Search Results for: fibrocytes

Histologic Diagnosis of Inflammatory Skin Diseases

Erythema elevatum diutinum

…he papillary or the periadnexal dermis usually Late Short fascicles of thin wiry bundles of collagen accompanied by numerous fibrocytes in the reticular dermis; fascicles often assume an interwoven pattern at sites where previously there had been…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nevus?

…entirely to one another. Moreover, the cells of a nevus, as the term is employed generally, may be melanocytes, keratocytes, fibrocytes, endothelial cells, or adipocytes. So-called nevus cells are abnormal melanocytes. To complicate the matter…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…tous inflammation and fibrosis. 10.38.3A: Fibrosing dermatitis and panniculitis, septal + 10.38.3B: Increased number of thin fibrocytes, coarse bundles of collagen oriented parallel to the skin surface, and histiocytes, some of them multinucleate,…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…Perivascular and interstitial dermatitis + 10.52.1B: Lymphocytes, plasma cells, neutrophils, and eosinophils in company with fibrocytes and histiocytes, the latter being predominant = Interstitial granulomatous dermatitis with arthritis Some…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Myxoma?

…cinosis, for example, it is mostly infundibular and sebaceous epithelium that produces mucin, whereas in pretibial myxedema, fibrocytes do it, presumably in concert with mast cells. Nonepithelial, or connective tissue, mucin is dominant in those…

Differential Diagnosis in Dermatopathology

Discussions

…matofibromas, however, erythrocytes are not arrayed in any particular pattern in relationship to nearby oval histiocytes and fibrocytes, but are clustered, often in association with pools of serum. In an evolving dermatofibroma, extravasated…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…te of histiocytes (dermatofibroma), and sometimes at a very late stage the fibrosis is affiliated with a decreased number of fibrocytes in conjunction with “homogenization” of bundles of collagen (subepidermal nodular sclerosis). The red…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…gins in septa with predominance of neutrophils, progresses to preponderance of histiocytes, and ends with a near monopoly of fibrocytes that are responsible for striking fibrosis. In the process, the septa become widened markedly, and, concurrent,…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…he surface of the skin (i.e., parallel to the long axis of the anomaly elongate) 2. Collagen bundles arranged haphazardly 3. Fibrocytes normal cytologically not usually increased in number 3. Fibrocytes often large, stellate, or multinucleate are…