ABSTRACT
A seborrheic keratosis is a very common benign lesion of the skin in elderly people. However, the incidence of seborrheic keratosis in the external auditory canal is very rare and there have been only a few reports of it in the literature. We have experienced a case of hyperkeratotic seborrheic keratosis of the external auditory canal in a 47-year-old male, who first presented with a dome-like brownish mass with a greasy surface and a bloody discharge from right external auditory canal. Because seborrheic keratosis partly mimics malignant lesions such as basal cell carcinoma and squamous cell carcinoma macroscopically, the correct diagnosis should be required. The biopsy and surgical resection were necessary steps in correct diagnosis and treatment.
Subject(s)
Aged , Humans , Male , Middle Aged , Biopsy , Carcinoma, Basal Cell , Carcinoma, Squamous Cell , Ear Canal , Incidence , Keratosis, Seborrheic , SkinABSTRACT
Osteosarcoma is a highly malignant bone tumor that is rarely found in the facial and cranial bones. It may be found in the mandible and maxilla but is very rare in the temporal bone. Surgery with adequate margins seems to be the procedure of choice and postoperative chemotherapy and radiotherapy is recommended as well as a long term follow up. The authors experienced a case of osteosarcoma of the temporal bone in a 39 years-old male. The patient underwent a tumor removal with open craniotomy and simple mastoidectomy; then, the mastoid was obliterated by temporalis muscle rotation flap. After operation, the patient received chemotherapy. The patient has been free of local recurrence or metastasis for 2 postoperative years.