- Expression of Anaphase Promoting Complex in Surgically Resected Squamous Cell Carcinoma and Adenocarcinoma of the Lung.
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Ji Sun Song, Soon Hee Jung, Minseob Eom, Sang Yeop Yi, Kwang Hwa Park, Yup Kang, Ho Young Kim
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Korean J Pathol. 2006;40(1):52-59.
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 Abstract
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- BACKGROUND
The anaphase promoting complex (APC) promotes the degradation of mitotic cyclins as well as other substrates involved in sister chromatid adhesion. This study was carried out to examine the relationship between the APC expression and the clinicopathological variables, in an attempt to determine the role of the APC in the proliferation of lung cancer and to evaluate the possibility of an aberrant APC function in surgically resected squamous cell carcinomas and adenocarcinomas of the lung.
METHODS
Immunohistochemical staining was performed for APC, Ki-67, cyclin B1, Cdc2, MMP-2 and VEGF in 55 cases of squamous cell carcinoma and 34 cases of adenocarcinoma of the lung, using the avidin-biotin-peroxidase method.
RESULTS
The immunohistochemical stains for APC revealed a positive reaction in 49 cases (55.1%). The APC expression level was higher in the cyclin B1-positive group (p= 0.01), the Cdc2-positive group (p=0.001), the MMP-2-positive group (p=0.03), the group with lymph node metastasis (61.4% vs 48.9%), and the group with stage II/III cancer (60.7%) compared with those with stage I (42.9%).
CONCLUSIONS
The APC may have an aberrant function, such as a change in its role in controlling the cell cycle, and might be associated with the invasiveness and proliferation of tumor cells.
- Subcutaneous Bronchogenic Cyst of the Shoulder: A Case Report.
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Ji Sun Song, Hwa Eun Oh, Sang Yeop Yi, Noh Hyuck Park, Ho Young Kim
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Korean J Pathol. 2006;40(1):73-75.
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Abstract
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- Bronchogenic cyst is an uncommon congenital anomaly that arises from maldevelopment of the primitive foregut, and is usually found in the lung and mediastinum. Cutaneous or subcutaneous bronchogenic cysts are rare, and occur especially in the shoulder region. We report here on a 40-year-old woman with a soft, nontender, cystic mass on the upper posterior aspect of the right acromioclavicular joint; this had been recognized about 20 years before. She underwent incision and drainage of the lesion at a local clinic about 1 year ago, but the wound was not healed. MRI showed an irregular-shaped dark signal intensity lesion that measured 2 x 1.5 cm in the subcutaneous fat layer.
Microscopically, the cyst was lined by pseudostratified ciliated columnar epithelium that displayed squamous metaplasia. The cyst wall revealed frequent smooth muscle bundles, occasional seromucous glands and multifocal lymphocytic infiltration. This is the first reported case of subcutaneous bronchogenic cyst of the shoulder in a Korean adult.
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