PubMed · 3977016
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P M Bakker, H Barrowclough. 1985. A question of priority or misunderstanding?. https://pubmed.ncbi.nlm.nih.gov/3977016/
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We report a case of basaloid carcinoma of the thymus, confirmed by histopathological examination, in a 52-year-old man who underwent complete resection. Local recurrence and lung metastases developed, which were obliterated by radiation therapy. The patient survived for 81 months after surgery. We reviewed the 13 other cases of basaloid carcinoma of the thymus reported in the literature. Presumably, this tumor is radiosensitive and its metastatic route is blood-borne.
Basosquamous carcinoma of the skin is a relatively rare cutaneous neoplasm that has been shown to have significant metastatic potential. Histopathologists debate whether these lesions arise de novo or differentiate from pre-existing basal cell carcinomas. We present a case in which a longstanding lesion initially diagnosed as basal cell carcinoma was later found to have basosquamous histology and regional metastases. Review of the literature reveals a metastatic rate greater than that of basal cell and squamous cell carcinoma, and identifies several important characteristics that impact prognosis after surgical resection. For physicians treating carcinomas of the skin, it is important to understand the natural history and proper treatment of this aggressive neoplasm.
PATIENTS AND METHODS: Surgical specimens belonging to 16 patients who underwent partial laryngectomy for T1 glottic cancer were subjected to detailed histopathologic examination; 11 of the patients were staged as T1a while 5 were staged as T1b. RESULTS: It was detected that in 11 patients the tumor was confined to the mucosal or submucosal connective layer, and in 5 (31.2%) cases, the tumor invaded the thyroarytenoid (TA) muscle. In cases involving the one-third anterior part of the vocal cords and the anterior commissure, a 50% (4/8) TA muscle invasion was detected. DISCUSSION AND CONCLUSION: Our finding TA muscle invasion at the rate of 31.2% in our 16 case series clinically staged as T1 revealed that deep invasion did not always impair the vocal cord mobility. Observing TA muscle invasion at the rate of 50% in cases involving the one-third anterior part of the vocal cord and the anterior commissure suggested that TA muscle invasion in the anterior part did not significantly impair mobility.