We have investigated the secretory function of cell suspensions from bone eosinophilic granulomas surgically collected in two patients with histiocytosis X. Unseparated cell preparations spontaneously produced interleukin 1 (IL-1) and prostaglandin E2 (PGE2). In order to ascertain that this secretion was due to the characteristic Langerhans cell-like histiocytosis X cells predominantly found in...

Clinical features, brain magnetic resonance imaging findings and EDSS scores of 11 patients with neurodegenerative central nervous system Langerhans cell histiocytosis were analyzed in Japan. All patients initially had multi-system-type Langerhans cell histiocytosis; 8 at 1-2 years of age and 3 at a later age. Neurodegenerative central nervous system Langerhans cell histiocytosis disease develo...

This 52-year-old male ex-smoker presented with a six-month history of progressive breathlessness and weight loss. He deteriorated acutely, and was admitted with severe type 1 respiratory failure. Apart from diffuse coarse crackles on chest auscultation, physical examination was unremarkable. High-resolution computed tomography (HRCT) showed diffuse cystic changes throughout the lungs. A diagnos...

Langerhans cell histiocytosis includes a broad spectrum of clinical diseases resulted from proliferation and tissue infiltration of differentiated langerhans cells. This term includes Letterer-siwe disease, Hand-Schuller-Christian disease, eosinophilic granuloma and congenital reticulohistiocytosis that are more common in children than adults. This entity has recently been classified into restr...

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The synchronous or metachronous development of Langerhans cell histiocytosis and non-Langerhans cell histiocytosis in the same patient is rare. To date, only seven cases of xanthogranulomas developing in young patients with a history of Langerhans cell histiocytosis and systemic therapy have been reported in the literature. As of yet, the pathogenesis and the clinical significance of this pheno...

1. Querings K, Starz H, Balda BR. Clinical spectrum of cutaneous Langerhans’ cell histiocytosis mimicking various diseases. Acta Derm Venereol 2006;86:39-43. 2. Stein SL, Paller AS, Haut PR, Mancin AJ. Langerhans cell histiocytosis presenting in the neonatal period: A retrospective case series. Arch Pediatr Adolesc Med 2001;155:778-83 3. Punia RS, Bagai M, Mohan H, Thami GP. Langerhans cell his...

Langerhans’ cell histiocytosis may cause irreversible respiratory failure due to progressive destruction of lung parenchyma and widespread cystic change. Transplantation oVers a therapeutic option. A case is described of recurrence of Langerhans’ cell histiocytosis which was associated with deterioration in lung function four years following bilateral lung transplantation. Patients transplanted...

the occurrence of langerhans cell histiocytosis (lch) in a patient with lymphoma is an indication of a probable relationship between them. the two conditions have similarities both clinically and histopathologically. occurrence of these two conditions in the same patient, particularly not simultaneously, is rare. according to different management and treatment of these conditions, exact histopa...

Langerhans’ cell histiocytosis presenting as a parotid gland mass is extremely rare. We report a case of Langerhans’ cell histiocytosis in the parotid gland that occurred in a 34-year-old Korean male. The patient underwent parotidectomy followed by adjuvant chemotherapy. There has been no evidence of local recurrence or disease progression during 20 months after the lesion was first diagnosed. ...