男，52岁，患皮肤病10余年，反复发作，累及全身。躯干及四肢伸侧分布大小不一的红斑，绿豆大小，斑片状，肘、膝、腰、骶尾部更为明显，皮损边界清楚，红斑表面覆有分层云母样鳞屑；鳞屑易剥除，下方呈发亮淡红色薄膜状及点状出血。头皮皮损表面有较厚鳞屑，头发成束。手足甲呈凹陷点，甲床肥厚。
该病的病理不可能是（）
A.角化不全伴角化过度
B.颗粒层变薄
C.棘层变薄
D.表皮突规则下延
E.微脓肿
F.真皮 * * 层毛细血管扩张
参考答案：C
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