Primary post-radiation angiosarcoma of the small bowel. Report of a case and review of the literature.

Angiosarcomas developing in unusual sites such as the small bowel are rare, and fewer than 65 cases have been reported in the literature. They are not uncommonly associated with a known eliciting factor. Thus, among hitherto described cases of angiosarcoma of the small bowel, 16 were radiation-induced. One additional example of ileal post-irradiation angiosarcoma (PRA) in a 72-year-old female patient with a past history of uterine leiomyosarcoma is herein reported as a reminder of this causal association. The morphologic and immunohistochemical clues leading to the correct diagnosis of PRA of the small bowel and the differential diagnostic problems are discussed; a comprehensive review of the literature has also been performed with a focus on survival.

Kikuchi Fujimoto lymphadenitis: case report and literature review.

We describe a young woman with two severe episodes of Kikuchi Fujimoto disease occurring 16 years apart. Both episodes were proven by biopsy, and on the second occasion the patient remained dependent on high-dose prednisone for more than 6 months in order to control inflammation and achieve a reduction in cervical lymph node size. The second lymph node biopsy showed leukocytoclastic vasculitis in addition to the typical features of Kikuchi Fujimoto disease, but, even though the clinical interpretation of this finding was unclear, we documented no clinical or laboratory evidence of the development of other serious systemic disease over 20 years of follow-up. Kikuchi Fujimoto disease is considered a disorder with a self-limited course and a favorable outcome. However, on the basis of our experience with this patient and data from peer-reviewed literature, we suggest that this generally accepted postulate should be revised.