1/26. The histopathology of cutaneous lesions of Kikuchi's disease (necrotizing lymphadenitis): a report of five cases.Kikuchi's disease (KD) is an idiopathic, self-limited necrotizing lymphadenitis that can clinically and histologically mimic high-grade lymphoma, including Hodgkin's disease, or can be mistaken for the lymphadenitis of systemic lupus erythematosus (SLE). Involvement of extranodal sites is unusual but well documented, especially in asia, where KD is more common than in north america or europe. The successful distinction of KD from malignant lymphoma and SLE is imperative for the appropriate treatment of affected patients. We describe five patients with cutaneous involvement by KD, all of whom presented with fever, lymphadenopathy, and an eruption on the skin of the upper body, which in one case was clinically suspected to be due to SLE and in another, polymorphous light eruption. The patients ranged in age from 10 months to 42 years (median, 33 years) and included three females and two males. All five patients had negative serologic studies for collagen vascular disease. Each patient had a lymph node biopsy showing the typical necrotizing lymphadenitis of KD. skin biopsies from all five patients shared a specific constellation of histologic features: vacuolar interface change with necrotic keratinocytes, a dense lymphohistiocytic superficial and deep perivascular and interstitial infiltrate, varying amounts of papillary dermal edema, and abundant karyorrhectic debris with a conspicuous absence of neutrophils and a paucity of plasma cells, paralleling the nodal histology in KD. CD68 immunohistochemistry on paraffin-embedded sections showed many histiocytes and plasmacytoid monocytes in all cases, whereas CD3, CD4, and CD8 showed highly variable staining among the cases. There was only rare staining with TIA-1 and CD30. We believe that the papular eruption of KD has recognizable histopathologic features and that a CD68 stain that marks many cells that initially seem to be lymphocytes can be performed to confirm the diagnosis.- - - - - - - - - - ranking = 1keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
2/26. Acute mesenteric and retroperitoneal lymphadenitis in systemic lupus erythematosus: case report.In a young woman with clinical evidence of acute cutaneous, musculoskeletal, and neurologic manifestations of systemic lupus erythematosus, computed tomography (CT) showed enlarged, centrally hypoattenuating mesenteric and retroperitoneal lymph nodes. After treatment with steroids, the CT appearance of the lymph nodes returned to normal. The differential diagnosis of lymph nodes with central hypoattenuation includes mycobacterium tuberculosis infection, metastatic disease (especially squamous cell carcinoma and germ cell tumor), Whipple's disease, and celiac disease in addition to lupus lymphadenitis.- - - - - - - - - - ranking = 5.052506904928keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
3/26. Lupus lymphadenitis simulating Kikuchi's lymphadenitis in patients with systemic lupus erythematosus: a clinicopathological analysis of six cases and review of the literature.Kikuchi's disease (KD) or Kikuchi's lymphadenitis (KL) is a self-limiting disease mostly affecting the cervical lymph nodes of young individuals. Whether the reported cases of KL associated with systemic lupus erythematosus (SLE) were genuine KL or lupus lymphadenitis (LL) simulating KL in SLE patients is not clear. We analyzed six cases of KD-like lymphadenitis occurring in SLE patients and 12 reported cases to clarify the relationship between KL and SLE. We found that not all cases occurred simultaneously with SLE. Eight cases occurred either before or after SLE. These cases might have true KL independent of SLE with the exception of two cases that occurred after SLE, but the patients still had lupus activity. The 10 cases that coexisted with SLE most likely had LL rather than KL. This was supported by the immunohistochemical finding of sparse cytotoxic T cells in those lymph nodes in contrast to abundant cytotoxic T cells usually seen in a typical KL. We conclude that KL is not related to SLE, and KD-like lymphadenitis coexisting with SLE should be regarded as LL. Pathologists should be aware of the possibility that LL can mimic KL in patients with SLE, especially necrotizing-type KL.- - - - - - - - - - ranking = 4.3283920311838keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
4/26. Fine needle aspiration cytology in lupus lymphadenopathy. A case report.This case report describes the aspiration cytologic characteristics of histologically proven acute lupus lymphadenitis. The aspirate contained numerous lymphoid cells and many amorphous, basophilic, hematoxylin-stained bodies dispersed in a granular, necrotic background that lacked polymorphonuclear leukocytes. The lymphadenopathy was diagnosed cytologically as necrotizing lymphadenitis and histologically as acute lupus lymphadenitis.- - - - - - - - - - ranking = 0.3150414295682keywords = lupus (Clic here for more details about this article) |
5/26. Histiocytic necrotising lymphadenitis in systemic lupus erythematosus.Histiocytic necrotising lymphadenitis is the pathognomonic histological appearance of lymph nodes in Kikuchi's disease, a condition characterised by a brief systemic illness and lymphadenopathy. The case is described of a young man, originally diagnosed as having Kikuchi's disease by lymph node histology, who subsequently developed systemic lupus erythematosus with symmetrical polyarthritis, Coombs' positive haemolytic anaemia and haemorrhagic pneumonitis. The case emphasises that a range of diseases is associated with histiocytic necrotising lymphadenitis, belying the unitary impression given by the term Kikuchi's disease.- - - - - - - - - - ranking = 5keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
6/26. Kikuchi's lymphadenitis (necrotizing lymphadenitis) and systemic lupus erythematosus: a case report.A 26-year-old Indian lady was admitted for lower abdominal pain, diarrhoea, vomiting, fever and cough. The initial diagnosis was that of peritonitis secondary to ruptured or perforated viscus with lobar pneumonia. On laparotomy, she was found to have necrotizing or Kikuchi's lymphadenitis of the abdominal lymph nodes. The initial two antinuclear antibody (ANA) results came back negative. She was diagnosed to have systemic lupus erythematosus (SLE) when the third sample for ANA came back positive and the double-stranded dna (dsDNA) antibody test was homogenously positive. This case illustrates a need to be aware that necrotizing lymphadenitis can precede the onset of systemic lupus erythematosus.- - - - - - - - - - ranking = 6keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
7/26. Intraabdominal cryptococcal lymphadenitis in a patient with systemic lupus erythematosus.Cryptococcal infection is a rare, yet well recognized complication of systemic lupus erythematosus (SLE). We present a case of mesenteric and retroperitoneal cryptococcal lymphadenitis resulting in the obstruction of the stomach and proximal duodenum in a patient suffering from SLE, while recently she did not receive any immunosuppressive treatment. A 42-yr-old woman was admitted due to high fever and diffuse abdominal pain for three weeks. Abdominal computed tomography (CT) scan showed multiple conglomerated lymphadenopathies in the retroperitoneum and the mesentery resulting in luminal narrowing of the third portion of the duodenum. Cryptococcal lymphadenitis was proven by needle biopsy and she was treated with intravenous liposomal amphotericin b, followed by oral fluconazole. After fourteen-month antifungal therapies, the clinical symptoms and follow-up images improved. This case emphasize that the intrinsic immunological defects of SLE may be directly responsible for the predisposition to fungal infections.- - - - - - - - - - ranking = 5keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
8/26. Active human herpesvirus-6 (HHV-6) infection associated with Kikuchi-Fujimoto disease and systemic lupus erythematosus (SLE).histiocytic necrotizing lymphadenitis (Kikuchi-Fujimoto disease) is a well defined disorder primarily affecting young adults. The cause of this disease is still unknown. The authors report a case of a 37-yar old woman with Kikuchi-Fujimoto disease and systemic lupus erythematosus (SLE). Serologic testing for HHV-6 antibodies revealed an active infection. An excised cervical lymph node contained HHV-6 genome demonstrated by using in situ hybridization. Active HHV-6 infection should be considered in Kikuchi-Fujimoto disease.- - - - - - - - - - ranking = 5keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
9/26. Kikuchi's disease in systemic lupus erythematosus: an independent or dependent event?The authors describe necrotizing histiocytic lymphadenitis (Kikuchi's disease) in association with systemic lupus erythematosus (SLE). To our knowledge this is the first case report where SLE preceded Kikuchi's disease. Whether Kikuchi's disease is an independent event or directly connected with SLE is discussed.- - - - - - - - - - ranking = 5keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
10/26. Lupus lymphadenitis: report of a case with immunohistologic studies on frozen sections.A case of lupus lymphadenitis with frozen section immunohistologic studies is presented. Clinically, the patient had well-documented systemic lupus erythematosus (SLE) when rapid development of generalized lymphadenopathy raised the possibility of a diagnosis of malignant lymphoma. Histologically, the findings of paracortical foci of necrosis and hematoxylin bodies were diagnostic of SLE. granulocytes were absent. Monoclonal antibodies applied to frozen sections demonstrated two predominant cell populations within and surrounding the paracortical zones of necrosis: OKM1 , Leu-M1 histiocytes and OKT8 , Leu-4 T cytotoxic/suppressor cells. In the lymph node not involved by necrosis, lymphoid follicles were composed of polytypic B cells and the interfollicular regions of T cells. Leu-3a , Leu-4 T helper/inducer cells outnumbered T cytotoxic/suppressor cells in a 3:1 ratio. Since lupus lymphadenitis may closely resemble histiocytic necrotizing lymphadenitis of Kikuchi and Fujimoto, particularly if hematoxylin bodies are not found, we compared the findings in this case with findings of cases of histiocytic necrotizing lymphadenitis of Kikuchi and Fujimoto reported in the literature. The immunologic findings in both diseases are similar. We conclude that immunologic studies using frozen sections are probably of no help in differentiating between these two disorders when histologic findings are not conclusive.- - - - - - - - - - ranking = 1.1050138098561keywords = lupus erythematosus, erythematosus, systemic lupus erythematosus, lupus, systemic lupus (Clic here for more details about this article) |
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