Computed Tomographic and Pathological Features of Primary Pulmonary Sarcomatoid Carcinoma / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
;
(6): 93-98, 2016.
Article
in English
| WPRIM
| ID: wpr-289899
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the computed tomographic (CT) and pathological features of primary pulmonary sarcomatoid carcinoma (PSC).</p><p><b>METHODS</b>The clinical data and CT images of 20 patients with pathologically confirmed PSC were retrospectively analyzed.</p><p><b>RESULTS</b>Solitary pulmonary mass was identified in 18 patients and multiple pulmonary masses in 2 patients, amounting to 22 masses. There were 17 peripheral masses and 5 central masses, including 11 masses larger than 5 cm. The smooth margin was identified in 9 masses, deep lobulation and/or spinous protuberance in 11 masses, and ill-defined margin in 2 masses. Pleural indentation was identified in 2 masses and pleural thickening with wide basement was identified in 14 masses. On plain CT, cavity was observed in 5 masses, hypo-density in 7 masses, and homogeneous density in 10 masses. On contrast-enhanced CT scanning, irregular ring/patchy enhancement were shown in 15 masses and slightly homogenous enhancement in 2 masses. Of all patients, 6 patients had unilateral or bilateral hilar and/or mediastinal lymphadenopathy. There were 16 pleomorphic carcinomas and 4 spindle cell carcinomas. Immunohistochemically, anti-pan cytokeratin antibody was positive in 13 patients, cytokeratin was positive in 8 patients, Vimentin was positive in 15 patients, epithelial membrane antigen was positive in 1 patient, and thyroid transcription factor-1 was positive in 8 patients.</p><p><b>CONCLUSION</b>PSC has some specific CT features; however, the final confirmation of PSC still depends on pathological and immunohistochemical examinations.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Sarcoma
/
Transcription Factors
/
Nuclear Proteins
/
Tomography, X-Ray Computed
/
Retrospective Studies
/
Thyroid Nuclear Factor 1
/
Lung Neoplasms
Type of study:
Observational study
/
Prognostic study
Limits:
Humans
Language:
English
Journal:
Acta Academiae Medicinae Sinicae
Year:
2016
Type:
Article
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