一名 82 岁男性因头皮上有赘生物就诊 7 个月。尽管使用各种洗发水和全身加局部抗生素治疗，但它的大小仍在增加。很痒，伴有烧灼感。最近，患者体重减轻了35磅。针对恶性肿瘤的广泛检查包括计算机轴向断层扫描（CAT）以及胃肠道和呼吸道检查；然而，这种体重减轻的病因尚未确定。人们认为这与头皮病变没有直接关系。任何感染性病因的检查，包括血培养，均被证明是无作用的。他过去的病史包括慢性阻塞性肺病和胃炎。他还患有长期吸烟史。

An 82-year-old man presented with a growth on his scalp for 7 months. It was increasing in size despite treatment with a variety of shampoos and systemic plus topical antibiotics. It was pruritic with a burning sensation. Lately, the patient had a body weight loss of 35 pounds. Extensive work-ups for malignancy included computerized axial tomography (CAT) and examinations of the gastrointestinal and respiratory tracts; however, no etiology for this weight loss was established. This was not thought to be directly related to the scalp lesion. Work-ups for any infectious etiology, including blood cultures, were proven to be noncontributory. His past medical included chronic obstructive pulmonary disease and gastritis. He also patient had a long history of tobacco use.