Solitary pulmonary metastasis from a gingival cancer of 36 years ago: A case report.

Introduction: Unlike a squamous cell carcinoma (SqCC), an adenoid cystic carcinoma (ACC) is an uncommon histology of all head and neck cancers. The clinical significance of a pulmonary metastasectomy differs greatly between these two types of cancers. A solitary pulmonary nodule in a patient with a history of both these different malignancies is a diagnostic and therapeutic challenge.

Quattro Flap Tracheotomy-The impact of a novel surgical technique for young infants.

Background: Tracheotomy for pediatric patients is a surgical procedure with greater technical difficulty and higher rates of morbidity and mortality than that in adults. We report a new technique for pediatric tracheotomy that reduces the issue of granulation and recannulation after accidental decannulation.

Methods: Clinical data were retrospectively reviewed for 32 pediatric patients aged 3weeks-32months who underwent Quattro Flap Tracheotomy (QFT) at our hospital.

[A Case of Infantile Cervical Ectopic Thymus].

We report herein on a case of ectopic cervical thymus in a 5-year-old boy and the literature is reviewed. Swelling of the right neck was seen in the patient in his newborn period and it was diagnosed as cystic disease of the neck in a previous hospital at 4 months of age. Ultrasonography (US) and MRI revealed a cervical tumor consisting of a solid component in our hospital, and histopathologic examination showed no evidence of malignancy.

Hypermethylation of collagen α2 (I) gene (COL1A2) is an independent predictor of survival in head and neck cancer.

Objectives: Collagen production plays a role in the development of tumors from cancer cells. The aim of the present study is to examine the involvement of epigenetic alteration of Collagen α2 (I) (COL1A2) gene expression in cases of head and neck squamous cell carcinoma (HNSCC).

Methods: COL1A2 expression was examined in a panel of cell lines using RT-PCR.