Tracheal Involvement in Crohn Disease: the First Case in Korea

Seunghyun Park; Jongha Park; Hyun-Kuk Kim; Ji Yeon Kim; So Chong Hur; Ju Hyung Lee; Jae Won Jung; Juwon Lee

doi:10.5946/ce.2015.059

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Case Report Tracheal Involvement in Crohn Disease: the First Case in Korea: Seunghyun Park¹, Jongha Park¹, Hyun-Kuk Kim², Ji Yeon Kim³, So Chong Hur¹, Ju Hyung Lee¹, Jae Won Jung¹, Juwon Lee¹; Clinical Endoscopy 2016;49(2):202-206.
DOI: https://doi.org/10.5946/ce.2015.059
Published online: February 16, 2016

¹Division of Gastroenterology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea

²Division of Pulmonology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea

³Department of Pathology, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea

Correspondence: Jongha Park Division of Gastroenterology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, 875 Haeun-daero, Haeundae-gu, Busan 48108, Korea Tel: +82-51-797-0218, Fax: +82-51-797-0298, E-mail: H00095@paik.ac.kr

• Received: April 13, 2015 • Revised: October 19, 2015 • Accepted: November 14, 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Abstract
INTRODUCTION
CASE REPORT
DISCUSSION
NOTES
REFERENCES

This article has been corrected. See "Tracheal Involvement in Crohn Disease: the First Case in Korea" in Volume 49 on page 310.

Abstract

Respiratory involvement in Crohn disease (CD) is rare condition with only about a dozen reported cases. We report the first case of CD with tracheal involvement in Korea. An 18-year-old woman with CD was hospitalized because of coughing, dyspnea, and fever sustained for 3 weeks. Because she had stridor in her neck, we performed computed tomography of the neck, which showed circumferential wall thickening of the larynx and hypopharynx. Bronchoscopy revealed mucosal irregularity, ulceration, and exudates debris in the proximal trachea, and bronchial biopsy revealed chronic inflammation with granulation tissue. Based on these findings, we suspected CD with tracheal involvement and began administering intravenous methylprednisolone at 1 mg/kg per day, after which her symptoms and bronchoscopic findings improved.
Keywords: Crohn disease; Inflammatory bowel diseases; Tracheobronchial involvement

INTRODUCTION

Crohn disease (CD) is a chronic inflammatory disease that mainly affects the gastrointestinal (GI) tract. It may also have various extraintestinal manifestations such as uveitis, arthritis, pyoderma gangrenosum, erythema nodosum, episcleritis, sclerosing cholangitis, and hemolytic anemia [1-3]. Symptomatic tracheobronchial involvement is not common, although CD with chronic bronchitis [4], bronchiectasis [4,5], upper airway obstruction [6,7], granulomatous interstitial pneumonitis, bronchiolitis obliterans [4], granulomatous lung disease [4,8,9], and interstitial lung disease [10] has been reported. This report describes a case of CD with tracheal involvement.

CASE REPORT

An 18-year-old Korean woman was diagnosed with CD 4 months ago. She received prednisolone at 50 mg/day for 1 month; after tapering and discontinuation of prednisolone, mesalazine at 3 g/day was administered for maintenance. She visited a primary clinic because of prolonged purulent coughing, fever, and dyspnea. She had never smoked and had no history of environmental or occupational exposure to agents that might cause respiratory distress. At the time of her visit, the Montreal classification of CD was A2L3B1, and the CD activity index was 71.92. She received antibiotics for 5 days along with symptomatic treatment, but her dyspnea and fever persisted, and stridor was found upon physical examination. She was then referred to our hospital for further evaluation.

A physical examination revealed stridor in her neck. Her blood pressure was 110/70 mm Hg, her heart rate was 100 beats per minute, her body temperature was 36.7o C, and her peripheral capillary oxygen saturation level was 97% (room air). The electrocardiogram and chest radiographs were normal. Laboratory data on admission included the following: white blood cells, 18,770/μL (polymorphonuclear neutrophils, 67.6%; eosinophils 0.4%); hemoglobin, 10.4 g/dL; platelets, 628,000/μL; and C-reactive protein, 5.75 mg/dL. The remaining serum chemistry results and the coagulation profile were normal. Computed tomography of the neck performed to determine the cause of the stridor and cough revealed circumferential wall thickening of the larynx and hypopharynx (Fig. 1).

We initially thought that the patient had bacterial tracheitis and therefore administered antibiotics (amoxicillin/clavulanate, 3.6 g/day) for 4 days. However, her symptoms and stridor did not improve. Flexible fibrotic bronchoscopy (FFB) showed mucosal irregularity, edema, and a yellowish patch-like mucosal lesion on the proximal part of trachea (Fig. 2). The results of bacterial culturing, acid-fast bacilli staining of the culture, and tuberculosis polymerase chain reaction (TB-PCR) assays of the bronchial washing fluid were negative, as were those of interferon-gamma release assays (IGRAs) for Mycobacterium tuberculosis. A bronchoscopic biopsy showed non-specific inflammatory reactions including dense inflammatory cell infiltration, necrotic detritus due to tissue destruction, and granulation tissue indicating healing of damaged tissue. However, the biopsy specimen contained no granulomas, which are relatively well known histopathologic features of CD (Fig. 3). Owing to the negative results of the tests, we suspected CD with tracheal involvement and therefore began administering intravenous methylprednisolone at 1 mg/kg per day.

Four days later, her cough and dyspnea were relieved, and the fever and stridor also disappeared. After 2 months, bronchoscopy revealed marked improvement in the tracheal lesion (Fig. 4). The patient was treated with an oral corticosteroid for 4 weeks, and more than 1 year later, there has been no recurrence of the CD-associated lung involvement.

DISCUSSION

We describe the first case in Korea of tracheobronchial involvement in CD, which is rare even globally. Since Kraft et al. [5] reported bronchopulmonary involvement in inflammatory bowel disease in 1976, only 13 cases including the present case (seven men and six women, ages 18 to 59 years; average age, 28 years) [3] have been reported, and the patient in our case is the youngest (Table 1).

In the present case, diseases that could cause similar clinical symptoms (e.g., bacterial tracheitis, tracheal tuberculosis, and sarcoidosis) as tracheobronchial involvement were excluded. Bacterial tracheitis was eliminated owing to negative results in the bacteriologic studies and unresponsiveness to an antibacterial agent. Mycobacterial infection was excluded for the following reasons: no growth of mycobacteria in repeated samplings of sputum and the bronchial washing fluid, negative results in an IGRA and nested TB-PCR, and the absence of caseating granulomas. Sarcoidosis was ruled out because there was no evidence of extrapulmonary sarcoid involvement or typical sarcoid granulomas in bronchial biopsies.

Tracheobronchial involvement of CD is rare, although several cases have been reported [1,2,5,6,8,9,11-13]. Similar to previous reports [2,6,9,13,14] and to the colonoscopic findings for CD, the bronchoscopic findings in our case were mucosal irregularity, elevation, edema, and the presence of a yellowish patch-like lesion. In the present case, as in previous cases, the pathologic findings of the bronchial biopsy were epithelial and subepithelial infiltrates of diverse types of inflammatory cells including neutrophils, macrophages, lymphocytes, and plasma cells [2,6,9,13,14]. According to Asami et al. [3], bronchoscopic and pathologic findings such as these indicate that tracheobronchial inflammation results from the activation of macrophages and T lymphocytes, as does colonic inflammation. Previous reports also suggest that a common antigen triggers mucosal immune responses in both the GI tract and airway [2,6,9,13,14]. In our case, when the tracheal involvement in CD was exacerbated, the colonic condition of the patient was stabilized. Thus, the clinical courses of tracheobronchial involvement and GI involvement appear to be dissimilar [3,11]. This may be because the inflammatory response is amplified differently in the respiratory tract and GI tract, even though it may be triggered by the same antigen in both locations [3,11]. Patients are usually diagnosed with CD before presentation of pulmonary manifestations; however, airway involvement has been reported in patients without a diagnosis of CD [15]. Pathologically, airway infiltration by inflammatory cells and mucosal ulceration may occur. However, non-caseating granulomas are not always present, as in cases of colon involvement in CD [4,6]. In our case, there was only granulation tissue, not granulomas.

It has been reported that both inhaled and systemic corticosteroids effectively treat upper airway involvement in CD. Six previous cases were treated with oral steroids [2,5,8,12], two with inhaled steroids [3,9] and four with oral and inhaled steroids (Table 1) [1,6,11,13]. Both respiratory and GI symptoms were improved in all patients receiving steroids regardless of the method of administration [3]. In our case, we used intravenous steroids, because the patient refused oral steroids owing to nausea, abdominal pain, and a sore throat; she also had problems using inhaled corticosteroids. We began administering intravenous methylprednisolone at 1 mg/kg per day 4 days after detecting tracheal involvement; her symptoms improved thereafter, and after 2 months, the FFB findings were markedly improved.

The clinical course of tracheobronchial involvement in CD tends to be more responsive to corticosteroids than does lower respiratory tract involvement such as bronchiectasis in CD [4]. This is especially true when high dose systemic corticosteroids are administered early in the course of upper respiratory tract involvement [16]. Clinical sequelae of residual tracheal stenosis and respiratory failure have been reported with delayed diagnosis and consequent delayed treatment with systemic steroids [2,6,12].

We report the first Korean case of tracheobronchial involvement in CD and show a dramatic response to systemic steroids. Our case suggests that pulmonary involvement should be considered in CD patients with unexplained respiratory symptoms.

Conflicts of Interest: The authors have no financial conflicts of interest.

Fig. 1.

(A, B) Computed tomography of neck showed abrupt narrowing of proximal trachea (arrows).

Fig. 2.

Flexible bronchoscopy showed mucosal irregularity, edema, and yellowish patch-like mucosal lesion on the proximal part of trachea.

Fig. 3.

Bronchoscopic biopsy. (A) Dense inflammatory cell infiltration in the mucosa and submucosa of trachea (H&E stain, ×10). (B) Granulation tissue representing healing of damaged tissue (H&E stain, ×100).

Fig. 4.

Flexible bronchoscopy findings after treatment show marked improvement.

Table 1.

The Previous Reports of Tracheobronchial Involvement in Patients with Crohn Disease

Study	Age	Sex	Type of involvement	Treatment	Response to treatment
Kelly et al. (1979) [12]	25	M	Laryngitis	Systemic CS	Complete clearance of symptoms, then steroid-dependence
	22	M	Laryngitis	Systemic CS	Some initial improvement, then upper airway obstruction requiring tracheotomy
Kuźniar et al. (2000) [6]	29	M	Tracheobronchitis	ICS & systemic CS	Improvement of tracheobronchitis, persistence of tracheobronchial deformity
Kraft et al. (1976) [5]	59	F	Tracheobronchitis	Systemic CS	Marked improvement
Iwama et al. (1991) [9]	26	M	Tracheobronchitis	ICS	Dramatic improvement
Lemann et al. (1987) [8]	24	F	Tracheobronchitis	Systemic CS	Dramatic improvement
	19	F	Tracheobronchitis	Systemic CS	Marked improvement
Plataki et al. (2006) [11]	34	F	Tracheobronchitis	ICS & systemic CS	Dramatic improvement
Lamblin et al. (1996) [13]	37	M	Tracheobronchitis	ICS & systemic CS	Dramatic improvement
Asami et al. (2009) [3]	19	F	Tracheobronchitis	ICS	Dramatic improvement
Henry et al. (2001) [2]	23	F	Tracheobronchitis	Systemic CS	Marked improvement
Spira et al. (1998) [1]	30	M	Tracheobronchitis	ICS & systemic CS	Marked improvement
Present study	18	F	Tracheobronchitis	Systemic CS	Dramatic improvement

CS, corticosteroid; ICS, inhaled corticosteroid.

REFERENCES

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Figure & Data

REFERENCES

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Tracheal Involvement in Crohn Disease: the First Case in Korea

Clin Endosc. 2016;49(2):202-206. Published online February 16, 2016

DOI: https://doi.org/10.5946/ce.2015.059

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Figure

Tracheal Involvement in Crohn Disease: the First Case in Korea

Fig. 1. (A, B) Computed tomography of neck showed abrupt narrowing of proximal trachea (arrows).

Fig. 2. Flexible bronchoscopy showed mucosal irregularity, edema, and yellowish patch-like mucosal lesion on the proximal part of trachea.

Fig. 3. Bronchoscopic biopsy. (A) Dense inflammatory cell infiltration in the mucosa and submucosa of trachea (H&E stain, ×10). (B) Granulation tissue representing healing of damaged tissue (H&E stain, ×100).

Fig. 4. Flexible bronchoscopy findings after treatment show marked improvement.

Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Tracheal Involvement in Crohn Disease: the First Case in Korea

Study	Age	Sex	Type of involvement	Treatment	Response to treatment
Kelly et al. (1979) [12]	25	M	Laryngitis	Systemic CS	Complete clearance of symptoms, then steroid-dependence
	22	M	Laryngitis	Systemic CS	Some initial improvement, then upper airway obstruction requiring tracheotomy
Kuźniar et al. (2000) [6]	29	M	Tracheobronchitis	ICS & systemic CS	Improvement of tracheobronchitis, persistence of tracheobronchial deformity
Kraft et al. (1976) [5]	59	F	Tracheobronchitis	Systemic CS	Marked improvement
Iwama et al. (1991) [9]	26	M	Tracheobronchitis	ICS	Dramatic improvement
Lemann et al. (1987) [8]	24	F	Tracheobronchitis	Systemic CS	Dramatic improvement
	19	F	Tracheobronchitis	Systemic CS	Marked improvement
Plataki et al. (2006) [11]	34	F	Tracheobronchitis	ICS & systemic CS	Dramatic improvement
Lamblin et al. (1996) [13]	37	M	Tracheobronchitis	ICS & systemic CS	Dramatic improvement
Asami et al. (2009) [3]	19	F	Tracheobronchitis	ICS	Dramatic improvement
Henry et al. (2001) [2]	23	F	Tracheobronchitis	Systemic CS	Marked improvement
Spira et al. (1998) [1]	30	M	Tracheobronchitis	ICS & systemic CS	Marked improvement
Present study	18	F	Tracheobronchitis	Systemic CS	Dramatic improvement

Table 1. The Previous Reports of Tracheobronchial Involvement in Patients with Crohn Disease

CS, corticosteroid; ICS, inhaled corticosteroid.