126 - 150 of 4,589
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TitleDescriptionSubjectCollection
126 Vacuolar degeneration of neutrophils in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). Toxic degeneration of neutrophil resulting in vacuolization of cytoplasm (1); cell with beginning vacuolization (2).Poja Histology Collection - Blood & Bone Marrow Subset
127 Activated lymphocyte (liver inflammation, human)Electron microscopy. A cytotoxic T cell (2) is localized within the sinusoid (3) in the liver (8), surrounded by erythrocytes (1) and debris. The lymphocyte with an irregular indented nucleus shows juxta-nuclearly partly swollen Golgi areas (*) and aggregation of mitochondria (4) in the cytoplasm. F...Poja Histology Collection - Blood & Bone Marrow Subset
128 Monocyte (peripheral blood, human)Electron microscopy. In this picture the large nucleus (1) of this cell (diameter of 12-20 μm) is twice sectioned. Golgi areas (2) and centriole, profiles of rough endoplasmic reticulum (3) and many free ribosomes are present. There are many mitochondria (4) as well as scattered homogeneous electro...Poja Histology Collection - Blood & Bone Marrow Subset
129 Erythroblasts (bone marrow, rabbit)Electron microscopy. (1) shows basophilic erythroblasts or early normoblasts with clumped heterochromatin in the nucleus and numerous polysomes. (1m) points to a mitotic figure of a basophilic erythroblast. A late polychromatic erythroblast or intermediate normoblast (2) marks a maturing stage in wh...Poja Histology Collection - Blood & Bone Marrow Subset
130 Myelopoiesis in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). The smear shows a group of myeloid cells in different stages of maturation, in which series the alterations in the nucleus can be noticed clearly going from (1) to (5), i.e. the nucleus gets more and more condensed, indented and subsequently segmented in lobes. (1) p...Poja Histology Collection - Blood & Bone Marrow Subset
131 Basophilic granulocyte in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). The basophilic granulocyte has large, coarse dark purple-stained granules that contain mediators such as eosinophilic chemotactic factors, heparin, histamine, myeloperoxidase. The nuclear lobes are irregular, badly visible and covered by the granules.Poja Histology Collection - Blood & Bone Marrow Subset
132 Band and hyper segmented neutrophils in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). (A) shows a young band neutrophil with a non-segmented nucleus. (B) shows mature neutrophils with more than 6 nuclear lobes (hyper segmented). The smear also shows anisocytosis with both microcytes and macrocytes.Poja Histology Collection - Blood & Bone Marrow Subset
133 Survey of bone marrow (bone marrow, rabbit)Electron microscopy. Within the loose reticular tissue a great variety of different stages of young erythrocytes (3, 4) as well as of young granulocytes (5) is present. (2) indicates reticular cells and (2b) phagocytizing reticular cells. (1) fat cells (adipocytes); (6) myeloid cell; (7) capillary.Poja Histology Collection - Blood & Bone Marrow Subset
134 Eosinophilic (meta)myelocyte in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). The granules of the eosinophilic (meta)myelocyte (1) are large and brown-blue stained in contrast to the hardly visible, dust-like granules in the neutrophilic band form (2). (3) orthochromatic erythroblast.Poja Histology Collection - Blood & Bone Marrow Subset
135 Granular megakaryocyte producing platelets in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). The centrally located megakaryocyte (1) has a huge nucleus (polyploidy) and an extended cytoplasm from which platelets are released at the periphery (arrows).Poja Histology Collection - Blood & Bone Marrow Subset
136 Mast cell (lung, dog)Electron microscopy. This mucosal mast cell of the lung is localized in the vicinity of a blood vessel. Notice the smooth muscle cells (1) of a small arteriole and collagen fibers (2). Most obvious is the presence of granules varying in shape and size. These membrane-bound vesicles (so-called compou...Poja Histology Collection - Blood & Bone Marrow Subset
137 Basophilic granulocyte (peripheral blood, human)Electron microscopy. The bilobed nucleus (2) is surrounded by moderate amount of organelles. The cell exhibits few short filopodia (arrows). The large coarse basophilic granules (1) (specific granules) vary in density and contain vasoactive mediators such as heparin, histamine, sulphated proteoglyca...Poja Histology Collection - Blood & Bone Marrow Subset
138 Mott cell in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). Plasma cells that contain abundant globular inclusions or vacuoles (Russell bodies) composed of immunoglobulin are called Mott cells (1) morular cells or grape cells. Russell bodies can stain blue-violet or pink but may also be dissolved during fixation and staining....Poja Histology Collection - Blood & Bone Marrow Subset
139 Crista biopsies of normal, hypoplastic and malignant bone marrow (human)Stain: Hematoxylin and eosin. The composition of three slides shows a normal bone marrow section (A), an aplastic bone marrow (B), and a malignant lymphoma in bone marrow (C). (1) Cristae. (2) Fat tissue or fat cells. (3) Erythrocytes and (4) erythroblasts with dark nuclei.Poja Histology Collection - Blood & Bone Marrow Subset
140 Karyorrhexis of polychromatic erythroblast in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). The nucleus of the polychromatic erythroblast (1) shows abnormal karyorrhexis due to vitamin B12 deficiency or folic acid deficiency. Normochromic normocyte (2, normal erythrocyte), poikilocytosis and oval macrocytes are seen.Poja Histology Collection - Blood & Bone Marrow Subset
141 Binucleated plasma cell in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). A large plasma cell with two nuclei. The chromatin is coarsely clumped. The cytoplasm is intensive basophilic due to the large RER content for purpose of antibody production. Note the clear zone (Golgi area) between the nuclei.Poja Histology Collection - Blood & Bone Marrow Subset
142 LymphoblastScheme electron microscopy. The lymphoblast shows a high nucleus-cytoplasm ratio, it is a large cell (10-20 μm) with a large nucleus and distinct nucleolus. Apart from numerous ribosomes, a small juxta-nuclear Golgi area the cytoplasm is scanty with very few organelles.Poja Histology Collection - Blood & Bone Marrow Subset
143 Erythron in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). In the center of the slide an erythron that consists of a reticular cell (1) surrounded by erythroblasts (2) at various maturational stages.Poja Histology Collection - Blood & Bone Marrow Subset
144 Neutrophilic metamyelocytes in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). (1) neutrophilic metamyelocytes. (2) polychromatic erythroblast. (3) segmented neutrophilic granulocyte.Poja Histology Collection - Blood & Bone Marrow Subset
145 Neutrophilic myelocyteScheme electron microscopy. From CFU-S (colony forming units-spleen) stem cells arise CFU-GM (colony forming unit-granulocyte/monocyte) stem cells. The latter divide by mitoses and differentiate via promyeloblasts and myeloblasts into myelocytes (the last proliferative stage). The neutrophilic myelo...Blood; Bone Marrow; Electron microscopy; Neutrophilic myelocyte; Neutrophilic granulocyte; Primary granule; Secondary granule; Azurophilic granule; LysosomePoja Histology Collection - Blood & Bone Marrow Subset
146 Mast cell (lung, human)Electron microscopy. Mast cells (mastocytes) are oval (12 m) or spindle-shaped and show few thin microvilli at the surface. They are frequently found perivascularly or perineurally within the connective tissue (1). The cytoplasm is provided with a moderate amount of organelles. Most obvious is the p...Poja Histology Collection - Blood & Bone Marrow Subset
147 Eosinophilic, neutrophilic and basophilic granulocytes in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). The eosinophil (1) is slightly larger than the neutrophil with a diameter of 12-17 m. The nucleus is usually bilobed (occasionally trilobed). Eosinophil granules are considerably larger than those of neutrophils, and are stained reddish-orange. These cells are very f...Poja Histology Collection - Blood & Bone Marrow Subset
148 Neutrophilic granules in PMN (spleen, human)Electron microscopy. A detail of the cytoplasm shows many granules of varying forms (round, elongated to dumb-bell), sizes and densities. The majority of these electron-grey to electron-lucent granules are the specific or secondary granules (diameter 0.2 up to length 0.8 μm). They contain substance...Poja Histology Collection - Blood & Bone Marrow Subset
149 Eosinophilic granulocyte (peripheral blood, human)Electron microscopy. A 11-15 m cell with a partially cut bilobed nucleus (1) and moderate amount of organelles and vesicles. The specific eosinophilic granules (2) contain a central electron-dense angular crystalloid core (3) embedded in a finely granular matrix (4). The crystalloid consists of an a...Poja Histology Collection - Blood & Bone Marrow Subset
150 Neutrophilic granulocytes in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). The nucleus of the neutrophilic granulocytes (also called polymorphonuclear leukocyte or PMN) is segmented into three to five connected lobules. The cytoplasm displays many fine (dust-like) azurophilic granules. The majority called specific granules are filled with e...Poja Histology Collection - Blood & Bone Marrow Subset
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