Biomedical subjects

Tsutomu Kawabata

Publications and source records attributed to Tsutomu Kawabata.

3 recordsLinked to original sources

PubMed2005

Novel approach for a pulmonary bronchogenic cyst: a report of a case.

We present a case of a bronchogenic pulmonary cyst in a 48-year-old patient. We performed [corrected] mucoclasis using argon laser photocoagulation following resection of mucosa, closure of some drainage bronchus, and covering of the inner surface by the intrapulmonary bronchogenic cyst with an [corrected] absorbable vicryl mesh. At [corrected] 4-year [corrected] follow-up, the patient had no signs of recurrence.

Bronchogenic Cyst↗

PubMed2004

Lung adenocarcinoma with coexisting pulmonary cryptococcoma.

A 73-year-old female was referred to our hospital in June 2000 for the evaluation of an abnormal shadow in the left upper lobe of her lung and two other shadows in the left lower lobe. A computed tomography examination revealed an ill-defined tumor with ground glass opacity in the left upper division segment, suggesting a primary lung adenocarcinoma, and two well-defined nodules in the left lower lobe, suggesting metastatic carcinomas. A transbronchial lung biopsy of the tumor in the upper division segment confirmed the presence of an adenocarcinoma but failed to provide a histological diagnosis for the nodules in the lower lobe. A partial resection of the left lower lobe using video-assisted thoracoscopy revealed granulomatous tissue with no signs of malignancy. A curative resection of the adenocarcinoma in the left upper division segment was therefore performed. Histologically, the resected specimens obtained from the left lower lobe were diagnosed as cryptococcomas. The patient was diagnosed as having a stage IA lung adenocarcinoma and two cryptococcomas. The patient is presently well and has not experienced any recurrences or relapse for 3 years since the resection.

Adenocarcinoma↗

PubMedDate not supplied

Pulmonary dirofilariasis: computed tomography findings and correlation with pathologic features.

OBJECTIVE: The purpose of this study was to describe the computed tomography (CT) and pathologic features of 5 nodules of pulmonary dirofilariasis in 4 patients. METHODS: Four patients with 5 nodules of pathologically confirmed pulmonary dirofilariasis who under went CT were enrolled, and the imaging interpretations were retrospectively compared with the histopathologic characteristics. RESULTS: Three of the 4 patients had a solitary nodule, and the remaining patient had 2 nodules. All the nodules were distributed in the right lower lobe and were attached to the pleura. They were all round or oval in shape and ranged in size from 11 to 22 mm in largest diameter (mean=17 mm). On thinner section CT, the nodules had a well-defined smooth margin with or without a shallow notch; they were connected to the arterial branch and, occasionally, to the venous branch. On contrast-enhanced CT, all the nodules contained a homogeneous low-attenuation area, which corresponded to areas of coagulative necrosis on histopathologic examination. CONCLUSION: Although the CT findings of a pulmonary dirofilariasis nodule are nonspecific, awareness of the findings on contrast-enhanced CT and the pathologic appearance of this rare benign condition may facilitate its differentiation from a malignant nodule.

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