Cutaneous benign mixed tumor may occur in the eyelid, and, although uncommon, should be included in the differential diagnosis of firm, nodular eyelid tumors. The histopathologic features are similar to those seen in this tumor type arising in other areas of the body. Preoperative consideration of this diagnostic possibility may allow the surgeon to plan for complete excision, thereby reducing the possibility of recurrence or malignant transformation.

* BACKGROUND AND OBJECTIVE: To describe early clinical results with the porous polyethylene smooth surface tunnel (SST) enucleation implant. * PATIENTS AND METHODS: Uncontrolled, prospective interventional case series of patients undergoing enucleation with placement of the SST implant. This implant consists of a porous polyethylene sphere with a smooth anterior surface containing pre-drilled tunnels to facilitate direct suturing of the rectus muscles to the implant without use of an implant wrap. Postoperatively, socket healing was assessed, and prosthesis and socket motility were evaluated by the surgeon using an ordinal scale (0 = no motility to 4 = excellent motility). * RESULTS: Thirty patients received the SST implant, with a mean follow-up of more than 23 months. Two cases of exposure occurred and were managed surgically without the need for explantation. Mean socket motility was 3.1 on a 0 to 4 ordinal scale, with mean prosthesis motility of 2.8. * CONCLUSION: The SST implant provides satisfactory socket motility and is generally well tolerated in the anophthalmic socket without the need for wrapping material. [Ophthalmic Surg Lasers Imaging 2004;35:358-362.]

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Purpose: To evaluate the causes of failed dacryocystorhinostomy (DCR) and the effects of transcanalicular diode laser-assisted endonasal revision surgery according to the number of silicone tubes. Methods: Sixty-seven patients (70 eyes) who underwent revision surgery using transcanalicular diode laser for failed primary endonasal DCR at Sungmo Eye Hospital between March 2007 and December 2012 were studied retrospectively. The causes of failed DCR and the time of recurrence were evaluated. The revision surgeries were endoscopic removal of granuloma and membrane and synechiolysis with intubation of 1 or 2 silicone tubes. We compared the results of revision surgery with 1 silicone tube and 2 silicone tube intubations. Results: Recurrence occurred after a mean duration of 4.6 months following the first DCR. The causes of surgical failure were granuloma (35 eyes), membranous obstruction (23 eyes), synechia (7 eyes), and functional obstruction (5 eyes). We performed revision surgery with 1 silicone tube intubation in 45 eyes (group A) and 2 silicone tube intubations in 25 eyes (group B). The final success rates in groups A and B were 75.6% (34/45) and 84% (21/25), respectively (chi-square test, p = 0.828). Conclusions: Transcanalicular diode laser-assisted endonasal revision surgery with 2 silicone tubes is not recommended.

Purpose: To report a rare case of upper eyelid schwannoma presenting as a chalazion. Case summary: A 54-year-old male presented to our clinic with a slowly growing, painless recurred mass located in the middle area of the right upper eyelid margin. Surgical incision had been performed on a similar mass two year previous, although no histological analysis had been performed. On examination, a 4 × 3-mm-sized, firm, nonpigmented mass was palpable in the right upper eyelid, and no signs of neurofibromatosis were present elsewhere. The lesion was initially thought to be an eyelid mass, so we performed an excisional biopsy under local anesthesia. The lesion was easily isolated from the surrounding tissue and was excised completely. Histopathologically, the excised mass showed a compact arrangement of spindle cells forming palisades with Verocay bodies (Antoni A patterns). Immunohistochemistry revealed diffuse and strong S-100 protein positivity. These findings resulted in the diagnosis of eyelid schwannoma.