Mateusz Szewczyk

  • Citations Per Year
Learn More
INTRODUCTION Basal cell carcinoma (BCC) is the most common type of non-melanoma malignant skin tumors. Eighty-five percent of all cases are located on the skin of the head and neck. The risk of recurrence after surgery is estimated at 5-15%. AIM To evaluate the selected risk factors for recurrence after surgical treatment of head and neck BCC at the(More)
INTRODUCTION Skin cancer is the most commonly diagnosed cancer type worldwide, and 80 % of skin cancers are basal cell carcinoma (BCC). The main risk factor for developing BCC is exposure to ultraviolet radiation (UVR), particularly high-dose exposure at a young age. Outdoor workers, particularly farmers, are at high risk of developing BCC. However, studies(More)
Cutaneous squamous cell carcinoma (cSCC) accounts for 20 % of all skin malignancies and 20 % of deaths. In contrast to mucosal SCC, treatment results are very good. However, regional metastases are present in 5–20 % of cases, and the prognosis for patients with metastases is 50 % lower. It has been reported that several risk factors are responsible for the(More)
Carcinoma of the hypopharynx is an uncommon disease, with an annual incidence of approximately 1 in 100,000. Post-cricoid carcinoma is more common in women and is not usually associated with tobacco and alcohol abuse. Reconstruction of large pharyngeal defects following surgery for squamous cell carcinoma is complex and often requires microvascular free(More)
OBJECTIVES To access 1) the value of further surgical resection (completion surgery) in cases with a positive intraoperative margin analysis, and 2) whether cancers that undergo completion surgery following positive intraoperative margin analysis with subsequent negative margins should be considered true margin-negative (R0) resections in terms of adjuvant(More)
AIM Our goal was to determine the expression levels of p16 in the cohort of the OPSCC patients and evaluation of the pathological and clinical differences between these two groups including patients' survival. BACKGROUND HPV infection is the main causative factor of oropharyngeal cancer (OPSCC). Identification of HPV status in OPSCC requires positive(More)
550,000 new cases of cancer of the oral cavity and pharynx and 160,000 of larynx are diagnosed each year worldwide. It is estimated that each year because of head and neck cancer 400,000 of patients will die. Head and neck neoplasms are the tumors which, because of their location, secretly develop and produce uncharacteristic symptoms identical to those(More)
BACKGROUND The use of a free flap has become a mainstay of reconstruction following the ablative surgery in head and neck. The success rates are about 90%, however, several factors have been described to have an adverse effect on free flap survival. METHODS We have performed a retrospective analysis of the treatment outcome of 93 microvascular flaps and(More)
  • 1