Nihon Kyōbu Shikkan Gakkai zasshi
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Nihon Kyobu Shikkan Gakkai Zasshi · Jul 1993
Case Reports[Aniline-induced methemoglobinemia monitored by pulse oximetry].
A case of aniline-induced methemoglobinemia is reported. When the pulse oximeter reading (SpO2) was 80%, the oxygen saturation measured by a co-oximeter (SaO2) was 61.2%, the oxygen saturation calculated from PaO2 values was 98.9% and methemoglobin level was 38.8%. After methylene blue injection, methemoglobin level decreased gradually. ⋯ If disparity between SpO2 and the oxygen saturation calculated from PaO2 values is noted, the presence of methemoglobinemia must be suspected. In clinical situations, the pulse oximeter permits the continuous noninvasive monitoring of oxygen saturation. It is necessary, however, to consider the potential errors in pulse oximetry.
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Nihon Kyobu Shikkan Gakkai Zasshi · Jul 1993
Case Reports[A case of pleural involvement followed by idiopathic retroperitoneal fibrosis].
We report a rare case of pleural involvement followed by idiopathic retroperitoneal fibrosis in a 55-year-old man. He complained of right chest pain and his chest radiogram showed pleural thickening and calcification. Chest X-ray computed tomogram (CT) also showed a mass-like pleural thickening and a soft tissue density lesion surrounding the thoracic aorta, suggesting fibrosis. ⋯ Abdominal X-ray CT revealed a retroperitoneal lesion of soft tissue density comprised of a smooth and clearly delineated mass which encased the large vessels and ureters, compatible with retroperitoneal fibrosis. Although it was not possible to biopsy the retroperitoneal lesion, the lesion was clinically and radiologically thought to be retroperitoneal fibrosis. We could not determine the etiology of these findings, but such a case of pleural involvement followed by idiopathic retroperitoneal fibrosis was considered to be very rare.
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Nihon Kyobu Shikkan Gakkai Zasshi · Jul 1993
Case Reports[A case of alveolar microlithiasis which developed spontaneous pneumothorax due to progression of emphysematous bullae during 34 years after established diagnosis].
The patient was a 46-year-old man who was taxi driver. He had received therapy for miliary tuberculosis from nine years old, and the diagnosis of alveolar microlithiasis was made by open lung biopsy at twelve years of age in 1956. At that time, there were no emphysematous bullae, and slight alveolar wall thickening was observed histopathologically. ⋯ Thus, in this patient, emphysematous bullae progressed resulting in a pneumothorax, and lung fibrosis also developed 34 years after the diagnosis of alveolar microlithiasis. Alveolar microlithiasis is occasionally misdiagnosed as miliary tuberculosis. The authors stress that the chest roentgenographic finding of ari-bronchogram demonstrating intra-alveolar foci is an important sign in the differential diagnosis.
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Nihon Kyobu Shikkan Gakkai Zasshi · Jul 1993
Case Reports[A case of so-called benign metastasizing leiomyoma responsive to progesterone].
A 47-year-old female, who had undergone hysterectomy and unilateral oophorectomy in 1975, was admitted to our hospital in 1989 because chest X-ray films revealed an increase in size and number of pulmonary nodules for two years. On admission, a left inguinal tumor was found and histologically it consisted of smooth muscle cells with nuclear atypia arranged in interlacing fascicles. An open-lung biopsy was performed. ⋯ At two years the pulmonary lesions had regressed. BML is a rare condition, considered to be pulmonary metastasis from low-grade leiomyosarcoma of the uterus. Measuring estrogen and progesterone receptors in lung biopy material may help determine the most appropriate therapy.