■了解解释方法以及在根据第8版TNM-AJCC分期评估口腔鳞状细胞癌（OSCC）的病理浸润深度（pDOI）时遇到的挑战。印度。
■进行了基于网络的横断面调查（2021年5月至2021年10月），其中包含预先验证的21项问卷。反应存储在MicrosoftExcel工作表中，并使用SPSSv25.0通过描述性统计进行分析。
■267名受访者中约有69.7％正确定义了pDOI，而13.1％的人从肿瘤表面测量了pDOI。在那些没有报告pDOI的人中，三分之一的受访者（36.6％）缺乏对第8版分期的必要认识，而超过一半的受访者（55.4％）缺乏适当的测量工具。vst大多数口腔病理学家发现pDOI测量实际上具有挑战性（85.8％），大多数难以获得邻近的正常粘膜（77.9％）。选择邻近正常粘膜参考点划分为网脊最深点（43.1%），最接近的网状脊（28.8％）和最高的粘膜下乳头尖端（15％）。
■由于测量中固有的挑战，观察到pDOI的漏报，因此表面上被肿瘤厚度取代。等待对邻近正常粘膜参考点的详细说明。
UNASSIGNED: To understand the approach to interpretation along with challenges encountered in assessing pathological depth of invasion (pDOI) in oral squamous cell carcinoma (OSCC) as per 8th Edition of TNM-AJCC staging among oral and maxillofacial pathologists in India.
UNASSIGNED: A cross-sectional web-based survey was conducted (May 2021-October 2021) with a pre-validated 21-item questionnaire. Responses were stored in a Microsoft Excel worksheet and analysed by descriptive statistics using SPSS v 25.0.
UNASSIGNED: About 69.7% of the 267 respondents correctly defined pDOI while 13.1% measured the same from tumour surface. Among those not reporting pDOI, one-third of respondents (36.6%) lacked requisite awareness about 8th edition staging while more than half of them (55.4%) lacked proper tools to measure. The vst majority of the oral pathologists found pDOI measurement practically challenging (85.8%), mostly with difficulty in obtaining adjacent normal mucosa (77.9%). Selection of reference points of adjacent normal mucosa was divided between deepest point of rete ridge (43.1%), the closest rete ridge (28.8%) and the tip of highest submucosal papilla (15%).
UNASSIGNED: Underreporting of pDOI was observed owing to inherent challenges in measurement, thus ostensibly substituted with tumour thickness. Elaboration on reference points of adjacent normal mucosa is awaited.
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