Journal of clinical pathology
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Case Reports
Malignant histiocytosis (histiocytic medullary reticulosis) with spindle cell differentiation and tumour formation.
Malignant histiocytosis (histiocytic medullary reticulosis) in a 45-year-old white man is described. Unusual features were presentation as a surgical emergency with signs of obstruction and peritonitis due to an ileal tumour and extensive spindle cell differentiation. Problems in the differential diagnosis of malignant histiocytosis are briefly discussed.