Idiopathic pulmonary haemosiderosis: report of two cases and review of the literature

Celiac disease and idiopathic pulmonary hemosiderosis: A literature review of the Lane-Hamilton Syndrome

Lane-Hamilton syndrome (LHS) presents a medical emergency, with 14% mortality due to Idiopathic Pulmonary Hemosiderosis (IPH) in acute phase. Despite the clinical severity of this entity, there has been no published review in the international literature, resulting in lack of awareness and delayed diagnosis.A rigorous search of international databases yielded a total of 80 LHS cases from January 1971 to August 2020. We analyzed 44 children (8.56±4.72years, 21boys) and 36 adults (33.61±13.41years, 12men), to present the clinical manifestations, radiological and immunological pattern, therapeutic approaches and outcome of LHS. We also elaborated on clinical and laboratory findings' associations to propose diagnostic indexes and clarified differences based on age distribution.Celiac Disease (CD) and IPH diagnosis was made concurrently in 46 patients, whereas in 21 patients the diagnosis of LHS was delayed for 2.5y (3mo-11y). Hemoptysis (n=56, 70%), dyspnea (n=47, 58.8%), anemia (n=72, 90%) and iron deficiency (n=54, 67.5%) were most commonly observed. Medical history revealed recurrent episodes of hemoptysis (n=38) and persistent iron deficiency anemia (n=25) in need of multiple blood transfusions or iron supplementation. Patchy infiltrate opacities to consolidation predominated in children, whereas bilateral diffuse ground glass opacities in adults. Duodenal biopsy was performed in 66 cases (diagnostic 87.8%), BAL in 51 (diagnostic 74.5%) and surgical lung biopsy in 20. Anti-tTG titer was positive in all 24 (54.6%) children and 19 (52.8%) adults that documented this assay. Prednisone or methylprednisolone pulse therapy and GFD were initiated in the acute phase, whereas chronic therapy included GFD, along with long-term prednisone in refractory cases. Three cases with severe respiratory failure or hemodynamic instability were intubated and a further 3 succumbed.A thorough understanding of LHS may reveal further diagnostic indexes and a consensus on therapy guidelines. Screening for CD is essential in all IPH cases for timely recognition and favorable outcome.

Association between idiopathic pulmonary hemosiderosis and celiac disease in pediatric patients: A scoping review of the literature over the past 50 years

INTRODUCTION

Idiopathic pulmonary hemosiderosis (IPH) is a rare cause of diffuse alveolar hemorrhage, the mechanism of which is currently unknown. Nearly one-third of pediatric patients with IPH test positive for Celiac disease (CD) serology. Several hypothetical mechanisms have been proposed to unify the coexistence of these two entities, also referred to as Lane-Hamilton syndrome (LHS).

METHOD

This manuscript is a scoping review of the medical literature. Medline, Embase, and PubMed Central databases were searched between 1971 and 2021 with appropriate search words to identify all cases of pediatric LHS.

RESULTS

A total of 20 manuscripts with 23 pediatric patients with LHS were identified. The mean age was 11 years, and 13/23 (56.5%) of the children were boys. Hemoptysis was present in 57% of patients during diagnosis. Bronchoscopy with bronchoalveolar lavage demonstrating hemosiderin laden macrophages was the primary mode of diagnostic confirmation. Only three patients underwent lung biopsy. Any significant GI symptom was reported in a minority of patients (22%). Iron deficiency anemia on presentation was described in 83% of children. The majority of patients were malnourished. Serology for CD was positive in all patients, as was the histopathologic analysis of the small bowel biopsy. No patients had any other autoantibody positivity. The introduction of gluten free diet (GFD) was associated with a positive response in 20/23 patients.

CONCLUSION

All pediatric patients with IPH should undergo screening for CD. Low serum ferritin in patients with IPH could be suggestive of coexisting CD. Strict GFD should be tried as the initial therapy.

A Review of Clinical and Imaging Features of Diffuse Pulmonary Hemorrhage

OBJECTIVE. The purpose of this article is to review the clinical and imaging features of diffuse pulmonary hemorrhage. CONCLUSION. Diffuse pulmonary hemorrhage is a life-threatening syndrome associated with a wide variety of underlying pathologic categories. Nonspecific clinical and imaging features pose challenges to promptly diagnosing this condition. Chest radiography commonly shows alveolar opacification, and CT reveals the extent of disease. Integration of clinical, radiologic, laboratory, and pathologic findings facilitates timely diagnosis and etiologic identification.

Milk-induced pulmonary disease in infants (Heiner syndrome)

Heiner syndrome (HS) is a food hypersensitivity pulmonary disease that affects primarily infants, and is mostly caused by cow's milk (CM). Only a few reports have been published, which may be due to its misdiagnosis. We review here a series of eight cases. When first diagnosed they were 4-29 months of age. They were fed CM from birth and their chronic respiratory symptoms began at age 1-9 months. The symptoms were in the form of cough in seven, wheezing in three, hemoptysis in two, nasal congestion in three, dyspnea in one, recurrent otitis media (OM) in three, recurrent fever in four, anorexia, vomiting, colic or diarrhea in five, hematochezia in one, and failure to thrive (FTT) in two. All had radiologic evidence of pulmonary infiltrates. High titers of precipitating antibodies to CM proteins were demonstrated in six of six and milk-specific immunoglobulin E (IgE) was positive in one of two. Pulmonary hemosiderosis (PH) was confirmed in one patient who showed iron-laden macrophages (ILM) in the bronchoalveolar lavage (BAL), gastric washing, and open lung biopsy. Additional findings, in a descending frequency, were eosinophilia, anemia, and elevated level of total IgM, IgE or IgA. Milk elimination resulted in remarkable improvement in symptoms within days and clearing of the pulmonary infiltrate within weeks. Parents consented to milk challenge in only three cases, all of whom developed recurrence of symptoms. After 2 yr of milk avoidance in one patient, milk challenge was tolerated for 2 months, and then the patient developed symptoms, serum milk precipitins, pulmonary infiltrate, and ILM. The HS should be suspected in young children with chronic pulmonary disease of obscure cause. The diagnosis is supported with a positive milk precipitin test and improvement on a trial of milk elimination. Severe cases may be complicated with PH, which should be suspected in the presence of anemia or hemoptysis and be confirmed with the demonstration of ILM.

Coeliac disease as a cause of unusually severe anaemia in a young man with idiopathic pulmonary haemosiderosis

Idiopathic pulmonary haemosiderosis (IPH) is characterized by a triad of recurrent episodes of alveolar haemorrhage, haemoptysis and iron deficiency anaemia. The combination of IPH and coeliac disease (CD) is extremely rare though both diseases may have a common pathogenetic link. As illustrated by our case CD should be specifically looked for in patients with IPH, especially those in whom the severity of anaemia is disproportionate to radiologic findings even in the absence of gastrointestinal symptoms since both diseases may benefit from a gluten-free diet.

Idiopathic pulmonary haemosiderosis: an Oriental experience

OBJECTIVES

Idiopathic pulmonary haemosiderosis (IPH) is a rare but potentially lethal disorder. A retrospective analysis of documented cases of IPH in our hospital was conducted in order to study the clinical spectrum and radiographic features, and to explore therapeutic strategies.

METHODS

A retrospective chart review was carried out, collecting medical records of patients with pulmonary haemo-siderosis at Chang Gung Children's Hospital (CGCH), a tertiary children's hospital in northern Taiwan. Secondary causes of pulmonary haemosiderosis were excluded.

RESULTS

Five patients were diagnosed as having IPH over a 25-year period. The classical triad of IPH was found at initial presentation in only 2/5 patients. One patient had well-established pulmonary fibrosis, but no pulmonary symptoms. The clinical course of IPH was exceedingly variable, with a mean delay of 9 months before diagnosis was made. Bronchoalveolar lavage (BAL) confirmed IPH in 3/5 patients. Immunological abnormalities were noted in two patients, without progression to immune disorders during follow up. While using corticosteroids alone, 4/5 patients continued to have recurrent bleeding episodes. All five patients required immunosuppressive therapy for maintenance of a symptom-free period, but survived to a mean follow up of 2 years.

CONCLUSIONS

Early definitive diagnosis and aggressive immunosuppressive therapy of IPH are imperative in order to avoid pulmonary fibrosis and mortality in IPH. A chest radiograph should be included in a serial work-up of unexplained anaemia in children. An examination using BAL can confirm IPH and high-resolution thoracic computed tomography scans are useful for early detection of pulmonary fibrosis.

Long-term clinical course of patients with idiopathic pulmonary hemosiderosis (1979-1994): prolonged survival with low-dose corticosteroid therapy

Idiopathic pulmonary hemosiderosis (IPH) is a rare disease of unknown etiology characterized by recurrent episodes of pulmonary symptoms such as cough, hemoptysis, and dyspnea. Our study consisted of 23 patients: 12 males and 11 females with IPH. The diagnosis was based on history, presence of anemia, and characteristic chest X-ray, and was confirmed by showing macrophages laden with hemosiderin in gastric washings or bronchoalveolar lavage and/or open lung biopsy. All but one patient were diagnosed in our department between 1979-1994. There was a history of multiple blood transfusions for anemia in 10 patients. Consanguinity between parents was noted in 11 patients. Severe pallor, cough, hemoptysis, and hepatomegaly were the most common findings on physical examination. All but 2 patients had hypochromic microcytic anemia of varying severity. In 12 children, moderate reticulocytosis was noted. Corticosteroids were administered with doses ranging from 5 mg every other day to 2 mg/kg/day depending on the severity of the episodes (duration of disease from 2-14 years). It is our impression that patients with IPH, benefit from long-term steroid treatment which in turn results in a milder course. Long-term low-dose steroid treatment appeared to prevent crises and assured a prolonged survival.

Long-term clinical follow-up of adult idiopathic pulmonary hemosiderosis and celiac disease

A 22-year-old man with a history of repeated whole blood transfusions since the age of 7, was admitted to the hospital for dyspnea and blood-stained sputum. A complete blood cell count, a test for reticulin antibodies, an x-ray film of the chest, a transbronchial biopsy and a biopsy of the small bowel were performed and the results confirmed the diagnosis of IPH, associated with CD. The patient has been asymptomatic for four years on a gluten-free diet. In cases of IPH, it may be important to investigate the coexistence of CD because treatment of the latter could lead to a better prognosis.

Exacerbation of idiopathic pulmonary hemosiderosis in pregnancy

Idiopathic pulmonary hemosiderosis (IPH) is a very rare disease in adults. Its occurrence in pregnancy has been described only once. A case of a 16-yr-old patient with an exacerbation of IPH during pregnancy resulting in intrauterine fetal death in the 28th week of gestation is described. The deterioration of the IPH is most probably related to the hemodynamic alterations which are at their maximum during the seventh month of pregnancy. Although rare, the case suggests that women with IPH should be followed carefully during pregnancy and, in the case of a deterioration in the patient's condition despite immunosuppressive therapy, termination of pregnancy should be considered.

Pulmonary haemosiderosis and gluten

A child with idiopathic pulmonary haemosiderosis for three years required three monthly transfusions. Circulating avian, gliadin, and reticulin antibodies suggested the diagnosis of gluten enteropathy, and jejunal biopsy showed subtotal villous atrophy. During 15 months on a gluten free diet his growth and behaviour improved and he required no transfusions.