- Case report
- Open Access
- Open Peer Review
This article has Open Peer Review reports available.
Kikuchi Fujimoto disease associated with cryptogenic organizing pneumonia: case report and literature review
© Hua and Zhu; licensee BioMed Central Ltd. 2010
Received: 25 September 2009
Accepted: 11 March 2010
Published: 11 March 2010
The association of Kikuchi Fujimoto disease (KFD) with cryptogenic organizing pneumonia (COP) is extremely rare. We report a case of simultaneous diagnosis of KFD and COP.
A 33-year-old male presented with a 1-month cough illness and fever lasting for 5 days. The chest radiograph revealed double lower lobe infiltrate, which was unresponsive to antibiotics. A cervical lymph node was first found in the development of this disease. Bronchoscopy, bronchoalveolar lavage and lung biopsy established the diagnosis of COP, while a lymph node biopsy was consistent with KFD. The patient improved on steroids.
KFD and COP are possible part of a disease continuum, rather than separate entities.
Cryptogenic organizing pneumonia (COP) is an interstitial lung disease characterized by intra-alveolar buds of connective tissue . It can be idiopathic or associated with a known underlying disease.
In this case report, we present a 33-year-old man with COP, followed by concomitant Kikuchi Fujimoto disease (KFD). KFD was first described in 1972 by Kikuchi and Fujimoto and others. It is a clinicopathological entity that commonly presents with cervical lymphadenopathy and fever in the absence of an active infectious disease. KFD is a rare histiocytic necrotizing lymphadenitis, which has a benign self-limiting clinical course. Its origin is unknown, but an abnormal autoimmune reaction has been suggested and infection is often considered as an inducing feature .
To the best of our knowledge, this is the first case report of COP and KFD.
A 33-year-old man presented with a 1-month coughing illness and fever that lasted for 5 days. Before admission, the patient experienced expectoration of yellow sputum and antibiotic therapy for 2 weeks. There was no history of fever, rash or respiratory distress, and there was no family history of autoimmune or connective tissue disorders. Respiratory examinations revealed fine crackles in both lungs. Examination of other systems was unremarkable.
The laboratory investigation showed hemoglobin 140 g/L, leukocytes 3.9 × 109/L with a normal differential count, platelets 142 × 109/L, C-reactive protein 1.2 mg/L, and an erythrocyte sedimentation rate (ESR) of 14 mm/h. Heterophil agglutination trial was negative. Serum biochemistry findings including liver and renal function were within normal limits. The results of cellular immunity assay showed a decrease in the CD4/CD8 ratio (0.63). Test results were negative for toxoplasma, cytomegalovirus (CMV), rubella, Epstein-Barr virus (EBV), human herpes virus type 1 and human immunoddficiency virus (HIV). Also rheumatological and immunological tests were normal. These tests included antinuclear antibody, rheumatoid factor, antistreptolysin O, antineutrophil cytoplasmic antibody and the levels of serum C3 and C4 as well as IgG, IgA, IgE and IgM.
With an initial diagnosis of bilateral pneumonia, moxifloxacin and cefepime were initiated. Eleven days after admission, a solitary lymph node was first found in the right anterior cervical chain. The lymph node was tender and measured 3 cm in diameter. At this point, the patients had leucopenia (4.3 × 109/L) and lymphopenia (0.8 × 109/L). The ESR was slightly accelerated to 40 mm/h. The serum C-reactive protein level was normal. The serum galactomannan enzyme immunoassay and 1, 3 β-glucan assays for diagnosis of invasive fungal infection were negative. Findings were negative for an intradermal tuberculin test, as well as for sputum and urine tests for the Mycobacterium tuberculosis. The serological test for coxsackie B virus suggested infection in the recent past.
Bronchoalveolar lavage fluid showed no increase in eosinophil or lymphocyte counts, but a decrease in the CD4/CD8 ratio (0.52). Lung biopsy by video-assisted thoracoscopy was performed 12 days post-admission and revealed granulation tissue in the alveolar spaces, with associated marked alveolar wall thickening and frequent metaplasia of bronchiolar and alveolar cells (Fig. 2B). The staining of reticular fiber, PAS and hexamethylenetetramine silver were negative. These findings of BAL and lung biopsy were compatible with COP [4, 5].
After the diagnosis of KFD associated with COP, 45 mg/day prednisone was administered, with a gradual improvement in symptoms. A second HRCT was done, which showed marked resolution of the alveolar exudates (Fig. 1B), and cervical lymphadenopathy had resolved 8 days post-treatment. At 12 weeks follow-up, the patient remained well, with no other symptoms or lymph node enlargement.
COP is a rare disease. The characteristic clinical features of COP are flu-like illness, followed by progressive dyspnea, patchy infiltrates on chest radiography and CT, a restrictive spirometric pattern with diffusion impairment. And, the histopathological pattern of COP is intraluminal organization, predominantly within the alveolar ducts and alveoli .
KFD was first described in 1972 by the Japanese pathologists Kikuchi and Fujimoto as a benign, self-limited syndrome of necrotizing lymphadenitis with a characteristic histopathological appearance that mimics malignant lymphoma. It typically presents as localized lymphadenopathy, predominantly in the cervical region, accompanied by fever and leukopenia in up to 50% of cases .
Reports in the literature of an association between respiratory manifestation and KFD are not frequent. In 1990, Tanaka et al.  reported one patient with KFD who presented with respiratory symptoms, and T-lymphocyte alveolitis was diagnosed. Additionally, antinuclear antibodies were positive, and antibodies against human T-lymphotrophic virus type 1 (HTLV-I) were false positive. These findings suggested an immunological abnormality. Cervical lymph node swelling and infiltrative shadow on chest X-ray film improved with steroid therapy.
Several suggestions on the etiology of COP or KFD have been raised. Certain microorganisms (EBV, HTLV-I, herpes human 6 virus, Toxoplasma, parvovirus B19, CMV, Brucella, Yersinia enterocolitica and parainfluenza virus) have been suggested as the causative agents of the disease, and initiate a hyper-immune response of the T cells and histiocytes to the infectious agents. Positive serological test for Coxsackie B virus in this case might be same mechanism. However, none of these possibilities have been definitively proven [9, 10]. In addition, many cases of KFD in patients with lupus have been reported. KFD has also been reported in other autoimmune diseases, including Still disease , rheumatoid arthritis , polymyositis , and mixed connective tissue disease .
Similarly, COP has been described in various autoimmune diseases , primarily in rheumatoid arthritis  but also in systemic lupus erythematosus and polymyositis . It is clear that an immunological abnormality is the common pathogenesis of COP and KFD. Although the precise mechanism may be different, response of corticosteroids on this case indicated that the pathogenesis of both diseases may be immune-mediated. Therefore, the concomitant appearance of COP and KFD probably reflects two diseases that are part of a continuum, rather than separate entities.
In summary, we presented a case of COP that was diagnosed concurrently with KFD. The potential etiology of concomitant COP and KFD in our case could have been a nonspecific reaction to lung injury, unclear immunologically mediated response, occult virus infection, or immunosuppression. Further studies on a series of COP patients are necessary to elucidate this mechanism.
Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
- Lohr RH, Boland BJ, Douglas WW, Dockrell DH, Colby TV, Swensen SJ, Wollan PC, Silverstein MD: Organizing pneumonia - Features and prognosis of cryptogenic, secondary, and focal variants. Arch Intern Med. 1997, 157 (12): 1323-1329. 10.1001/archinte.157.12.1323.View ArticlePubMedGoogle Scholar
- Menasce LP, Banerjee SS, Edmondson D, Harris M: Histiocytic necrotizing lymphadenitis (Kikuchi-Fujimoto disease): Continuing diagnostic difficulties. Histopathology. 1998, 33 (3): 248-254. 10.1046/j.1365-2559.1998.00469.x.View ArticlePubMedGoogle Scholar
- Sumiyoshi Y, Kikuchi M, Takeshita M, Ohshima K, Masuda Y, Parwaresch MR: Immunohistologic studies of kikuchis disease. Hum Pathol. 1993, 24 (10): 1114-1119. 10.1016/0046-8177(93)90192-J.View ArticlePubMedGoogle Scholar
- American Thoracic Society/European Respiratory Society International Multidisciplinary Consensus Classification of the Idiopathic Interstitial Pneumonias. This Joint Statement of the American Thoracic Society (ATS), and the European Respiratory Society (ERS) was adopted by the ATS Board of Directors, June 2001 and by The ERS Executive Committee, June 2001. Am J Resp Crit Care. 2002, 165 (2): 277-304.Google Scholar
- Poletti V, Cazzato S, Minicuci N, Zompatori M, Burzi M, Schiattone ML: The diagnostic value of bronchoalveolar lavage and transbronchial lung biopsy in cryptogenic organizing pneumonia. Eur Respir J. 1996, 9 (12): 2513-2516. 10.1183/09031936.96.09122513.View ArticlePubMedGoogle Scholar
- Wells AU: Cryptogenic organizing pneumonia. Sem Resp Crit Care M. 2001, 22 (4): 449-459. 10.1055/s-2001-17387.View ArticleGoogle Scholar
- Kuo TT: Kikuchis disease (histiocytic necrotizing lymphadenitis) - a clinicopathological study of 79 cases with an analysis of histologic subtypes, immunohistology, and dna-ploidy. Am J Surg Pathol. 1995, 19 (7): 798-809.View ArticlePubMedGoogle Scholar
- Tanaka M, Yano T, Ichikawa Y, Kaji M: [A case of subacute necrotizing lymphadenitis with localized interstitial pneumonia]. Nihon Kyobu Shikkan Gakkai Zasshi. 1990, 28 (9): 1234-1238.PubMedGoogle Scholar
- George TI, Jones CD, Zehnder JL, Warnke RA, Dorfman RF: Lack of human herpesvirus 8 and Epstein-Barr virus in Kikuchi's histiocytic necrotizing lymphadenitis. Hum Pathol. 2003, 34 (2): 130-135. 10.1053/hupa.2003.11.View ArticlePubMedGoogle Scholar
- Hollingsworth HC, Peiper SC, Weiss LM, Raffeld M, Jaffe ES: An investigation of the viral pathogenesis of kikuchi-fujimoto disease - lack of evidence for epstein-barr-virus or human herpesvirus type-6 as the causative agents. Arch Pathol Lab Med. 1994, 118 (2): 134-140.PubMedGoogle Scholar
- Cousin F, Grezard P, Roth B, Balme B, Gregoire-Bardel M, Perrot H: Kikuchi disease associated with Still disease. Int J Dermatol. 1999, 38 (6): 464-467. 10.1046/j.1365-4362.1999.00679.x.View ArticlePubMedGoogle Scholar
- Cordier JF: Organizing pneumonia: Cryptogenic and disease associated. Sem Resp Crit Care M. 2003, 24 (5): 595-606. 10.1055/s-2004-815607.View ArticleGoogle Scholar
- Wilkinson CE, Nichol F: Kikuchi-Fujimoto disease associated with polymyositis. Rheumatology. 2000, 39 (11): 1302-1304. 10.1093/rheumatology/39.11.1302.View ArticlePubMedGoogle Scholar
- Pallet N, Aaron L, Larousserie F, Therby A, Dupont B, Viard JP: Kikuchi-Fujimoto disease associated with mixed connective tissue disease. Scand J Rheumatol. 2004, 33 (6): 434-436. 10.1080/03009740410006204.View ArticlePubMedGoogle Scholar
- Epler GR: Bronchiolitis Obliterans Organizing Pneumonia. Arch Intern Med. 2001, 161 (2): 158-164. 10.1001/archinte.161.2.158.View ArticlePubMedGoogle Scholar
- Myers JL, Colby TV: Pathological manifestations of bronchiolitis, constrictive bronchiolitis, cryptogenic organizing pneumonia, and diffuse panbronchiolitis. Clin Chest Med. 1993, 14 (4): 611-622.PubMedGoogle Scholar
- The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2334/10/64/prepub
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.