Biomaterial Database

Cellules grumelées: old terminology revisited. Regarding the cytologic diagnosis of chronic lymphocytic leukemia and well-differentiated lymphocytic lymphoma in pleural effusions. 1985

T A Seidel, and A D Garbes

Distinguishing chronic lymphocytic leukemia (CLL) or well-differentiated lymphocytic lymphoma (WDLL) from a benign chronic inflammatory process involving the serous cavities is often a difficult task for the cytopathologist faced with a lymphocyte-rich effusion fluid. Spriggs and Boddington decribed characteristic heavy chromatin clumping (cellules grumelées) of the lymphocytic nuclei in effusions as diagnostic of chronic lymphocytic leukemia. A study of 23 cases of lymphocyte-rich pleural effusions in our laboratory showed that, while this cytomorphologic feature is a function of cytopreparatory technique and fixation, it was observed only in cases of CLL or WDLL and not in benign inflammatory processes.

UI	MeSH Term	Description	Entries
D007945	Leukemia, Lymphoid	Leukemia associated with HYPERPLASIA of the lymphoid tissues and increased numbers of circulating malignant LYMPHOCYTES and lymphoblasts.	Leukemia, Lymphocytic,Lymphocytic Leukemia,Lymphoid Leukemia,Leukemias, Lymphocytic,Leukemias, Lymphoid,Lymphocytic Leukemias,Lymphoid Leukemias
D008214	Lymphocytes	White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS.	Lymphoid Cells,Cell, Lymphoid,Cells, Lymphoid,Lymphocyte,Lymphoid Cell
D008218	Lymphocytosis	Excess of normal lymphocytes in the blood or in any effusion.	Lymphocytoses
D008223	Lymphoma	A general term for various neoplastic diseases of the lymphoid tissue.	Germinoblastoma,Lymphoma, Malignant,Reticulolymphosarcoma,Sarcoma, Germinoblastic,Germinoblastic Sarcoma,Germinoblastic Sarcomas,Germinoblastomas,Lymphomas,Lymphomas, Malignant,Malignant Lymphoma,Malignant Lymphomas,Reticulolymphosarcomas,Sarcomas, Germinoblastic
D010996	Pleural Effusion	Presence of fluid in the pleural cavity resulting from excessive transudation or exudation from the pleural surfaces. It is a sign of disease and not a diagnosis in itself.	Effusion, Pleural,Effusions, Pleural,Pleural Effusions
D002454	Cell Differentiation	Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.	Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002467	Cell Nucleus	Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)	Cell Nuclei,Nuclei, Cell,Nucleus, Cell
D003937	Diagnosis, Differential	Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures.	Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D006652	Histological Techniques	Methods of preparing tissue for examination and study of the origin, structure, function, or pathology.	Histologic Technic,Histologic Technics,Histologic Technique,Histologic Techniques,Histological Technics,Technic, Histologic,Technics, Histologic,Technique, Histologic,Techniques, Histologic,Histological Technic,Histological Technique,Technic, Histological,Technics, Histological,Technique, Histological,Techniques, Histological
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man