Histopathological Studies on Dermal Fibrous Connective Tissue of Erythema ab Igne.

1993 ◽  
Vol 55 (1) ◽  
pp. 55-60
Author(s):  
Toshihide AKASAKA ◽  
Yuko IMAMURA ◽  
Yasuki MORI ◽  
Satoshi MAYAMA ◽  
Saiichi KON
Keyword(s):  
Connective Tissue ◽  
Fibrous Connective Tissue ◽  
Erythema Ab Igne ◽  
Histopathological Studies

Soft tissue reaction to ceramic ossicular replacement prosthesis

1987 ◽  
Vol 101 (9) ◽  
pp. 897-904 ◽  
Author(s):  
Etsuo Yamamoto ◽  
Michitaka Iwanaga
Keyword(s):  
Soft Tissue ◽  
Connective Tissue ◽  
Inflammatory Cell ◽  
Clinical Results ◽  
Tissue Reaction ◽  
Fibrous Connective Tissue ◽  
Soft Tissue Reaction ◽  
Fascia Graft ◽  
Ossicular Replacement ◽  
Replacement Prosthesis

AbstractSoft-tissue reaction to ceramic ossicular replacement prostheses (CORP) has been evaluated histologically in rabbits and humans. One week after implantation, severe inflammatory and foreign body reaction was observed in the fibrous connective tissue surrounding the prosthesis. Though some inflammatory response was seen after one month, after three months the CORP was surrounded by a layer of fibrous connective tissue without any foreigh body giant cell, histiocyte or inflammatory cell infiltration. Our satisfactory clinical results in humans without placing a cartilage between the CORP and the fascia graft may be due to the excellent softtissue compatibility of CORP, as demonstrated in this study.

scholarly journals Cartilaginous Choristoma of the Gingiva: A Rare Clinical Entity

2014 ◽  
Vol 2014 ◽  
pp. 1-4
Author(s):  
Ramalingam Suganya ◽  
Narasimhan Malathi ◽  
Subramani Vijaya Nirmala ◽  
Chinnaswami Ravindran ◽  
Harikrishnan Thamizhchelvan
Keyword(s):  
Connective Tissue ◽  
Histopathological Examination ◽  
Clinical Entity ◽  
Fibrous Connective Tissue ◽  
Rare Clinical Entity ◽  
Normal Cells ◽  
Connective Tissue Stroma

Choristomas are rare entities which are aggregates of microscopically normal cells or tissues in aberrant locations. They are a “heterotopic” rest of cells, as they appear as a tumor-like mass. Herein we report a case of cartilaginous choristoma in a 54-year-old male who presented with a swelling on right lower gingiva. The histopathological examination revealed features of a well circumscribed mass of mature cartilage in a dense fibrous connective tissue stroma.

Histologic Study of Homograft Cartilages Implanted in the Middle Ear

1988 ◽  
Vol 98 (6) ◽  
pp. 546-551 ◽  
Author(s):  
Etsuo Yamamoto ◽  
Michitaka Iwanaga ◽  
Manabu Fukumoto
Keyword(s):  
Foreign Body ◽  
Connective Tissue ◽  
Middle Ear ◽  
Foreign Body Reaction ◽  
Fibrous Connective Tissue ◽  
Histologic Study ◽  
Second Stage ◽  
The Matrix ◽  
Inflammatory Changes ◽  
Histologic Changes

We examined conditions of the micro-sliced homograft cartilages implanted in the middle ear, implanted cartilages removed at revision surgery or implanted cartilages removed at the second stage of staged tympanoplasty, both macroscopically and histologically. Macroscopically, the appearance and shape of the cartilages remained unchanged, with no evidence of erosion. There was no evidence of any foreign body reaction or rejection phenomenon. In general, no marked histologic changes of the matrix tissues were found, although chondrocytes showed degenerative changes. There was partial absorption of cartilage and replacement by fibrous connective tissue when inflammatory changes occurred in the middle ear. It is concluded that implanted homograft cartilage maintains its stiffness for more than 6 months in a healthy, aerated middle ear and appears to be clinically useful for tympanoplasty.

scholarly journals Enamel Matrix Derivative in Diffusion Chamber Implanted Subcutaneously in Rat Induces Formation of Fibrous Connective Tissue Containing Abundant Blood Vessels

In Vivo ◽  
2021 ◽  
Vol 35 (1) ◽  
pp. 313-317
Author(s):  
SATOSHI YOKOSE ◽  
YUKA KATO ◽  
KATSUTOSHI MATSUMOTO ◽  
PERRY R. KLOKKEVOLD ◽  
HENRY H. TAKEI ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Blood Vessels ◽  
Diffusion Chamber ◽  
Enamel Matrix Derivative ◽  
Fibrous Connective Tissue ◽  
Enamel Matrix ◽  
Matrix Derivative

scholarly journals Comparison of the effect of hemihydrate calcium sulfate granules and Cerabone on dental socket preservation: An animal experiment

2018 ◽  
Vol 12 (4) ◽  
pp. 238-244
Author(s):  
Naser Sargolzaie ◽  
Mehrnaz Rafiee ◽  
Hamideh Salari Sedigh ◽  
Reza Zare Mahmoudabadi ◽  
Hooman Keshavarz
Keyword(s):  
Connective Tissue ◽  
Calcium Sulfate ◽  
Inflammatory Cells ◽  
Histological Evaluation ◽  
Sign Test ◽  
Rank Test ◽  
Fibrous Connective Tissue ◽  
Socket Preservation ◽  
Tissue Proportion

Background. Early bone loss due to tooth extraction can be significantly reduced by socket preservation. The aim of this study was to compare the in vivo effects of hemihydrate calcium sulfate granules (an alloplastic material) and Cerabone (a bovine-derived xenograft) on socket preservation in dogs. Methods. Six male Mongrel dogs were randomly divided into 2 groups (n=3) for sacrificing and histological evaluation 4 and 8 weeks after a surgery. The second and third premolars on both sides of the lower jaw were extracted surgically. The sockets on one side were filled with Cerabone, and with calcium sulfate on the opposite side. In the slides, the ratio of the area of newly formed bone to the area of the entire cavity, and the ratio of the area of fibrous connective tissue to the area of the entire cavity were measured. The presence of inflammation was also examined. Wilcoxon signed-rank test, Sign test and McNemar test were used for statistical analyses (ɑ=0.05). Results. The means of new bone proportion were 11% and 8% for Cerabone and calcium sulfate, respectively (P=0.58). The means of connective tissue proportion were 29% and 33% for Cerabone and calcium sulfate, respectively (P=0.72). No inflammatory cells were observed in the Cerabone group, although 50% of the samples in the calcium sulfate group showed inflammation (P=0.50). Conclusion. The effects of calcium sulfate and Cerabone on socket preservation in dogs on bone formation, fibrous connective tissue and inflammation levels were not significantly different at 4- and 8-week postoperative intervals.

Subcutaneous reaction to silicone in ventriculoperitoneal shunts

1974 ◽  
Vol 41 (3) ◽  
pp. 367-371 ◽  
Author(s):  
Oscar Sugar ◽  
Orville T. Bailey
Keyword(s):  
Cerebrospinal Fluid ◽  
Connective Tissue ◽  
Fibrous Connective Tissue ◽  
Subcutaneous Implantation ◽  
Content Type ◽  
Ventriculoperitoneal Shunts ◽  
Silicone Tubing ◽  
Connective Tissue Sheath ◽  
Fine Print

✓Silicone tubing (Silastic) used for ventriculoperitoneal shunts induces a fibrous connective tissue sheath around the tubing in children and adults. Two children examined 8 and 3 years after subcutaneous implantation showed a complete tube of dense fibrous connective tissue around the silicone tubing. The reaction was entirely quiescent. These tubes of connective tissue were apparently capable of conveying cerebrospinal fluid for some months after the silicone tubing was disconnected from the pump or pulled out of the abdomen.

The case of fibrous osteodystrophy (Recklinghausen disease)

1937 ◽  
Vol 33 (1) ◽  
pp. 91-95
Author(s):  
N. A. Serebrennikov
Keyword(s):  
Bone Marrow ◽  
Connective Tissue ◽  
Giant Cell ◽  
Bone Tissue ◽  
Fibrous Connective Tissue ◽  
Cell Tissue ◽  
Recklinghausen Disease

In 1891, Recklinghausen first accurately described fibrous osteodystrophy, putting forward five main provisions that determine the essence of this disease: 1) replacement of cellular and adipose bone marrow with fibrous connective tissue; 2) resorption of bone tissue by lacunar suction; 3) metaplastic and partially osteoblastic neoplasm of osteoid and bone tissue; 4) tumor-like growths of fibrous and giant cell tissue, such as epulids, resembling giant cell sarcomas with a brown tint due to the presence of hemosiderin in the growths - "Braune tumoren" - by German authors.

scholarly journals Ossifying chondrolipoma of the tongue

2012 ◽  
Vol 69 (11) ◽  
pp. 1009-1012 ◽  
Author(s):  
Desanka Tasic ◽  
Milorad Pavlovic ◽  
Dragan Stankovic ◽  
Irena Dimov ◽  
Goran Stanojevic ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Connective Tissue ◽  
Dorsal Surface ◽  
Osseous Metaplasia ◽  
Fibrous Connective Tissue ◽  
Lamellar Bone ◽  
Cartilaginous Tissue ◽  
Unusual Lesion ◽  
Lipomatous Tumors

Introduction. Chondrolipomas and osteolipomas are uncommon variants of lipomatous tumors. Case report. We presented a 60-year-old woman with ossifying chondrolipoma of the tongue. Clinical examination revealed a firm nodular mass, located in the midline of the posterior region on the dorsal surface of the tongue. Histologically, the lesion was well-delimited showing areas of mature adipocytes arranged in lobules and separated by fibrous connective tissue septa, islands of mature cartilaginous tissue and osseous metaplasia. Trabeculae of lamellar bone within a fibro-fatty background were visible throughout the tumor. The cartilaginous areas merging centrally with bone formation and fatty marrow tissue were present, as well as the hematopoietic elements in the fatty marrow. The bone forming was found to be through both membranous and enchondral mechanisms. Conclusion. Ossifying chrondrolipoma with hematopoietic elements is extremely unusual lesion. This interesting entity should be kept in mind in the differential diagnosis of lingual lesions.

A Study of the Mass Transport Resistance of Glucose Across Rat Capsular Membranes

1987 ◽  
Vol 110 ◽  
Author(s):  
C. L. Freeman ◽  
K. G. Mayhan ◽  
G. J. Picha ◽  
C. K. Colton
Keyword(s):  
Connective Tissue ◽  
Mass Transport ◽  
Transport Properties ◽  
Critical Factor ◽  
Giant Cells ◽  
Fibrous Connective Tissue ◽  
Initial Attempt ◽  
Implant Surface ◽  
Tissue Factors ◽  
Foreign Surface

The interaction between a polymer or other foreign surface and soft tissue is determined by a variety of materials and tissue factors. After failing to engulf the foreign body, the classical response is to wall it off. First the site is invaded by macrophages and giant cells and then fibrous connective tissue is laid down. This fibrous connective tissue gradually replaces the cellular matrix and forms the capsule. The composition is mostly collagen and mucopolysaccharides with few cells in the mature capsule. It contains 75–80% water.When the implant surface represents a sensor and the transport of low molecular weight species across the capsule is necessary for meaningful measurement and response time, the mass transport resistance of the capsule may become a critical factor. This study represents an initial attempt to characterize the diffusion of glucose through fibrous capsules grown around silicone elastomer implants in a rat. Specifically, the study was designed to develop techniques to measure mass transport properties of tissue capsules, to use these techniques to determine effective glucose transport properties at two weeks, four weeks, and ten weeks after implant; and, to use these results along with histological examinations to gain an understanding of the factors which influence mass transport.

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