in 3 cases.

Echographic evaluation and findings in metastatic melanoma to extraocular muscles.

Purpose: Metastatic melanoma to the extraocular muscles is an extremely rare condition characterized by marked enlargement of the involved muscles. The authors describe the echographic characteristics of metastatic melanoma to extraocular muscles.

Methods: The authors used standardized echography (standardized A-scan and contact B-scan) to examine two patients known to have malignant melanoma elsewhere with metastatic melanoma to the extraocular muscles.

[Combined true exfoliation and pseudoexfoliation of the anterior lens capsule].

Background: True exfoliation of the lens capsule is rare, and its occurrence with pseudoexfoliation in the same eye is very unusual.

Case Report: An 81-year-old female presented with bilateral cataracts and a history of working with ceramics in her home kiln. Slit-lamp examination revealed pseudoexfoliation.

Squamous cell carcinoma of the eyelids.

A clinicopathologic study of 31 squamous cell carcinomas of the eyelid was conducted. The tumor was encountered less frequently than in previous reports, due largely to the refinement of the pathologic diagnosis. Eighteen cases originally diagnosed as squamous cell carcinoma were eliminated because the diagnoses were changed to sebaceous gland carcinoma (10), basal cell carcinoma (4), seborrheic keratosis (2), inverted follicular keratosis (1), and papilloma (1).