What is stroma of the thyroid gland?
The stroma of the thyroid gland is the connective tissue that supports the lobules and follicles of the thyroid gland. The Greek word “stroma” means “anything spread out for sitting or lying upon,” essentially a mat. The stroma in anatomy is thus the supporting tissue.
What is the stromal tissue?
Stroma (from Greek στρῶμα ‘layer, bed, bed covering’) is the part of a tissue or organ with a structural or connective role. It is made up of all the parts without specific functions of the organ – for example, connective tissue, blood vessels, ducts, etc.
What is cellular stroma?
A type of cell that makes up certain types of connective tissue (supporting tissue that surrounds other tissues and organs).
Do hurthle cells mean cancer?
Hurthle (HEERT-luh) cell cancer is a rare cancer that affects the thyroid gland. The thyroid is a butterfly-shaped gland in the base of the neck. It secretes hormones that are essential for regulating the body’s metabolism. Hurthle cell cancer is also called Hurthle cell carcinoma or oxyphilic cell carcinoma.
Where is the stroma located?
The stroma is located in the chloroplast of a plant cell. The chloroplast is a membrane bound organelle which is found in the cytoplasm of a plant…
What is stroma or matrix?
Stroma is the colorless ground substance in the chloroplasts of plants. Within the stroma lies stacks of thylakoids, the sub-organelles, which are the site of photosynthesis. The ground substance of chloroplasts (stroma) represents the third and largest compartment of chloroplasts.
What is the function of stroma?
Stroma is the fluid filling up the inner space of the chloroplasts which encircle the grana and the thylakoids. In addition to providing support to the pigment thylakoids, the stroma are now known to contain chloroplast DNA, starch and ribosomes along with enzymes needed for Calvin cycle.
What is the survival rate for Hurthle cell cancer?
Five- and 10-year survival for the Hürthle cell carcinoma cohort was 85.1% and 71.1%, respectively. Mean survival time was 109 months (95% CI, 105-114 months).
What does stroma mean?
What is the role of stroma?
Tumor stroma undergoes concurrent changes with cancer cells and plays a causative role during initiation, progression, and metastasis of cancer development (1). In addition to promoting cancer development, tumor stroma is a major barrier to cancer drugs and plays a role in drug resistance.
What is the importance of stroma?
The stroma is essential for this because not only does it contain the enzymes necessary for carbon fixation, it also manages the chloroplast response to cellular stresses and signaling between various organelles. It plays an important role in both the light-dependent and light-independent reactions of photosynthesis.
What stromal means?
Listen to pronunciation. (STROH-muh) The cells and tissues that support and give structure to organs, glands, or other tissues in the body. The stroma is mostly made up of connective tissue, blood vessels, lymphatic vessels, and nerves.
Where are stroma cells?
Stromal cells, or mesenchymal stromal cells, are differentiating cells found in abundance within bone marrow but can also be seen all around the body. Stromal cells can become connective tissue cells of any organ, for example in the uterine mucosa (endometrium), prostate, bone marrow, lymph node and the ovary.
Are Hürthle cells normal in thyroid?
Hürthle cell nodule: thyroid nodule made of Hurthle cells, which are normal cells found in the thyroid together with the follicular cells.
Are all Hürthle cells malignant?
Like follicular tumors, there are both benign and malignant (cancerous) Hurthle cell tumors, and the pathologist evaluates the cells to look for differences that show an invasion of the capsule and the blood vessels. Benign Hurthle cell tumors are harmless and typically do not come back once they are removed.
Where does Hurthle cell cancer spread to?
Hurthle cell cancer certainly can spread into the lymph nodes of the neck. In fact, at least 20% of hurthle cell cancers will have spread to neck lymph nodes on their initial presentation.
What does stroma mean in biology?
Definition of stroma 1a : a compact mass of fungal hyphae producing perithecia or pycnidia. b : the colorless proteinaceous matrix of a chloroplast in which the chlorophyll-containing lamellae are embedded. 2a : the supporting framework of an animal organ typically consisting of connective tissue.