Adult pulmonary Langerhans’ cell histiocytosis is a rare disorder of unknown aetiology that occurs predominantly in young smokers, with an incidence peak at 20–40 yrs of age. In adults, pulmonary involvement with Langerhans’ cell histiocytosis usually occurs as a single-system disease and is characterised by focal Langerhans’ cell granulomas infiltrating and destroying distal bronchioles. High-...

BACKGROUND Langerhans cell histiocytosis is a rare proliferative histiocytic disease of unknown etiology. Histologically, it is characterized by granuloma-like proliferation of Langerhans-type dendritic cells derived from bone marrow. Many investigators have suggested the possible role of viruses such as Epstein-Barr virus, human herpesvirus-6 (HHV-6), herpes simplex virus (HSV) types 1 and 2, ...

This article discusses the potential of droplet digital polymerase chain reaction (PCR) for diagnostic detection and monitoring allelic load BRAF V600E mutation in circulating cell-free DNA myeloid progenitor cell population bone marrow patients with Langerhans histiocytosis (LCH). Droplet PCR may serve as a useful tool minimal residual disease improve our understanding pathogenesis cells histi...

Block 6 Level 9, Dermatology Unit, Singapore General Hospital, Outram Road, 169608, Singapore Langerhans cell histiocytosis (LCH) is a proliferative histiocytic disorder of unknown cause characterized by the accumulation of Langerhan cells in various tissues. Typically a disorder of childhood, features of this disease have been well documented in children but remain ambiguous and poorly documen...

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Langerhans cell histiocytosis (LCH) is a rare disorder described as three different entities including eosinophilic granulomaof bone, the Hand-Schuller-Christian syndrome, and Letterer-Siwe disease. LCH is currently classified into singlesystem LCH, and multisystem LCH. Patients with single system LCH have an excellent prognosis, and are mostlytreated with local therapy. Multisystem LCH is subd...

Langerhans cell histiocytosis can involve single or multiple organ/tissue systems and may go undiagnosed for years until it enters the clinician's differential diagnosis framework. We report on a young patient who initially presented with diabetes insipidus and subsequently with pyrexia of unknown origin. She progressed from single system Langerhans cell histiocytosis to multisystem involvement...

Langerhans cell histiocytosis is a rare histiocytic disorder and has been diagnosed in all age groups, but is most common in children. This disease is very rare in adults. We presented a patient who was 62 years old man diagnosed langerhans cell histiocytosis.

INTRODUCTION Langerhans' cell histiocytosis is a proliferative histiocytic disorder of unknown cause originating from dendritic cells. CASE PRESENTATION The authors report a case of Langerhans' cell histiocytosis in a 48-year-old man with multisystemic disease presentation, including liver involvement. CONCLUSION Hepatic involvement is an uncommon feature in this rare disease and there is n...