A Proposal for Creating a Guideline for Cancer Registration of the Fibromatosis, PEComa Group, Malignant Lymphoma In Situ and Dendritic Cell Tumors (III)

BACKGROUND: Understanding the biologic behavior of a tumor is a prerequisite for tumor registration code assignment. The aim of this report was to propose appropriate behavior codes of the International Classification of Disease Oncology 3 (ICD-O3) to rare, yet pathologically interesting hematopoietic and soft tissue tumors. METHODS: The Study Group for Hematopathology, the Bone and Soft Tissue Pathology Study Group, and the Cancer Registration Committee prepared the questionnaire containing provisional behavior codes of selected diseases. RESULTS: In situ lesions of mantle cell and follicular lymphomas, dendritic cell tumors, and neoplasms with perivascular epithelioid cell differentiation (PEComa), not otherwise specified were classified as malignant (-/3). The fibromatosis group, with the exception of lipofibromatosis, was proposed as benign (-/0). Lipofibromatosis and several diseases that belong to the PEComa group were proposed as uncertain malignant potential (-/1). For the hematologic and soft tissue tumors, 274 and 288 members of the Korean Society of Pathologists, respectively, provided opinions through questionnaire, and most responders showed agreement with the provisional behavior code proposed. CONCLUSIONS: The determination of behavior codes for the rare diseases described in this study, especially those of the PEComa group or malignant lymphoma, could be viewed as impractical and premature, but this study provides the basis for future research on this topic.

Mammary Fibromatosis: Sonographic Features and Pathologic Correlations

PURPOSE: The purpose of this study was to determine if the sonographic features of mammary fibromatosis had correlation with the pathologic findings. MATERIALS AND METHODS: We identified four cases of fibromatosis of the breast at our institution over a 10-year period. The patients were all women, and they ranged from 25 to 48 years of age (mean, 34.3 years). All four patients complained of palpable breast masses and were subsequently diagnosed with mammary fibromatosis. We retrospectively reviewed their imaging findings. RESULTS: Mammography obtained in one patient revealed architectural distortion. On sonography, all four cases showed spiculated, irregular, hypoechoic masses that could not be differentiated from malignant lesions. After surgical excision and vacuum-assisted biopsy of the masses in four patients, there was no recurrence on clinical or sonographic follow-up over a 13-36 month period. CONCLUSION: Although mammary fibromatosis is a very rare condition, it should be included in the differential diagnosis when an un-calcified, spiculated, irregular and hypoechoic masses are encountered on breast sonography.

A case of angioedema associated with eosinophilia / 천식및알레르기

Episodic angioedema with eosinophilia was described by Gleich, et al. as a distinct entity characterized by recurrent angioedema, urticaria, leukocytoeis with remarkable eosinophilia, fever and periadically increased body weight. Since then, several cases of this disorder have been reported in the United States, Europe and Japan. We present a Korean patient whose clinical, histopathologic, and laboratory findings are consistent with the syndrome of episodic angioedema with eosinophilia. This case supports the previous study that revealed some differences between Asian and Caucasian patients.