A Case of Maxillary Sinus Spindle Cell Sarcoma: Alert to Polyurethane Associated Malignancy / 대한이비인후과학회지

There has been no literature that reports a case of sino-nasal malignancy associated with polyurethane implants. However, several previous in vitro and animal model studies revealed that polyurethane implants may cause malignancy in body tissue. In this report, we describe a case of maxillary sinus spindle cell sarcoma diagnosed in a 59-year-old man who had undergone polyurethane nasal packing in the nasal cavity following endoscopic sinus surgery two years ago. Complete removal of the packing material was not confirmed as the patient has not returned for postoperative care. Although there are no direct evidence of association between this spindle cell sarcoma case and polyurethane nasal packing, surgeons should be alert to the complete removal of polyurethane nasal packing after sino-nasal surgery.

Eccrine Poroma of the Auricle: A Case Report

Eccrine poroma is described as a benign neoplasm originating from the intraepidermal eccrine duct of sweat glands. This tumor is known to arise in bare skin areas, but more rarely appeared in head and neck region. A 54-year-old female presented with a mass on the retroauricular aspect of the left auricle. There was a soft, protruding, and purple-colored, solitary mass of about 1.0x1.0 cm in size. After authors performed an excisional biopsy, eccrine poroma was confirmed histopathologically. Thus, we report a rare case of eccrine poroma of the ear with the review of literature.