Inflammatory pseudotumor of lymph nodes: clinicopathologic and immunohistological study of 11 Japanese cases
| Autor: | Masaru Kojima, Kazuhiko Shimizu, Shigeo Nakamura, Nobuhide Masawa, Hideaki Itoh, Yoshihiro Ohno, Nobuo Yamane, Katsue Yoshida, Yasuo Hosomura |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
0301 basic medicine
Adult Male Pathology medicine.medical_specialty Herpesvirus 4 Human Adolescent Fever Biopsy Biology Granuloma Plasma Cell Pathology and Forensic Medicine Diagnosis Differential 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Japan medicine Lymph node stromal cell Humans Child Lymph node Anaplastic large-cell lymphoma Lymphatic Diseases Histiocyte Middle Aged medicine.disease Immunohistochemistry Vascular endothelial growth factor 030104 developmental biology medicine.anatomical_structure chemistry 030220 oncology & carcinogenesis Follicular dendritic cell sarcoma Child Preschool Inflammatory pseudotumor Surgery Female Lymph Anatomy |
| Zdroj: | International journal of surgical pathology. 9(3) |
| ISSN: | 1066-8969 |
| Popis: | We report 11 Japanese cases of inflammatory pseudotumor (IPT) of the lymph node. There were 7 males and 4 females with ages ranging from 5 to 68 years (median; 48). Only 2 patients had systemic lymphadenopathy, and all others had involvement of only 1 lymph node group. Constitutional symptoms such as fever were present in 8 patients and laboratory abnormalities were detected in 5. All patients recovered and were alive and well after 2 to 180 months (median; 32 months). Histologically, the process mainly involved the connective tissue framework of the lymph node, secondarily spreading into the lymph node parenchyma and the perinodal tissue. It was characterized by a storiform growth pattern of myofibroblasts, marked vascularity with associated vascular lesions, and a polymorphous reactive cellular infiltrate in a collagen-rich stroma. An immunohistochemical study revealed numerous myofibroblasts, histiocytes, and vascular endothelial cells expressing vascular endothelial growth factor (VEGF) in 6 cases. It was suggested that VEGF may be involved, in part, in the induction of the angiogenesis of IPT. Moreover, the present study indicates that follicular dendritic cell sarcoma, nasal T/natural killer cell lymphoma, and anaplastic large cell lymphoma should be added to the differential diagnosis from IPT of the lymph node. Int J Surg Pathol 9(3):207-214, 2001 |
| Databáze: | OpenAIRE |
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