Severe Crohn disease of the lung following colectomy

Pathophysiological Concepts and Management of Pulmonary Manifestation of Pediatric Inflammatory Bowel Disease

Pulmonary manifestation (PM) of inflammatory bowel disease (IBD) in children is a rare condition. The exact pathogenesis is still unclear, but several explanatory concepts were postulated and several case reports in children were published. We performed a systematic Medline search between April 1976 and April 2022. Different pathophysiological concepts were identified, including the shared embryological origin, “miss-homing” of intestinal based neutrophils and T lymphocytes, inflammatory triggering via certain molecules (tripeptide proline-glycine-proline, interleukin 25), genetic factors and alterations in the microbiome. Most pediatric IBD patients with PM are asymptomatic, but can show alterations in pulmonary function tests and breathing tests. In children, the pulmonary parenchyma is more affected than the airways, leading histologically mainly to organizing pneumonia. Medication-associated lung injury has to be considered in pulmonary symptomatic pediatric IBD patients treated with certain agents (i.e., mesalamine, sulfasalazine or infliximab). Furthermore, the risk of pulmonary embolism is generally increased in pediatric IBD patients. The initial treatment of PM is based on corticosteroids, either inhaled for the larger airways or systemic for smaller airways and parenchymal disease. In summary, this review article summarizes the current knowledge about PM in pediatric IBD patients, focusing on pathophysiological and clinical aspects.

Crohn's disease with pulmonary granuloma in a child: a case report and review of the literature

Crohn's disease (CD) is a chronic granulomatous disease that affects the gastrointestinal system. Additionally, CD has multiple extraintestinal manifestations, and bronchopulmonary manifestations are extremely rare. Pulmonary lesions can occur before the diagnosis of CD; thus, pulmonary manifestations are often overlooked, which leads to misdiagnoses. Herein, we present a case with pulmonary nodules being exhibited before the patient was diagnosed with CD. To the best of our knowledge, only a few cases concerning this phenomenon have been reported. We describe an 11-year-old boy with a two-year history of anemia and without any gastrointestinal symptoms. He did not receive any thorough inspection until arthralgia occurred. Multiple nodules were found in his bilateral lungs via computed tomography scan. Combined with the child's medical history, physical examinations, and all of the investigations, the final diagnosis was CD with pulmonary nodules and arthritis. After 2 months of treatment, the patient's symptoms had significantly improved. To summarize the clinical manifestations, auxiliary examination features, and treatments of CD in children with pulmonary involvement, we also review the relevant characteristics of pulmonary involvement in CD patients. This case indicates the importance of recognizing the pulmonary manifestations of CD. Clinicians should be aware of the possibility of CD when their patients have lung nodules, even in children with no typical manifestations of CD.

Inflammatory bowel disease and the lung in paediatric patients

The prevalence of inflammatory bowel disease (IBD) has increased over the past 20 years. Pulmonary involvement in paediatric IBD is rare but may be missed since the spectrum of symptoms is broad and mimics other diseases. The most important differential diagnoses of pulmonary manifestations of IBD are infections and therapy-related side-effects. There is no gold standard to diagnose respiratory manifestations in children with IBD. Diagnostic tests should be chosen according to history and clinical presentation. Treatment of respiratory manifestations of IBD includes inhaled or oral corticosteroids and initiation or step-up of immunomodulatory IBD therapies.

Pulmonary involvement in paediatric IBD is rare but may be underdiagnosed. The spectrum of symptoms is broad and mimics other diseases. The differentiation between IBD-related and drug-induced pulmonary manifestation can be challenging.https://bit.ly/3uZBvpA

A rare aspect of Crohn's disease: Pulmonary involvement in a child

Crohn's disease (CD), known as the disease of gastrointestinal system, is a granulamatous systemic disorder with extraintestinal manifestations including the respiratory system. The resemblance in the embriological origins and the immunities of both organ systems' mucosae, also the circulating immune complexes and the autoantibodies are accepted as contributing factors. The shift of inflammation may become prominent when the colon is removed after colectomy and independent of the bowel disease activity; pulmonary involvement may be exarbecated. In the pediatric population, CD associated pulmonary involvement is very rare, mainly in the form of subclinical alterations and the data are limited mostly to case reports. Therefore, it is possibly overlooked since the diagnosis relies on suspicion. We represent a 5-year-old CD patient with previous bronchiolitis episodes that might have resulted from CD-associated pulmonary involvement; whom later developed severe pneumonia resulting in acute respiratory distress syndrome and bronchiectasia following a colectomy operation.

Crohn's disease with pulmonary manifestations in children: 2 case reports and review of the literature

Crohn's disease (CD) is a chronic granulomatous disease of unknown etiology that affects primarily the gastrointestinal system but can be associated with extraintestinal manifestations. Latent pulmonary involvement in children with CD has been described, but symptomatic pulmonary disease has rarely been reported in children. In this review, we report two pediatric cases, one with pleural effusion at the time of CD diagnosis and the other with bilateral cavitary lesions in a previously diagnosed CD patient. We review the current literature and summarize the diagnosis and management of pulmonary involvement in CD. Awareness of these pulmonary complications of CD in children may lead to more prompt diagnosis, guide appropriate therapy, and decrease morbidity.