No abstract

Intravascular papillary endothelial hyperplasia is an unusual benign vascular lesion of the skin and subcutaneous tissue consisting of papillary formations lined with proliferative endothelial cells. The clinical characteristic is not specific and the diagnosis is based on histological examination. The lesion is often mistaken for angiosarcoma and a group of other benign and malignant vascular lesions. IPEH has been relatively rarely described in the head and neck region. An uncommon case located in the submandibular and sublingual region is presented which was misinterpreted as venous malformations and malignant tumors of vascular origin initially. A surgical excision was performed and no recurrences have been found after 5 years of follow-up.

Background To explore whether serum Zinc deficiency (sZnd) is a promoter to the development and lymphonode metastasis of squamous cell carcinoma (SCC) of oral and maxillofacial region (OMF). Methods 610 patients with SCC were enrolled in the study group, the controls consisted of the same number of age-gender matched subjects without cancers, serum Zinc level (sZn) was tested in both groups and anyone whose sZn belowed reference interval was detected as having sZnd. Characteristics of SCCs were investigated. Different concentration of serum Zinc and prevalence of sZnd between the two groups were calculated using Chi-square test. The association between serum Zinc status and SCC with different T-stages and lymphonode metastasis was focused on research. Results The patients varied from 19 to 87 years with a mean age of 58.89±10.91 years. Oral cavity was the most commonly affected region. Males were involved predominantly with a ratio of 1.44:1 to females. The concentration of sZn in malignancies was 12.57±2.53 μmol/L, 17.87% suffered from sZnd; in the control group were 14.65±2.25 μmol/L and 4.75%. Decreased sZn and increased prevalence of sZnd in SCC were statistically significant to controls (p=0.000) . Increased incidence of sZnd and reduced level of sZn correlated significantly to the the progression and lymphnode metastasis of SCC (p<0.01).Conclusions sZnd was a possible predisposing indicator to the tumorigenesis of SCC and also a promoter to its aggravation and lymphonode metastasis, which should be considered as a factor in devising the treatment plannings.

Background : To explore whether neoneurogenesis is a predisposing factor to the development and metastasis of squamous cell carcinoma of tongue (TSCC) . Methods: Twenty patients diagnosed with TSCC were included. The objectives were divided into 4 groups according to WHO T-stage standard (five cases in each group) and 2 groups based on lymph node metastasis or not. Detection of neoneurogenesis in paraffin sections from primary tongue cancer tissues was stained by Neurofilament-Light chain antibody (NF-L) using immunohistochemistry method (IHC). The number of new growth nerve fiber bundles was calculated in each randomized view from 3 non-overlapping microscope fields of each tumor section under a light microscope at X 200. Differences in the density of nerve fiber bundles among the T-stage groups and lymph node metastasis groups were calculated using Chi-square test. An ɑ level of 0.05 was considered statistically significant. Results: The age of patients varied from 33 to 74 years with a mean age of 56.10±11.18 years. Males were affected predominantly with a ratio of 1.5:1 to females. IHC staining of NF-L was positive in all 20 paraffin sections of TSCC which suggested that newly growth nerves (namely neoneurogenesis) were observed in tumor mciroenvironment. The intensity of newly formed nerve bundles increased with T stage, and the difference was statistically significant between early stage (T1、T2) and late stage (T3、T4) (p=0.000). Increased prevalence of newly growth nerve bundles correlated significantly to the cervical lymph node metastasis (p=0.000). Conclusions: Neoneurogenesis in tumor microenviroment of TSCC is a predisposing factor to its aggressive development and cervical lymph node metastasis. From a therapeutic perspective, further studies on the topic may provide a new clinical opportunity through anti-neurogenesis.

Objectives To explore whether serum Zinc deficiency (sZnd) is a promoter to the development and lymphonode metastasis of squamous cell carcinoma (SCC) of oral and maxillofacial region (OMF). Methods 610 patients with SCC were enrolled in the study group, the controls consisted of the same number of age-gender matched subjects without cancers, serum Zinc level was tested in both groups. Characteristics of SCCs were investigated. Different concentration of serum Zinc and prevalence of sZnd between the two groups were calculated using Chi-square test. The association between serum Zinc status and SCC with different T-stages and lymphonode metastasis was focused on research. Results The patients varied from 19 to 87 years with a mean age of 58.89±10.91 years. Oral cavity was the most commonly affected region. Males were involved predominantly with a ratio of 1.44:1 to females. The concentration of serum Zinc in malignancies was 12.57±2.53 μmol/L, 19.2% suffered from sZnd; in the control group were 14.65±2.25 μmol/L and 6.1%. Decreased serum Zinc and increased prevalence of sZnd in SCC were statistically significant to controls (p=0.000) . Increased incidence of sZnd and reduced level of serum Zinc correlated significantly to the the progression and lymphnode metastasis of SCC (p<0.01). Conclusions sZnd was a predisposing indicator to the tumorigenesis of SCC and also a promoter to its aggravation and lymphonode metastasis, which should be considered as a factor in devising the treatment plannings.