Histiocytoses are rare and heterogeneous disease sharing histology, characterized by
accumulation of histiocytes. They may be inherited or sporadic, and related to the …

Background Histiocytic sarcoma (HS) is a rare hematopoietic malignancy with an aggressive
clinical presentation associated with a poor overall survival. To date, surgical resection …

Primary histiocytic sarcoma of the central nervous system is a rare lymphohematopoietic
tumor originating from histiocytes. Here we report such a case with somatic NF2 mutation …

Histiocytic sarcoma (HS) is a rare malignancy that develops from myeloid stem cells. There
has been considerable debate over the years as to the correct terminology. In the early …

Histiocytic sarcoma (HS) is an extremely rare malignant neoplasm that exhibits morphologic
and immune‐phenotype evidence of histiocytic differentiation. The disease most commonly …

Case summary An 11-year-old neutered male Maine Coon cat was presented for
investigation of anisocoria and depression. Neurological examination was consistent with a …

Histiocytic sarcoma is an aggressive haematopoietic malignancy accounting for less than
1% of haematolymphoid neoplasms with a diagnosis based on morphology and …

Histiocytic sarcoma/malignant histiocytosis is a rare, aggressive neoplasm that can occur as
a primary malignancy or secondary to another hematologic neoplasm. While it is relatively …

Objective To investigate the clinicopathological, immunohistochemical and molecular
features of histiocytic sarcomas affecting the oral cavity. Methods Pathology files of two …

Xanthoma disseminatum (XD) is a rare non-Langerhans cell histiocytosis characterized by
xanthomatous lesions in the absence of hyperlipidemia. XD usually develops in young …