Areolar Tissue: Slide 4: Areolar Tissue Found underlying most epithelial tissue, forms the papillary region of the dermis and a layer called the Lamina propria of the Digestive Tract found just underlying the epithelium. In this slide, the areolar tissue is part of one of the serous membrane.
1 Type of tissue from which the cancer evolved, including carcinomas and sarcomas. 2  Carcinoma is a cancer that begins in the skin or in tissues that line or cover internal organs. 3  Sarcoma is a cancer of the bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Type of tissue from which the cancer evolved, including carcinomas and sarcomas. 2  Carcinoma is a cancer that begins in the skin or in tissues that line or cover internal organs. 3  Sarcoma is a cancer of the bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.
When neoplastic cells look like carcinoma cells, but the lesion is still confined and hasn't invaded nearby tissues, it is called carcinoma in situ. A newer term is noninvasive cancer. 2. In spite of the name, carcinoma in situ is a benign condition, since the malignant-appearing cells have not invaded nearby tissues.