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Biomedical subjects

K Moriyasu

Publications and source records attributed to K Moriyasu.

8 recordsLinked to original sources
PubMed1991

[A case of mediastinal cavernous hemangioma].

A case of mediastinal cavernous hemangioma was reported. An asymptomatic 6-year-old girl was discovered to have a mass in the left anterior superior mediastinum on a routine chest x-ray film. Computed tomograms demonstrated a mediastinal mass with calcification. Under a median sternotomy, a 10 x 9 x 5 cm mass was resected after dissecting the connections to the pericardium. As the mass surrounded the left phrenic nerve, the nerve was resected with the tumor. The histopathology was cavernous hemangioma. The calcification was not found in the vessels as the phleboliths but was showed in the interstitial tissues.

Calcinosis↗
PubMed1991

[A case of esophageal duplication cyst associated with a total left pericardial defect].

Esophageal duplication cyst associated with pericardial defect in a 57-year-old man is reported. Differential diagnosis was very difficult in the preoperative examination. The tumor was a cyst and its wall was a perfect replica of normal esophagus e.g. esophageal duplication, and total left pericardial defect also was found at the operation. There was no malignant or inflammation findings in the excised specimens. The association of esophageal duplication cyst associated with pericardial defect is very rare.

Esophageal Cyst↗
PubMed1990

[Nonsurgical retrieval of intra-cardiovascular catheter fragments].

Migrated intra-cardiovascular fragments from broken catheters were retrieved transvenously in 6 cases. In all of these cases, the catheters had been used for total parenteral nutrition. The catheter fragments were lodged in the pulmonary artery in 3 cases and in the right atrium in the others. A basket-type grasping forceps modified for this retrieval technique was inserted via the subclavian vein, femoral vein or basilic vein percutaneously. The migrated catheter fragments were removed successfully without any clinical complications in all 6 cases. Appropriate evaluation of the lodging site and length of the fragment, and careful examination of general condition should be carried out prior to this procedure. This noninvasive maneuver is simple, safe and reliable, and can be promptly. It is considered to be a reliable method of choice in cases of migrated catheter fragment.

Aged↗