Olgu Sunumu

Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report

Cilt: 65 Sayı: 2 10 Haziran 2026
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Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report

Öz

Ossa cordis is a structure identified in cattle as a component of the cardiac skeleton, whereas in other mammalian species this structure is referred to as cartilago cordis; however, information regarding the presence of cartilago cordis in small mammals, particularly rodents, remains limited. This study reports incidentially observed cartilage-like structures in heart of a Wistar albino and examines their morphological and histological features. Hematoxylin–eosin staining revealed collagen-rich compact areas with cartilage-like matrix, localized near the atrioventricular ring and valve attechment sites, regions exposed to mechanical stress. Although cartilage is not a normal cardiac component, active, cell-mediated calcification processes including differentiation of mesenchymal cells into chondroblasts, cartilage matrix production, and endochondral ossification are recognized in the cardiovascular system. The presence of chondrocyte-like cells, type II and X collagen, and osteogenic proteins in calcified valves supports an osteogenic phenotype in cardiac tissue, suggesting a similar process may occur in rats. These findings imply that cartilago cordis may function as an adaptive structure, contributing to mechanical support, load redistribution, or modulation of conduction–contraction dynamics. In conclusion, this study identifies hyaline cartilage-like formations resembling cartilago cordis in the rat heart, providing a novel perspective on interspecies anatomical variation and cardiac mineralization, and highlighting the potential universality and biological significance of heterotopic cartilage and bone formation in the heart.

Anahtar Kelimeler

Etik Beyan

Bu olgu sunumu, 210–230 g ağırlığında, 4 yaşında, erişkin dişi Wistar albino bir sıçanda rastlantısal olarak saptanan bir bulguyu sunmaktadır. Söz konusu sıçan, başlangıçta ışık mikroskobisinde parafin ve JB-4 gömme tekniklerinin karşılaştırılmasını amaçlayan ayrı bir araştırma projesinde kullanılmıştır. Bu çalışmada kalp dokusu hedeflenen analiz kapsamında yer almamakla birlikte, rutin doku takibi sırasında kalpte kıkırdak yapısında bir oluşumun tesadüfen gözlenmesi, özgün deneysel amaçla ilişkili değildir. Deney süresi boyunca sıçan, 12 saat aydınlık/12 saat karanlık döngüsüne sahip standart laboratuvar koşullarında barındırılmış ve su ile pelet yemlere ad libitum erişimi sağlanmıştır. Özgün çalışma için etik onay, Yerel Hayvan Deneyleri Etik Kurulu tarafından verilmiştir (Onay No: 65202830-050.04.04.-13, 05.03.2025 tarihli).

Kaynakça

  1. Dyce KM, Sack WO, Wensing CJG. Textbook of veterinary anatomy. 5th ed. Elsevier Saunders; 2017.
  2. Nasoori A. Formation, structure, and function of extra-skeletal bones in mammals. Biol Rev 2020;95(4):986–1019. https://doi.org/10.1111/brv.12597
  3. Best A, Egerbacher M, Swaine S, Perez W, Alibhai A, Rutland P, Rutland CS. Anatomy, histology, development and functions of Ossa cordis: A review. Anat Histol Embryol 2022;51(6):683–695. https://doi.org/10.1111/ahe.12817
  4. Trainini JC, Lowenstein J, Beraudo M, Wernicke M, Trainini A, Llabata VM, Carreras CF. Myocardial torsion and cardiac fulcrum. Morphologie 2021;105(348):15–23. https://doi.org/10.1016/j.morpho.2020.06.010
  5. Egerbacher M, Weber H, Hauer S. Bones in the heart skeleton of the otter (Lutra lutra). J Anat 2000;196:485–491. https://doi.org/10.1046/j.1469-7580.2000.19630485.x
  6. Gopalakrishnan G, Blevins WE, Van Alstine WG. Osteocartilaginous metaplasia in the right atrial myocardium of healthy adult sheep. J Vet Diagn Invest 2007;19(5):518–524. https://doi.org/10.1177/104063870701900509
  7. von Gise A, Pu WT. Endocardial and epicardial epithelial-to-mesenchymal transitions in heart development and disease. Circ Res 2012;110(12):1628–1645. https://doi.org/10.1161/CIRCRESAHA.111.259960
  8. Towler DA, Linda DD. Vascular calcification: A perspective on an imminent epidemic. Circ Res 2011;108(11):1378–1380. https://doi.org/10.1161/CIRCRESAHA.111.243022

Ayrıntılar

Birincil Dil

İngilizce

Konular

Patoloji

Bölüm

Olgu Sunumu

Yayımlanma Tarihi

10 Haziran 2026

Gönderilme Tarihi

13 Aralık 2025

Kabul Tarihi

30 Aralık 2025

Yayımlandığı Sayı

Yıl 2026 Cilt: 65 Sayı: 2

Kaynak Göster

APA
Hamutoğlu, R., & Ünver Saraydin, S. (2026). Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report. Ege Tıp Dergisi, 65(2), 336-339. https://doi.org/10.19161/etd.1841533
AMA
1.Hamutoğlu R, Ünver Saraydin S. Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report. ETD. 2026;65(2):336-339. doi:10.19161/etd.1841533
Chicago
Hamutoğlu, Rasim, ve Serpil Ünver Saraydin. 2026. “Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report”. Ege Tıp Dergisi 65 (2): 336-39. https://doi.org/10.19161/etd.1841533.
EndNote
Hamutoğlu R, Ünver Saraydin S (01 Haziran 2026) Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report. Ege Tıp Dergisi 65 2 336–339.
IEEE
[1]R. Hamutoğlu ve S. Ünver Saraydin, “Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report”, ETD, c. 65, sy 2, ss. 336–339, Haz. 2026, doi: 10.19161/etd.1841533.
ISNAD
Hamutoğlu, Rasim - Ünver Saraydin, Serpil. “Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report”. Ege Tıp Dergisi 65/2 (01 Haziran 2026): 336-339. https://doi.org/10.19161/etd.1841533.
JAMA
1.Hamutoğlu R, Ünver Saraydin S. Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report. ETD. 2026;65:336–339.
MLA
Hamutoğlu, Rasim, ve Serpil Ünver Saraydin. “Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report”. Ege Tıp Dergisi, c. 65, sy 2, Haziran 2026, ss. 336-9, doi:10.19161/etd.1841533.
Vancouver
1.Rasim Hamutoğlu, Serpil Ünver Saraydin. Histological evaluatıon of structures similar to the cartilago cordis in the rat heart: A case report. ETD. 01 Haziran 2026;65(2):336-9. doi:10.19161/etd.1841533

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