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Gutjahr E, Streng A, Aulmann S, Flechtenmacher C, Toberer F, Heil J, Böcker W, Sinn P. [Pathology of the nipple-areola complex : Part II. Tumors, tumor-like lesions, and supernumerary breast lesions]. DER PATHOLOGE 2020; 41:515-522. [PMID: 32458047 DOI: 10.1007/s00292-020-00790-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The nipple-areola complex is the origin of various morphologically distinct tumors and tumor-like lesions, which can be delineated from the special structures of the nipple, in particular the intramammary ducts, skin-appendages, and the intramammary stroma. Benign tumors are most frequent and this includes epithelial tumors such as mammary adenoma and syringomatous tumor of the nipple. Less commonly observed are benign mesenchymal tumors such as leiomyoma of the nipple, or tumor-like lesions like pseudo-lymphoma. With excess formations of the nipple, the different forms of polythelia and polymastia have to be considered.
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Affiliation(s)
- Ewgenija Gutjahr
- Pathologisches Institut, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland
| | - Agathe Streng
- Pathologisches Institut, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland
| | | | - Christa Flechtenmacher
- Pathologisches Institut, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland
| | | | - Jörg Heil
- Universitäts-Frauenklinik, Heidelberg, Deutschland
| | - Werner Böcker
- Dermatologische Gemeinschaftspraxis am Tibarg, Hamburg, Deutschland
| | - Peter Sinn
- Pathologisches Institut, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland.
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Siitonen R, Pietikäinen A, Liljenbäck H, Käkelä M, Söderström M, Jalkanen S, Hytönen J, Roivainen A. Targeting of vascular adhesion protein-1 by positron emission tomography visualizes sites of inflammation in Borrelia burgdorferi-infected mice. Arthritis Res Ther 2017; 19:254. [PMID: 29166944 PMCID: PMC5700622 DOI: 10.1186/s13075-017-1460-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 10/26/2017] [Indexed: 12/13/2022] Open
Abstract
Background In the present study, we sought to evaluate the feasibility of targeting vascular adhesion protein-1 (VAP-1) by positron emission tomography (PET) for the longitudinal quantitative assessment of Borrelia burgdorferi infection-induced inflammation in mice. Methods Mice with B. burgdorferi infection-induced arthritis were studied. During a 7-week follow-up period, the progression of arthritis was monitored weekly with 68Ga-DOTA-Siglec-9 PET/computed tomography (CT) and measurement of tibiotarsal joint swellings. A subgroup of infected mice was treated with ceftriaxone. Finally, histopathological assessment of joint inflammation was performed and VAP-1 expression in joints were determined. Results Explicit joint swelling and 68Ga-DOTA-Siglec-9 uptake could be demonstrated in the affected joints from B. burgdorferi-infected mice. By contrast, no obvious accumulation of 68Ga-DOTA-Siglec-9 was detected in joints of uninfected mice. The maximum swelling and highest uptake in the affected joints were observed 4 weeks after the infection. 68Ga-DOTA-Siglec-9 uptake in joints correlated with joint swelling (P < 0.0001) and histopathological scoring of inflammation (P = 0.020). Despite short-term antibiotic treatment, the arthritis persisted, and the PET signal remained as high as in nontreated mice. Immunohistochemistry revealed strong-to-moderate expression of VAP-1 in the synovium of B. burgdorferi-infected mice, while only weak expression of VAP-1 was detected in uninfected mice. Conclusions The present study showed that 68Ga-DOTA-Siglec-9 can detect B. burgdorferi infection-induced arthritis in mice. Furthermore, longitudinal PET/CT imaging allowed monitoring of arthritis development over time.
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Affiliation(s)
- Riikka Siitonen
- Turku PET Centre, University of Turku, Kiinamyllynkatu 4-8, FI-20520, Turku, Finland
| | - Annukka Pietikäinen
- Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FI-20520, Turku, Finland.,Turku Doctoral Programme for Molecular Medicine, Turku, Finland
| | - Heidi Liljenbäck
- Turku PET Centre, University of Turku, Kiinamyllynkatu 4-8, FI-20520, Turku, Finland.,Turku Center for Disease Modeling, University of Turku, Kiinamyllynkatu 10, FI-20520, Turku, Finland
| | - Meeri Käkelä
- Turku PET Centre, University of Turku, Kiinamyllynkatu 4-8, FI-20520, Turku, Finland
| | - Mirva Söderström
- Department of Pathology, Turku University Hospital, Kiinamyllynkatu 10, FI-20520, Turku, Finland
| | - Sirpa Jalkanen
- Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FI-20520, Turku, Finland.,MediCity Research Laboratory, University of Turku, Tykistönkatu 6, FI-20520, Turku, Finland
| | - Jukka Hytönen
- Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FI-20520, Turku, Finland.,Microbiology and Genetics Department, Turku University Hospital, Kiinamyllynkatu 10, FI-20520, Turku, Finland
| | - Anne Roivainen
- Turku PET Centre, University of Turku, Kiinamyllynkatu 4-8, FI-20520, Turku, Finland. .,Turku Center for Disease Modeling, University of Turku, Kiinamyllynkatu 10, FI-20520, Turku, Finland. .,Turku PET Centre, Turku University Hospital, Kiinamyllynkatu 4-8, FI-20520, Turku, Finland.
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Pietikäinen A, Siitonen R, Liljenbäck H, Eskola O, Söderström M, Roivainen A, Hytönen J. In vivo imaging of Lyme arthritis in mice by [ 18F]fluorodeoxyglucose positron emission tomography/computed tomography. Scand J Rheumatol 2017. [PMID: 28649922 DOI: 10.1080/03009742.2017.1287306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Lyme borreliosis (LB) is a tick-borne infectious disease caused by Borrelia burgdorferi spirochaetes, which are able to disseminate from the tick-bite site to distant organs. Mouse models are widely used to study LB and especially Lyme arthritis (LA), but only a few whole-animal in vivo imaging studies on the pathogenesis of B. burgdorferi infection in mice have been published so far. The existing imaging techniques have their drawbacks and, therefore, novel tools to complement the array of available LB imaging methodologies are needed. METHOD The applicability of positron emission tomography combined with computed tomography (PET/CT) imaging was evaluated as a method to monitor LB and especially LA in the C3H/HeN mouse model infected with wild-type B. burgdorferi N40 bacteria. The imaging results were compared with the traditional LA analysis methods, such as tibiotarsal joint swelling and histopathological assessment of joint inflammation. RESULTS PET/CT imaging provided high-resolution images with quantitative information on the spatial and temporal distribution of the [18F]fluorodeoxyglucose ([18F]FDG) tracer in B. burgdorferi-infected mice. The [18F]FDG accumulated in the affected joints and activated lymph nodes of infected mice, while the tracer signal could not be visualized in these organs in uninfected control animals. Importantly, in vivo PET/CT imaging data were in agreement with the histopathological scoring of inflammation of mouse joints. CONCLUSION PET/CT imaging with [18F]FDG is a reliable method to longitudinally monitor the development and progression of B. burgdorferi infection-induced inflammation in vivo in mouse joints.
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Affiliation(s)
- A Pietikäinen
- a Department of Medical Microbiology and Immunology , University of Turku , Turku , Finland.,b Turku Doctoral Programme for Molecular Medicine , University of Turku , Turku , Finland
| | - R Siitonen
- c Turku PET Centre , Turku University Hospital and University of Turku , Turku , Finland
| | - H Liljenbäck
- c Turku PET Centre , Turku University Hospital and University of Turku , Turku , Finland.,d Turku Center for Disease Modeling , University of Turku , Turku , Finland
| | - O Eskola
- c Turku PET Centre , Turku University Hospital and University of Turku , Turku , Finland
| | - M Söderström
- e Department of Pathology and Forensic Medicine , Turku University Hospital and University of Turku , Turku , Finland
| | - A Roivainen
- c Turku PET Centre , Turku University Hospital and University of Turku , Turku , Finland.,d Turku Center for Disease Modeling , University of Turku , Turku , Finland
| | - J Hytönen
- a Department of Medical Microbiology and Immunology , University of Turku , Turku , Finland.,f Department of Clinical Microbiology and Immunology , Turku University Hospital , Turku , Finland
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