Spindle Cell Carcinoma of the Oral Cavity: the Impact of Chemotherapy on Pulmonary Metastatic Tumor Doubling Time.
Spindle cell carcinoma (SpCC) an aggressive squamous cell carcinoma, variant, frequently metastasizes to regional lymph nodes and distant organs. Unfortunately, an effective treatment method for oral SpCC distant metastasis has not yet been established. Here we present 2 of oral SpCC cases that showed distant metastases after initial treatment, and 2 that showed distant metastases following during surgery. We calculated the tumor doubling time (TDT) and onset of the pulmonary metastatic and examined the TDT of the pulmonary metastatic tumor in patients with or without chemotherapy to determine the effect of anticancer drugs on oral SpCC. Tumor growth curves revealed that pulmonary metastasis likely grew to 1mm, 122 days before the initial examination, indicating that most oral SpCC patients should be treated for metastases. Three patients underwent chemotherapy for pulmonary metastatic tumor, complete response (CR) in one patient and no change (NC) in two. Thus, SpCC patients may have pulmonary micro-metastases even at the initial examination. We recommend wide resection for oral SpCC patients, followed by chemotherapy to prevent metastases.
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Takashi
T
Shigeta
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Tsutomu
T
Minamikawa
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Taiki
T
Matsui
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Yasumasa
Y
Kakei
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Masaya
M
Akashi
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Takumi
T
Hasegawa
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Akiko
A
Sakakibara
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Yasuyuki
Y
Shibuya
Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
Takahide
T
Komori
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000970:Antineoplastic Agents / Q000627:therapeutic use; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy / Q000556:secondary* / Q000601:surgery; D017024:Chemotherapy, Adjuvant; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary*; D008297:Male; D009062:Mouth Neoplasms / Q000188:drug therapy / Q000473:pathology* / Q000601:surgery
D000970:Antineoplastic Agents
chemotherapy; oral cavity; pulmonary metastasis; spindle cell carcinoma; tumor doubling time