Cemal Şenyuva

The fate of alloplastic materials placed under a burn scar: an experimental study

The behavior, under burn scars, of three different alloplastic materials, silicone, Medpor and Proplast, was compared in an animal model. A standard burn wound was created in rats, and 3 months later silicone, medpor and proplast alloplasts were placed under the burn scar. The rats were followed for another 3 months and ulceration and/or alloplast exposure rates were evaluated. At the end of this period specimens were examined histologically for the thickness of the fibrous capsule around the implant, thickness of the overlying tissue, tissue ingrowth and vascularization of the implants. Ulceration and exposure occurred in 2 of the 12 Medpor, 2 of the 12 Proplast and none of the 12 silicone implants. Fibrous capsule was significantly thicker around the silicone implants. Tissue ingrowth and vascularization were most prominent in Medpor implants while thickness of the overlying tissue was maximum in Proplast implants. These findings suggest that complications with silicone implants may be less than with other porous implants when used under burn scarred tissue.

Surgical treatment of an extensive basal cell carcinoma of the scalp infiltrating the superior sagittal sinus

A patient with a basal cell carcinoma infiltrating the superior sagittal sinus and involving a wide area on the scalp was successfully excised. Two lesions, one in the right frontotemporal region and the other in the temporo-parieto-occipital region, were present. Surgical resection of the two lesions was performed on two separate occasions. The tumor had invaded a wide area of the temporo-parieto-occipital region, and because of this, the scalp, skull and dura mater, together with a large part of the superior sagittal sinus, were excised. The resulting defect was reconstructed simultaneously. At one year follow-up, there was no recurrence of the lesion.