Medicine · 2021
Pulmonary mucinous cystadenoma complicated with infection: A rare case report.
Клинический случайСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Luo Zhou-Ye, Shen Xun-Ze, Liu Fang, Lin Chen
Аннотация
RATIONALE: Mucinous cystadenoma is a benign tumor that is commonly found in the pancreas, ovaries, or appendix, but is rarely encountered in the lungs. Worldwide, only a few reported cases of these tumors originate in the lungs. Herein, we analyzed the imaging features of a case of pulmonary mucinous cystadenoma (PMCA). To the best of our knowledge, this is the first reported case of PMCA complicated by significant infection.
PATIENT CONCERNS: A 57-year-old man was admitted to our hospital with blood in sputum for more than 2 months. Serum laboratory examination showed significantly elevated leukocyte and tumor marker, carcinoembryonic antigen. Enhanced thoracic computed tomography and whole-body positron emission tomography/computed tomography showed a cystic-solid ill-defined mass in the right upper lung.
DIAGNOSIS: The tumor was considered malignant, both clinically and radiologically.
INTERVENTIONS: The patient underwent right upper lobe tumor resection and mediastinal lymph node dissection.
OUTCOMES: Postoperative specimen pathology was diagnosed as PMCA with infection. The patient was not administered any further treatment. The patient was alive without any recurrence or metastasis of the tumor after 2 years of follow-up.
LESSONS: Preoperative diagnosis of PMCA with atypical imaging and clinical manifestations is extremely difficult. This is the first reported case of PMCA complicated by a significant infection that was misdiagnosed preoperatively as a malignancy.
PATIENT CONCERNS: A 57-year-old man was admitted to our hospital with blood in sputum for more than 2 months. Serum laboratory examination showed significantly elevated leukocyte and tumor marker, carcinoembryonic antigen. Enhanced thoracic computed tomography and whole-body positron emission tomography/computed tomography showed a cystic-solid ill-defined mass in the right upper lung.
DIAGNOSIS: The tumor was considered malignant, both clinically and radiologically.
INTERVENTIONS: The patient underwent right upper lobe tumor resection and mediastinal lymph node dissection.
OUTCOMES: Postoperative specimen pathology was diagnosed as PMCA with infection. The patient was not administered any further treatment. The patient was alive without any recurrence or metastasis of the tumor after 2 years of follow-up.
LESSONS: Preoperative diagnosis of PMCA with atypical imaging and clinical manifestations is extremely difficult. This is the first reported case of PMCA complicated by a significant infection that was misdiagnosed preoperatively as a malignancy.