Ayadi Lobna, Zribi Jihène, Mziou Taha J, Ellouz Sameh, Khabir Abdelmajid, Bahri Ibtissem, Turki Hamida, Sellami-Boudawara Tahya
Laboratoire d'Anatomie et de CytologiePathologiques, CHU, Habib Bourguiba Sfax-Tunisie.
Tunis Med. 2009 May;87(5):354-5.
Cutaneous metastasis of rectal carcinoma is a rare event. It occurs in 4% of all patients with rectal cancer. Skin metastasis of rectal cancer are usually detected near the initial tumor, especially in the periumbilical region; but they rarely occur in the scalp.
To report a new case of scalp metastases from rectal tumor.
Our patient was a 63-year old male with a history of small cell carcinoma of the rectum who subsequently developed a single nodule of the scalp of 4cm. Histopathological analysis revealed a small cell carcinoma infiltrating the dermis and subcutaneous tissue. The patient underwent palliative chemotherapy but his disease continued to progress.
In contrast to the prior cases of scalp metastases reported in the literature, ours is the first documentation of such an occurrence from rectal small cell carcinoma. The early diagnosis of skin metastases in these patients is very important because it can alter treatment.
直肠癌皮肤转移是一种罕见事件。在所有直肠癌患者中，其发生率为4%。直肠癌的皮肤转移通常在原发肿瘤附近被发现，尤其是在脐周区域；但很少发生在头皮。
报告一例直肠肿瘤头皮转移的新病例。
我们的患者是一名63岁男性，有直肠小细胞癌病史，随后头皮出现一个4厘米的单个结节。组织病理学分析显示为浸润真皮和皮下组织的小细胞癌。患者接受了姑息化疗，但病情仍继续进展。
与文献中先前报道的头皮转移病例不同，我们的病例是直肠小细胞癌发生此类情况的首例记录。这些患者皮肤转移的早期诊断非常重要，因为它会改变治疗方案。
