1
|
Sharma S, Chatterjee D, Kanwar A. Hyaline cell-rich chondroid syringoma: A potential pitfall on cytology. Diagn Cytopathol 2023; 51:E351-E354. [PMID: 37680069 DOI: 10.1002/dc.25223] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/25/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023]
Abstract
Chondroid syringoma is a rare adnexal tumor of skin, with few cases diagnosed on fine needle aspiration cytology (FNAC). Hyaline cell-rich chondroid syringoma (HCRCS) is a very uncommon variant of chondroid syringoma described in histopathologic studies. This variant differs from the usual chondroid syringoma in its site of presentation, cytohistologic features, and morphologically mimics malignant neoplasms. To the best of our knowledge, cytologic features of this entity have never been described. This case report highlights some unusual features of this tumor and discusses the cytologic features of HCRCS along with neoplastic mimics.
Collapse
Affiliation(s)
- Sudha Sharma
- Department of Pathology, Dr. Yashwant Singh Parmar, Government Medical College, Nahan, India
| | | | - Arvind Kanwar
- Department of Surgery, Dr. Yashwant Singh Parmar, Government Medical College, Nahan, India
| |
Collapse
|
2
|
Bouallegui Y. A Comprehensive Review on Crustaceans' Immune System With a Focus on Freshwater Crayfish in Relation to Crayfish Plague Disease. Front Immunol 2021; 12:667787. [PMID: 34054837 PMCID: PMC8155518 DOI: 10.3389/fimmu.2021.667787] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/27/2021] [Indexed: 12/21/2022] Open
Abstract
Freshwater crayfish immunity has received great attention due to the need for urgent conservation. This concern has increased the understanding of the cellular and humoral defense systems, although the regulatory mechanisms involved in these processes need updating. There are, however, aspects of the immune response that require clarification and integration. The particular issues addressed in this review include an overall description of the oomycete Aphanomyces astaci, the causative agent of the pandemic plague disease, which affects freshwater crayfish, and an overview of crustaceans' immunity with a focus on freshwater crayfish. It includes a classification system of hemocyte sub-types, the molecular factors involved in hematopoiesis and the differential role of the hemocyte subpopulations in cell-mediated responses, including hemocyte infiltration, inflammation, encapsulation and the link with the extracellular trap cell death pathway (ETosis). In addition, other topics discussed include the identity and functions of hyaline cells, the generation of neoplasia, and the emerging topic of the role of sessile hemocytes in peripheral immunity. Finally, attention is paid to the molecular execution of the immune response, from recognition by the pattern recognition receptors (PRRs), the role of the signaling network in propagating and maintaining the immune signals, to the effector elements such as the putative function of the Down syndrome adhesion molecules (Dscam) in innate immune memory.
Collapse
Affiliation(s)
- Younes Bouallegui
- LR01ES14 Laboratory of Environmental Biomonitoring, Faculty of Sciences of Bizerte, University of Carthage, Bizerte, Tunisia
| |
Collapse
|
3
|
Masamatti SS, Vijaya C, Narasimha A. A rare case of hyaline cell-rich atypical chondroid syringoma with divergent differentiation. INDIAN J PATHOL MICR 2018; 61:428-430. [PMID: 30004073 DOI: 10.4103/ijpm.ijpm_101_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Chondroid syringoma (CS) also known as mixed tumor of the skin, is a rare benign adnexal tumor accounting for < 0.098%. Epithelial cells arranged in cords and tubules set in myxoid or chondroid stroma. Differentiation such as osteoid, sebaceous or mature adipocytes can be seen rarely. Hyaline cell rich is a rare variant of CS composed of cells with eosinophilic hyaline cytoplasm and plasmacytoid features. CS can have benign, atypical and malignant variants. The term atypical mixed tumor is recommended for those tumors which have histological features of malignancy such as infiltrative margin, satellite tumor nodules and tumor necrosis but without proven metastasis. Very few case reports of hyaline cellrich benign CS have been reported in the past, but to the best of our knowledge, possibly it is the first case of atypical hyaline cellrich CS of the little finger in a 65 year-old female showing divergent differentiation.
Collapse
Affiliation(s)
- Smita S Masamatti
- Department of Pathology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, Karnataka, India
| | - C Vijaya
- Department of Pathology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, Karnataka, India
| | - Aparna Narasimha
- Department of Pathology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, Karnataka, India
| |
Collapse
|
4
|
Gruber A, Roleda MY, Bartsch I, Hanelt D, Wiencke C. SPOROGENESIS UNDER ULTRAVIOLET RADIATION IN LAMINARIA DIGITATA (PHAEOPHYCEAE) REVEALS PROTECTION OF PHOTOSENSITIVE MEIOSPORES WITHIN SORAL TISSUE: PHYSIOLOGICAL AND ANATOMICAL EVIDENCE 1. J Phycol 2011; 47:603-614. [PMID: 27021990 DOI: 10.1111/j.1529-8817.2011.00998.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To study the effect of different radiation conditions on sporogenesis of Laminaria digitata (Huds.) J. V. Lamour., excised disks were induced to form sporangia under PAR (P), PAR + ultraviolet-A (UVA) (PA), and PAR + UVA + ultraviolet-B (UVB) (PAB) conditions in the laboratory. Vitality of meiospores, released from sori induced under different radiation conditions in the laboratory and from sori of wild sporophytes acclimated to in situ solar radiation in the presence and absence of ultraviolet radiation (UVR), was measured in terms of their germination capacity. Sorus induction in disks of laboratory-grown sporophytes was not hampered under light supplemented with UVR, and sorus area was not significantly different among P, PA, and PAB. Vitality and germination rate of meiospores released from sori induced under different radiation treatments was comparable. Likewise, screening of UVR of the natural solar radiation did not promote higher germination rates of meiospores released from wild sporophytes. Germination rates were, however, higher in meiospores released from laboratory-induced sori compared to sori of wild sporophytes. Higher DNA damage (formation of cyclobutane pyrimidine dimers, CPDs) was observed in laboratory-grown nonsorus compared to sorus tissue, while CPDs were nondetectable in both sorus and nonsorus tissue of wild sporophytes. To explain the apparent protection of developing meiospores and the unexpected UV resistance of soral tissue, concurrent anatomical investigations of sporogenic tissue were performed. We observed the previously unreported existence of two types of sterile paraphysis cells. One type of paraphysis cells, the most frequent type, contained several red-fluorescing plastids. The other type, less frequently occurring, was completely filled with substances emitting blue fluorescence under violet excitation, presumably brown algal phenolic compounds (phlorotannins). Cells of this type were irregularly scattered within the sorus and did not contain red-fluorescing plastids. Meiospore-containing sporangia were positioned embedded between both types of paraphysis cells. In vegetative tissue, blue autofluorescence was observed only in injured parts of the blade. Results of our study suggest that the sorus structure with phlorotannins localized in the specialized paraphysis cells may be able to screen harmful UVR and protect UV-sensitive meiospores inside the sporangia.
Collapse
Affiliation(s)
- Ansgar Gruber
- Biologische Anstalt Helgoland, Alfred Wegener Institute for Polar and Marine Research, 27498 Helgoland, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, GermanyBiozentrum Klein Flottbek, University of Hamburg, Ohnhorst-Str. 18, 22609 Hamburg, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Michael Y Roleda
- Biologische Anstalt Helgoland, Alfred Wegener Institute for Polar and Marine Research, 27498 Helgoland, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, GermanyBiozentrum Klein Flottbek, University of Hamburg, Ohnhorst-Str. 18, 22609 Hamburg, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Inka Bartsch
- Biologische Anstalt Helgoland, Alfred Wegener Institute for Polar and Marine Research, 27498 Helgoland, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, GermanyBiozentrum Klein Flottbek, University of Hamburg, Ohnhorst-Str. 18, 22609 Hamburg, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Dieter Hanelt
- Biologische Anstalt Helgoland, Alfred Wegener Institute for Polar and Marine Research, 27498 Helgoland, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, GermanyBiozentrum Klein Flottbek, University of Hamburg, Ohnhorst-Str. 18, 22609 Hamburg, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Christian Wiencke
- Biologische Anstalt Helgoland, Alfred Wegener Institute for Polar and Marine Research, 27498 Helgoland, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, GermanyBiozentrum Klein Flottbek, University of Hamburg, Ohnhorst-Str. 18, 22609 Hamburg, GermanySection Functional Ecology, Department Seaweed Biology, Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| |
Collapse
|