毛母质瘤罕见，肿瘤位于真皮内，常累及皮下组织。 本疾病多见于中老年人，平均年龄为61.7岁，有见最小患者为11岁，女性多于男性。肿瘤主要发生于躯干或肢体，少见于头皮，表现为结节或斑块，虽可局部多次复发，但极少转移。
将霰粒肿、眼睑毛母质瘤和基底细胞癌与细胞学上的发现进行对比。
The cytologic findings were compared to chalazion, pilomatrixoma and eyelid basal cell carcinoma.
与活检结果对照，并与霰粒肿、眼睑毛母质瘤和基底细胞癌的细胞学特点进行比较。
The cytologic findings were described and compared to corresponding histological features, and moreover, compared to chalazion, pilomatrixoma and eyelid basal cell carcinoma.
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