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Case ReportOpen Access
Mucinous Cystadenocarcinoma of the Lung
Tangthangtham A 
,
Chonmaitri I ,
Tungsagunwattana S ,
Charupatanapongse U
,
Chonmaitri I ,
Tungsagunwattana S ,
Charupatanapongse U One case of primary mucinous cystadenocarcinoma of the lung is recorded. The patient
was a 67-year-old male with a peripheral mass of the right lung, treated by pneumonectomy. The
tumor was made up of fibrous-walled cyst containing abundant mucinous material. Microscopically,
it revealed the same morphology as its counterparts arising in other common sites:
ovary, appendix and pancreas. The transitional change of the cystic lining from benign features
resembling reactive respiratory epithelium to frank malignancy indicated that the tumor had the
origin from the lung. This is a very rare intrapulmonary neoplasm that should be differentiated
from metastatic lesion and mucinous bronchioloalvolar carcinoma due to different clinical
courses and prognoses.
was a 67-year-old male with a peripheral mass of the right lung, treated by pneumonectomy. The
tumor was made up of fibrous-walled cyst containing abundant mucinous material. Microscopically,
it revealed the same morphology as its counterparts arising in other common sites:
ovary, appendix and pancreas. The transitional change of the cystic lining from benign features
resembling reactive respiratory epithelium to frank malignancy indicated that the tumor had the
origin from the lung. This is a very rare intrapulmonary neoplasm that should be differentiated
from metastatic lesion and mucinous bronchioloalvolar carcinoma due to different clinical
courses and prognoses.
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