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 is very rare. the purpose of this report is to describe a un...

The histiocytoses are a group of proliferative disorders of themonocyte-macrophage lineage that are neoplastic or reactive innature. Based on immunophenotyping and electron microscopy,two main groups have been recognized namely 1) Langerhanscell histiocytosis (LCH) and 2) non- Langerhans cell histiocytosis(non-LCH). In this study, a fairly rare disease of the non-LCHgroup, generalized eruptive ...

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...

background langerhans cell histiocytosis (lch) is a rare disease in which monoclonal migration and proliferation of specific dendritic cells is seen. the disease primarily affects the bones and skin, but there is a possibility that involves other organs or appears as a multi-systemic disease. case report in oral examination of a nine-month girl, two deep wounds with a yellow membrane with appro...

Histiocytosis, according to Histiocyte Society2, is traditionally classifi ed into three main groups: Class I: (Langerhans cell histiocytosis), formerly called X histiocytosis Class II: Histiocytosis of other mononuclear phagocytes different from Langerhans cells Class III: Histiocytic malignancies.1,3,4 Nevertheless, Langerhans cell Histiocytosis is the currently preferred term. It is classifi...

Indeterminate cell histiocytosis (ICH) is a rare disorder in which histiocytic cells proliferate, expressing markers of both X- and non-X histiocytosis. Nevertheless, it is not totally clear if both types of markers are co-expressed by the same cell in this disorder, or on the contrary, the histiocytosis is made of two phenotypically different types of cells. Some recent reports seem to indicat...

Langerhans cell neoplasms, which include histiocytosis and sarcoma, are tumors that originate from dendritic cells. sarcoma is defined as a high-grade neoplasm with overtly malignant cytological features the cell-like phenotype, generally has poorer prognosis more aggressive phenotype than histiocytosis. Insulin-like growth factor 2 messenger RNA-binding protein 3 (IGF2BP3 or IMP3) an oncofetal...

results there was a significant difference in prevalence of ebv presence between patients and controls. the ebv was found by rt-pcr in 19 (63.33%) out of 30 patients and only in eight (26.7%) of 30 control samples. the p = 0.004, was calculated using chi-square test (or: 4.75; 95% ci: 1.58 ‒ 14.25). conclusions our study is the first investigation performed on patients with lch and its possible...