title: Pseudoprogression of lung cancer after concomitant chemoradiotherapy.
abstract: We observed re-enlargement of a squamous cell carcinoma without recurrence. The tumour regressed markedly after concomitant chemoradiotherapy, but within 1 month, we supposed that the tumour had enlarged again and resection was performed. The resected tissue showed evidence of haemorrhage and several lymphocytes and macrophages, but no malignant cells were detected. We herein report a rare case of lung cancer showing a pathological complete response despite re-enlargement of tumour lesion.
authors.affiliation: Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata, Okayama, Okayama 700-8558, Japan.
authors.forename: Eiki
authors.initials: E
authors.lastname: Ichihara
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Kiura
authors.forename: Nagio
authors.initials: N
authors.lastname: Takigawa
authors.forename: Masako
authors.initials: M
authors.lastname: Omori
authors.forename: Motoi
authors.initials: M
authors.lastname: Aoe
authors.forename: Mitsune
authors.initials: M
authors.lastname: Tanimoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Date
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000188:drug therapy / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery; D017024:Chemotherapy, Adjuvant; D018450:Disease Progression; D006470:Hemorrhage; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology / Q000601:surgery; D018714:Radiotherapy, Adjuvant; D014057:Tomography, X-Ray Computed