Received: 18 April 2008 Accepted: 8 October 2008 Abstract: Langerhans cell histiocytosis is a relatively rare unique disease process characterized by an abnormal proliferation of immature dendritic cells usually affecting children and young adults. Jaws are involved in less than 10% of children with the disease while mandibular involvement in young children is uncommon and bilateral affection i...

background: langerhans' cell histiocytosis (lch) is a reactive proliferative disease of unknown pathogenesis characterized by proliferation of langerhans cells. involvement of bone marrow (bm), liver and lung are related to high risk factors and poor survival. the aim of this report is to highlight the clinical and haematological findings of 5 cases of lch with bm infiltration which may help to...

LCH: Langerhans cell histiocytosis INTRODUCTION Langerhans cell histiocytosis (LCH) identifies a spectrum of disorders that are classified according to the organs involved (singleor multi-organ disease) and the presence or absence of organ failure. Patients younger than 2 years with a multisystem disease have a significantly higher mortality rate than older children. Nail involvement in LCH is ...

A rare case of adult onset Langerhans' cell histiocytosis associated with dysgerminoma in a 35 year old Chinese woman is reported. The patient had a history of dysgerminoma of left ovary 15 years previously and had undergone surgery followed by radiotherapy and an uneventful recovery. She presented again in March 1994, this time with a left clavicular mass, which was shown histologically to be ...

We report a rare case of Langerhans cell histiocytosis involving the sternum. The patient was a 12-year-old girl presenting with anterior chest pain and swelling. Radiographs and computed tomography showed an osteolytic lesion in the sternum. Technetium bone scintigraphy revealed increased uptakes in the sternum, the greater trochanter of the right femur, and the right distal tibia. Incisional ...

A 45-year old male presented latero-cervical lymphoadenopathy. Biopsy revealed a malignant proliferation of immature "lymphoid" cells bearing T6 antigen and HLA-DR but negative for other lymphoid markers, suggesting a phenotype similar to Langerhans cells. The patient did not receive any therapy and six months later developed a histologically typical malignant histiocytosis, involving spleen an...

This chapter reviews the clinical presentation, histopathology, immunoprofile and molecular features of Langerhans cell neoplasms of the skin including Langerhans cell histiocytosis (LCH) and its malignant counterpart, Langerhans cell sarcoma (LCS). Biopsy of the skin is a useful method to confirm LCH/LCS diagnosis, as cutaneous involvement is seen in more than 50% cases. Skin can be the only p...

A synchronous presentation of pulmonary lesions Langerhans cell sarcoma (LCS) and histiocytosis (LCH) is extremely rare. We report the case a 57-year-old man with 3 nodules, 1 in left lung 2 right lung. In 2-stage operation, he first underwent segmentectomy, nodule was diagnosed as LCS. Thereafter, nodules disappeared. The residual resected by segmentectomy LCH. This complete resection localize...

Langerhans cell histiocytosis is a rare group of proliferative disorders. Beside cutaneous involvement, other internal organs can be affected. The treatment of cutaneous lesions is difficult and relies on topical corticosteroids, carmustine, nitrogen mustard, and photochemotherapy. Systemic steroids and vinblastine are used for recalcitrant skin lesions. However, some cases fail to respond. An ...

We present a 73 year old female with intractable pruritus and nonspecific cutaneous rash for a period of 9 months. She had recieved symptomatic therapy with no improvement. A complete examination revealed axillary and abdominal lymphadenopathy. A biopsy confirmed the diagnosis of Hodgkins lymphoma with Langerhans cell histiocytosis. She received 5 cycles of chemotherapy with resolution of pruri...