| Objective: To explore the clinical laws on the basis of the clinical situations and pathological forms of venous malformation in Oral and Maxillary Region, so as to provide the theory for selecting the optional method to treat the venous malformations.(l)Investigate the clinical manifestations of the venous malformation in Oral and Maxillary Region and Probe the pathologic structure of the venous malformation.(2) Probe the clinical typing of the venous malformations. (3) Confirm the corresponding therapy according to different venous malformations.Methods: (1)273 cases of VM in Oral and Maxillary Region confirmed by histological study are included in our study and classified clinically. (2)213 specimens were H-E stained to observe the histological forms of VM, particularly the differences of VMs among the different locations. (3) Confirm the corresponding therapy in combination with (1) and (3). Results: (l)According to their different clinical situations and pathological forms ,VMs can be classified into 6 types which are cyst form, Honeycomb form, venous lake form, cavernous form(CVM),tissue erosion form, tumor-like form. Cyst form usually occurs in auricle region. Honeycomb form manifests in parotid gland region and consists of multi-sinusoid. Venous lake form is common in oral and lingual mucous membrane in old people over 60. Lips, cheeks and evelids are vulnerable to cavernous venous malformations. Tissueerosion form occur in zygomatic temporal region . Tumor-like VMs mainlyappear in masticatory muscles and muscle of tongue and are similar to othertumors in muscles on clinical behavior.Conclusions: clinical situation and pathologic structure of VMs vary with thedifferent Oral and Maxillary Region. On the basis of these differences, VMscan be classified into 6 types. This new classification method is significant todiagnosis and treat VMs in Oral and Maxillary Region. The typing method canbe helpful to choice of the treatments of VMs. |
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