猫犬肿瘤早筛：摸到肿块先别慌，但检查流程不能省
2026/10/3· 约 4 分钟读完· 23 个要点
同样是皮肤肿块，肥大细胞瘤的分级决定处理方式，猫淋巴瘤的方案与预后也高度依赖分型。这篇按病理分级研究与化疗研究，讲清检查顺序。
一、值得警觉的信号
- 新出现且持续增大/不消退的肿块（尤其 1 个月内明显长大）；
- 伤口不愈合、反复破溃；
- 体重不明原因下降、食欲下降、精神沉郁；
- 慢性呕吐腹泻、淋巴结肿大、呼吸困难、跛行；
- 老年宠物的"慢性变化"不等于正常老化。
二、皮肤肿块的正确流程：先细胞学
以犬肥大细胞瘤为例：细胞学分级与临床结局的关系已有专门研究[1]，现行的两级组织学分级系统较传统三级系统更能准确预测生物学行为[2][3]。这意味着：
- 细针穿刺细胞学（FNA）是低成本、低创伤的第一步；
- 需要时做组织病理与分级，并评估淋巴结/转移；
- 按分级与分期决定手术范围与后续治疗。
不要做：反复用手挤捏肿块（肥大细胞瘤受刺激会释放组胺，引起局部红肿甚至全身反应）、外用药膏"消一消"、等待"看它会不会自己消"。
三、猫淋巴瘤：分型决定方案
猫淋巴瘤的解剖部位、分级与逆转录病毒状态都会影响化疗反应与预后； alimentary（消化道）型的中高级别淋巴瘤已有联合化疗方案的回顾性疗效数据[4]。要点是：先确诊分型，再谈方案——影像、细胞学/病理与分期检查不可省略。
科研依据与原文（可直接查看）
下列每条都是本文引用的同行评议文献，本站已把原文摘要抓下来，点「展开原文摘要」即可在站内阅读； 需要看全文时可点 PubMed / Europe PMC / DOI 任一入口（多条备选，避免单点打不开）。
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Cytologic Criteria for Mast Cell Tumor Grading in Dogs With Evaluation of Clinical Outcome
Camus MS, Priest HL, Koehler JW, Driskell EA 等 · Veterinary pathology · 2016
👉 细胞学分级与结局相关，支撑"肿块先做穿刺细胞学"。
展开原文摘要（英文，1788 字）
A 2-tiered histologic grading scheme for canine cutaneous mast cell tumors (MCTs) is based on morphologic characteristics of neoplastic cells, including karyomegaly, multinucleation, nuclear pleomorphism, and mitotic figures. Aspirates from MCTs may provide the same information more quickly, inexpensively, and less invasively. This study used these criteria to develop a cytologic grading scheme for canine MCTs to predict outcome. Three anatomic pathologists graded histologic samples from 152 canine MCTs. Three clinical pathologists evaluated aspirates from these masses using similar criteria. A cytologic grading scheme was created based on correlation with histologic grade and evaluated with a kappa statistic. Survival was evaluated with Kaplan-Meier survival curves. Cox proportional hazards regression was used to estimate hazard ratios for tumor grades and individual grading components. Simple logistic regression tested for relationships between risk factors and mortality. The cytologic grading scheme that best correlated with histology (kappa = 0.725 ± 0.085) classified a tumor as high grade if it was poorly granulated or had at least 2 of 4 findings: mitotic figures, binucleated or multinucleated cells, nuclear pleomorphism, or >50% anisokaryosis. The cytologic grading scheme had 88% sensitivity and 94% specificity relative to histologic grading. Dogs with histologic and cytologic high grade MCTs were 39 times and 25 times more likely to die within the 2-year follow-up period, respectively, than dogs with low grade MCTs. High tumor grade was associated with increased probability of additional tumors or tumor regrowth. This study concluded that cytologic grade is a useful predictor for treatment planning and prognostication. © The Author(s) 2016.
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