title: Gaucher or pseudo-Gaucher? The challenge of several diseases colliding in a pediatric patient.
abstract: We present here an unusual case in which 3 distinct, apparently unrelated clinical entities were diagnosed in a pediatric patient. A 6-year-old female, previously diagnosed with neurofibromatosis type 1, presented with a mediastinal T-cell lymphoblastic lymphoma; the metabolic and molecular confirmation of Gaucher disease were obtained after typical Gaucher cells were found in the patient's bone marrow after a staging biopsy. The morphological and ultrastructural findings leading to the incidental diagnosis of this rare metabolic disorder are illustrated. In addition, we discuss the possible pathogenetic relationships among these 3 distinct clinical entities, as well as the challenges in the differential diagnosis of bone marrow histiocytic infiltrations in patients with hematologic malignancies.
authors.affiliation: Program of Pediatric and Developmental Pathology, Yale University School of Medicine, New Haven, CT 06520, USA.
authors.forename: Mariana M
authors.initials: MM
authors.lastname: Cajaiba
authors.forename: Miguel
authors.initials: M
authors.lastname: Reyes-Múgica
mesh_terms: D002648:Child; D005260:Female; D005776:Gaucher Disease / Q000150:complications* / Q000235:genetics / Q000473:pathology; D005962:Glucosylceramidase / Q000235:genetics; D006801:Humans; D009456:Neurofibromatosis 1 / Q000150:complications* / Q000235:genetics / Q000473:pathology; D054218:Precursor T-Cell Lymphoblastic Leukemia-Lymphoma / Q000150:complications* / Q000235:genetics / Q000473:pathology
chemical_list: D005962:Glucosylceramidase