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Effectiveness of cyclosporine as a treatment for steroid-resistant Cronkhite-Canada syndrome; two case reports

  • Kohei Yamakawa1,
  • Takuya Yoshino1,
  • Kotaro Watanabe1,
  • Koichiro Kawano1,
  • Akira Kurita1,
  • Naomi Matsuzaki2,
  • Yoshiaki Yuba2 and
  • Shujiro Yazumi1Email author
BMC GastroenterologyBMC series – open, inclusive and trusted201616:123

https://doi.org/10.1186/s12876-016-0541-1

Received: 1 April 2016

Accepted: 26 June 2016

Published: 6 October 2016

Abstract

Background

Cronkhite-Canada syndrome (CCS) is a rare non-inherited disorder, characterized by gastrointestinal polyposis and ectodermal changes. The pathophysiology remains unclear. Treatment with corticosteroids is considered the mainstay treatment because of its high efficacy. However, some patients have steroid-resistant CCS. The therapeutic strategy for steroid-resistant CCS is not yet established. We report two cases with steroid-resistant CCS that were effectively treated with cyclosporine (CyA). We evaluated the therapeutic strategy for steroid-resistant CCS based on reviews of previous reports.

Case presentation

Our patients with CCS were first treated with prednisolone. No clinical response was noted, and treatment with CyA was initiated. After beginning CyA treatment, both clinical symptoms and polyposis markedly improved. Up to the present, 55 cases of CCS treated with corticosteroids and their response were reported. Out of the 57 patients, including our 2 cases, 9 (16 %) did not respond clinically to corticosteroids. In 7 of the 9 steroid-resistant cases, the prognosis after corticosteroids treatment was described. In 5 of the 7 steroid-resistant cases, immunosuppressive treatments induced remission. In 4 of these 5 cases, moreover, the key drug of treatments was calcineurin inhibitor.

Conclusions

Treatment with calcineurin inhibitor, such as CyA, could be a potential option for steroid-resistant CCS.

Keywords

Cronkhite-Canada syndrome Cyclosporine Steroid-resistance Intestinal polyposis Case report

Background

Cronkhite-Canada syndrome (CCS), first reported by Cronkhite and Canada in 1955 [1], is a rare non-inherited disorder characterized by gastrointestinal polyposis accompanied by malabsorption and ectodermal changes, such as alopecia, onychodystrophy, and hyperpigmentation.

The pathophysiology of CCS remains unclear, despite many previous reports [15]. Because corticosteroid treatment for CCS is reported to be highly effective, it is considered the mainstay treatment for CCS. A recent study demonstrated the expression of autoimmune-related IgG4 antibody in CCS polyps [2]. The histological findings and response to immunosuppressive treatments suggested that immune response played an important role in the pathophysiology of CCS, and that a part of CCS might be one of IgG4-related disease. Although approximately 90 % of patients with CCS respond to corticosteroids, however, the remaining patients are refractory to corticosteroid treatment [2]. The therapeutic strategy for steroid-resistant CCS is not yet established. Here we report two cases with steroid-resistant CCS that were effectively treated with cyclosporine (CyA).

Case presentation

Case 1

A 75-year-old Japanese woman was admitted to our hospital with watery diarrhea and dysgeusia for two months, and alopecia for three weeks (Fig. 1a). Laboratory findings included hypoproteinemia (albumin: 2.9 g/dl, cholinesterase: 186 U/l, total cholesterol: 117 mg/dl) and pancytopenia (hemoglobin: 6.6 g/dl, platelet count: 1.9 × 104 /μl, white blood cell count: 2700 /μl). The serum concentration of IgG and IgG4 (IgG 626 mg/dl, IgG4 43.5 mg/dl) was normal. Endoscopic findings revealed multiple reddish inflammatory polyps and edematous adjacent mucosa in the stomach, duodenum, terminal ileum, and colon (Fig. 2a and b). Histologic findings of polyps revealed prominent cystic dilation of the crypts and expanded inflamed lamina propria, showing few IgG4-positive plasma cells in the polyps. Moreover, bone marrow biopsy showed hypercellularity, 0.3 % of blast cells and a normal karyotype. Based on these clinical findings, CCS concomitant with myelodysplastic syndrome (MDS) was diagnosed. MDS was classified as refractory anemia according to French American British classification, and the International Prognostic Scoring System score was low. Despite treatment with prednisolone (PSL) at a daily dose of 0.6 mg/kg (30 mg) for 4 weeks, no clinical response was noted. Although the daily dose of PSL was increased to 1.0 mg/kg (50 mg), any clinical symptoms didn’t improve. This patient was regarded as steroid-resistant CCS who had ongoing active disease despite continuous treatment with systemic corticosteroids referring to previous report of steroid-refractory inflammatory bowel disease [6]. Considering the efficacy of CyA for MDS, CyA treatment was initiated orally at a trough concentration of approximately 200 ng/ml. After beginning CyA treatment, her symptoms and laboratory data, including pancytopenia, improved (Figs. 1b and 3a). PSL was gradually tapering and discontinued at 9.5 months after initiating PSL treatment. Endoscopic findings indicated the disappearance of several gastrointestinal polyps 18 months after beginning CyA treatment (Fig. 2c and d). For 52 months with CyA, there was no recurrence of symptoms, hypoproteinemia and polyps, and no incidence of gastrointestinal cancer.
Fig. 1

Face photos in Case 1. a Alopecia of not only the scalp, but also the eyebrows, was observed on admission. b Alopecia improved markedly after treatment with CyA

Fig. 2

Endoscopic images in Case 1. The initial gastrointestinal endoscopy showed multiple reddish inflammatory polyps and edematous adjacent mucosa in the stomach (a) and colon (b). The endoscopy 18 months after treatment with CyA revealed marked improvement in many polyps in the stomach (c) and colon (d)

Fig. 3

Clinical course in Case 1 and Case 2. a In Case 1, treatment with PSL at a daily dose of 0.6 mg/kg (30 mg) was initiated. Because of no clinical response to PSL 0.6 mg/kg, the dose of PSL was increased to at a daily dose of 1.0 mg/kg (50 mg). Because intensifying the dose of PSL wasn’t effective, CyA treatment was induced. After beginning CyA treatment, her symptoms and laboratory data, including platelet count, markedly improved, and blood transfusion was no longer needed. b In Case 2 with the high serum IgG4 level, treatment with PSL at a daily dose of 0.6 mg/kg (40 mg) and total parenteral nutrition was initiated. After initiating PSL treatment, the serum IgG4 level decreased. However, clinical symptoms were exacerbated and nutrition condition didn’t improve. Therefore, CyA treatment was induced. After beginning CyA treatment, his symptoms and laboratory data markedly improved, and CyA treatment was continued orally at a trough level of 200 ng/ml. After beginning CyA treatment, the serum IgG4 level decreased from 638 mg/dl to 97.0 mg/dl

Case 2

A 50-year-old Japanese man presented with watery diarrhea and hyperpigmentation for two months, dysgeusia and abdominal pain for two weeks, and a 10-kg weight loss. Physical examination revealed onychatrophia and hyperpigmentation. Laboratory data revealed hypoproteinemia (albumin: 2.7 g/dl, cholinesterase: 128 U/l, total cholesterol: 108 mg/dl) and elevated IgG and IgG4 concentrations (IgG 1630 mg/dl, IgG4 638 mg/dl). Endoscopic findings revealed numerous polyps in the stomach, duodenum, and colon (Fig. 4a and b). Histologic findings of the polyps indicated prominent cystic dilated crypts and mixed inflammatory infiltrate with eosinophils. Moreover, IgG4-positive plasma cells were increased in the lamina propria (50 labeled cells per high-power field [HPF]; Fig. 5a, b, c and d). CCS was diagnosed based on those findings. Treated with PSL at a daily dose of 0.6 mg/kg (40 mg) for 4 weeks, the serum IgG4 concentration markedly decreased. However, his abdominal symptoms worsened. Therefore, CyA treatment was initiated intravenously at a blood concentration of 400 ng/ml and PSL was tapered 4 weeks after initiating PSL treatment referring to previous report [7]. After beginning CyA treatment, his symptoms and laboratory data markedly improved (Fig. 3b). CyA treatment was continued orally at a trough concentration of approximately 200 ng/ml, and PSL was discontinued at 8.8 months after initiating PSL treatment. Finally, the serum IgG4 concentration decreased from 638 mg/dl to 97.0 mg/dl. Endoscopic findings revealed a reduction in gastrointestinal polyps 8 months after initiating CyA treatment (Fig. 4c and d). Moreover, few IgG4-positive plasma cells were found in lamina propria of the polyps and adjacent mucosa (Fig. 5e and f).
Fig. 4

Endoscopic images in Case 2. The initial gastrointestinal endoscopy revealed numerous polyps in the stomach (a) and colon (b). The number of gastric (c) and colon (d) polyps was markedly reduced 8 months after initiating CyA treatment

Fig. 5

Histologic findings of the colonic polyp biopsy specimen in Case 2. Histologic findings demonstrated the prominent cystic dilation of the crypts (a) (hematoxylin and eosin stain; magnification × 40). Moreover, a mixed inflammatory infiltrate with prominent eosinophils was found (b) (hematoxylin and eosin stain; magnification × 400). IgG-positive plasma cells numbered 60/HPF (c) (IgG-immunostaining; magnification × 400). In the same field, the high number of IgG4-positive plasma cells was found (50 labeled cells per HPF) (83 % IgG4/IgG plasma cells) (d) (IgG4-immunostaining; magnification × 400). Few IgG- and IgG4-positive plasma cells were found after treatment with CyA (e) (IgG-immunostaining; magnification × 400), (f) (IgG4-immunostaining; magnification × 400)

Discussion

CCS is a progressive disease with various courses and a 5-year mortality rate was greater than 50 % [3]. To improve the poor prognosis of CCS, various treatments have been proposed, such as nutritional support, antibiotics, corticosteroids, immunomodulators, biologics, and surgery [4]. Corticosteroids are reported to be highly effective for treating CCS [2, 5]. The prognosis after treatment with corticosteroids, however, is unknown. In our cases, no clinical response was found despite corticosteroids treatment, although the serum IgG4 concentration decreased after initiating corticosteroids treatment in Case 2. CyA treatment could dramatically improve clinical symptoms and endoscopic findings, and maintain remission for a long time after discontinuing corticosteroids. Therefore, CyA treatment was considered effective for our both cases, although the possibility of the delayed response to steroid could not be denied completely.

A PubMed review of the English literature revealed 55 cases of CCS treated with corticosteroids for which the response was clearly described. Of the 57 patients, including our 2 cases, a symptomatic response was reported for 48 (84 %). On the other hand, the remaining 9 patients (16 %) did not respond clinically to corticosteroids. (Table 1) [2, 4, 711]. Among the 9 steroid-resistant cases, 7 cases described the clinical course after the treatment with corticosteroids and 2 cases didn’t. Out of these 7 patients, five could achieve clinical remission by immunosuppressive treatments (four patients: calcineurin inhibitor, one patient: infliximab), one received colectomy, and last one died without additional treatment.
Table 1

Case reports regarding steroid-resistant CCS

Case

Age /Sex

Previoius Treatment

Next Treatment

Mentenance treatment

Follow-up duration (month)

Prognosis

Reference /year

1

57/M

Corticosteroids Azathioprine Ileocecal resection

Infliximab

Infliximab

36

Symptom: Remission Polyp: Remission

[4] /2014

2

71/M

Prednisolone

Cyclosporine

Azathioprine

23

Symptom: Remission Polyp: ND

[7] /2014

3

42/M

Prednisolone

Colectomy

nothing

6

Symptom: Remission Polyp: Remission

[8] /2013

4

ND

Prednisolone

ECP

ND

ND

Symptom: ND Polyp: ND

[2] /2012

5

50/M

Prednisolone

Colectomy

ND

ND

Symptom: ND Polyp: ND

[9] /2012

6

80/M

Prednisolone

Nothing

  

Dead

[10] /2008

7

44/M

Prednisolone

Tacrolimus Azathioprine

Azathioprine

18

Symptom: Remission Polyp: Remission

[11] /2006

8

75/F

Prednisolone

Cyclosporine

Cyclosporine

52

Symptom: Remission Polyp: Remission

Case1

9

50/M

Prednisolone

Cyclosporine

Cyclosporine

8

Symptom: Remission Polyp: Remission

Case2

ND not described, ECP endoscopic cyclophotocoagulation

An autoimmune mechanism has been more strongly suggested to underlie the pathophysiology of CCS since a recent study showed that IgG4-positive plasma cells infiltrated the lamina propria in the polyps of patients with CCS (positive IgG4 immunostaining [>5 cells/HPF] in 22 (52 %) of 42 polyps from 13 CCS patients) [2]. A basic research reported that activation of Toll-like receptors (TLRs) in basophils of patients with IgG4-related diseases induced a large amount of IgG4 by B cells, this enhancement of IgG4 production was associated with B cell activating factor (BAFF) and IL-13 [12]. In our Case 2, the high serum concentrations of IgG4 and the high number of IgG4-positive plasma cells in gastrointestinal polyps were detected before CyA treatments. Additionally, both the serum concentrations of IgG4 and the number of IgG4-positive plasma cells in gastrointestinal polyps could improve after PSL and CyA treatments. Previous and our data suggest that a part of CCS would be the IgG4-related disease due to IgG4 producing B cells with BAFF and IL-13 production through immune response, particularly innate immune response.

Although those findings regarding IgG4 expression weren’t found in our Case 1, concomitant MDS was observed in our Case 1. Previously, Suzuki et al. also reported a CCS case associated with MDS [13]. The incidence rate of MDS in CCS patients was unclear, whereas several retrospective studies and a recent cohort study have demonstrated the high incidence rate (10–28 %) of autoimmune diseases, such as hypothyroidism and rheumatoid arthritis, in patients with MDS [1417]. Thus, there is the strong association between autoimmune diseases and MDS. Surprisingly, this cohort study reported that MDS patients with autoimmune diseases had significantly better clinical outcome including overall survival rate and leukemia transformation rate compared to those without autoimmune diseases [17]. In our Case 1, MDS concomitant with CCS was classified as low risk based on the International Prognostic Scoring System score, and the prognosis was expected to be good. These data also suggested that CCS might be autoimmune disease. Furthermore, aggressive immunosuppressive treatments in MDS with autoimmune diseases were reported to be effective for not only controlling autoimmune phenomena but also leading to hematological response [14]. Taking these data into account, immunosuppressive treatments, particularly CyA, would be reasonable for CCS concomitant with MDS, like our Case 1.

According to those data, the immunological disorder would be involving in the pathophysiology of CCS. Therefore, immunosuppressive treatments with calcineurin inhibitor, such as CyA, should be considered as a treatment for patients with steroid-resistant CCS, although our gastroenterologists need pay attention to the risk of adverse events, such as severe infection and malignancies.

Conclusion

We report that CyA treatment was effective for two patients with steroid-resistant CCS, and suggest that the treatment with calcineurin inhibitor, such as CyA, could be a therapeutic option for steroid-resistant CCS.

Abbreviations

BAFF: 

B cell activating factor

CCS: 

Cronkhite-Canada syndrome

CyA: 

Cyclosporine

MDS: 

Myelodysplastic syndrome

PSL: 

Prednisolone

TLRs: 

Toll-like receptors.

Declarations

Acknowledgement

This work was supported by the Japan Society for the Promotion of Science (JSPS) Grants-in-aid for Scientific Research [25860532 to T.Y].

Availability of data and materials

The datasets supporting the conclusions of this article are included within the article and its Additional file 1.

Authors’ contribution

Enclosed is a manuscript by Yamakawa et al. entitled, “Effectiveness of cyclosporine as a treatment for steroid-resistant Cronkhite-Canada syndrome; two case reports”. All authors have approved submission of this manuscript, and the material has not been previously reported. KY extracted and analyzed clinical data, and drafted the manuscript. KW, KK, and AK also participated in extracting and analyzing clinical data. NM and YY participated in analyzing pathological data. TY revised this manuscript critically for important intellectual content. SY revised this manuscript critically for important intellectual content, and gave final approval of the version to be published. All authors read and approved the final manuscript.

Competing interests

The authors declare that they have no competing interests.

Consent for publication

Written informed consent for publication of their clinical details and clinical images was obtained from the patients. A copy of the consent form is available for review by the Editor of this journal.

Ethics approval and consent to participate

This case report was conducted according to the principles of the Declaration of Helsinki and was reviewed and approved by the Institutional Review Boards at Kitano Hospital (approval number: P16-05-008).

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Authors’ Affiliations

(1)
Division of Gastroenterology and Hepatology, Digestive Disease Center, Kitano Hospital
(2)
Department of Pathology, Kitano Hospital

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Copyright

© The Author(s). 2016

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