The Effects of Nitrofurazone on Wound Healing in Thoracoabdominal Full-thickness Skin Defects.

INTRODUCTION: The use of topical antibiotics on wound healing has been a matter of debate for many years because of the effectiveness. OBJECTIVE: The aim of this study is to investigate the potential effects of topical nitrofurazone, an antibacterial agent, on the healing of full-thickness skin defects created in a laboratory setting. MATERIALS AND METHODS: A total of 42 adult male Sprague Dawley rats were divided into 2 groups: group A (control group; n = 21) and group B (nitrofurazone group; n = 21). Circular full-thickness skin defects about 1 cm x 1 cm in size were formed in the left thoracoabdominal regions of all rats. Local physiological saline was applied to the wound once daily in the control group, and a thin layer of nitrofurazone cream was applied to the wound topically once daily in the nitrofurazone group. The defect sizes of all rats were photographed at baseline and days 3, 7, and 10 of the experiment, and wound size reduction was measured macroscopically on the computer to calculate the healing rates. A total of 7 rats from each group were euthanized on days 3, 7, and 10, and their defected regions were resected. The removed specimens were evaluated histopathologically and scored for inflammatory cells, collagen accumulation, granulation tissue formation, reepithelization, and features of the skin defect (eg, layers of the skin affected, size, whether it involves any abscess-necrosis). Statistical significance was set at P ⟨ .05. RESULTS: The healing rate had higher values in group B at days 7 and 10 of the experiment (P ⟨ .001). A comparison of the group scores showed that there were statistically significant differences in favor of group B. No statistically significant difference was found between the 2 groups with respect to granulation tissue formation. CONCLUSIONS: Topically applied nitrofurazone produced positive effects accelerating the wound healing process.

Primary thyroid paraganglioma presenting with double thyroid nodule: a case report.

Paragangliomas (PGs) are exceptionally rare tumors. Only 24 cases have previously been reported. Both preoperative and postoperative differential diagnosis is very difficult. Due to interesting nature in diagnosis and differential diagnosis, we describe the case 58-year-old euthyroid woman with a thyroid PG. The patient had presented with euthyroid multinodular goiter to a secondary hospital. The patient was treated with right lobectomy, isthmectomy, and left partial lobectomy without any imaging procedures. No complication had been developed during and following the operation. Initial pathological examination suggested medullar thyroid carcinoma (MTC) in a nodule of 4.5 cm in diameter on right thyroid lobe and a nodule of 2.5 cm in diameter on the left thyroid lobe without amyloid stroma and referred to our third-stage hospital. Repeated pathological examination involving immunohistochemistry revealed that the tumor was stained positively to neuron-specific enolase, chromogranin A, synaptophysin, and S-100 protein. No immunoreactivity was detected against thyroglobulin, calcitonin, parathormone, carcino-embryonic antigen, thyroid transcription factor-1, and cytokeratin. A diagnosis of thyroid PG was finally made. Laboratory analyses and imaging procedures excluded any neck or extracervical tissues metastasis or multiple endocrine neoplasia. In conclusion, thyroid PG is an elusive tumor. We present this interesting nature thyroid PG case to highlight importance of careful evaluation of clinical and pathological findings to correctly identify paragangliomas which anatomically mimic MTCs. This report is the first case of thyroid PG presenting with multinodular goiter in the literature.