Search Results for: fibrocytes

Differential Diagnosis in Dermatopathology

Discussions

…extend deep into the reticular dermis and, episodically, into the subcutaneous fat. As a consequence of the proliferation of fibrocytes and the accompanying fibroplasia, some normal folliculo-sebaceous units may be destroyed, but eccrine structures…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ue Coarse bundles of collagen in random array are a consequence of the effects of longstanding infiltrates of lymphocytes on fibrocytes. Even in the absence of that change, the findings pictured are those of mycosis fungoides. 11.14.41A:…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…in sections stained by hematoxylin and eosin 8. No clefts in globules of amyloid 8. Clefts in nodules of colloid 9. Stellate fibrocytes and melanophages associated intimately with globules of amyloid 9. A few thin fibrocytes associated with colloid,…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…atrophic lichen planus contains coarse bundles of collagen arranged haphazardly, in conjunction with an increased number of fibrocytes, variable numbers of melanophages, and a sprinkling of lymphocytes. The cornified layer may have returned to its…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Degeneration Syndrome?

…esent, i.e., thin suprapapillary plates and inconspicuous granular layer Epidermal changes not prominent Increased number of fibrocytes around the upper part of a follicle, but no concentration of fibrocytes at the isthmus Lamellar fibroplasia at…

Differential Diagnosis in Dermatopathology

Discussions

…than they are in findings histopathologic. In a sense, however, both are cutaneous mucinoses in which an increased number of fibrocytes and mast cells are present in zones that house acid mucopolysaccharides. Although pretibial myxedema may develop…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Necrobiosis?

…ecrobiosis as necrosis of collagen, rather than as degeneration of that fibrous protein. Collagen is a fiber and, unlike the fibrocytes that produce it, cannot undergo necrosis; only viable cells can suffer necrosis. The tinctorial and structural…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

-oid?

…ndothelial cells that are said to resemble histiocytes cytologically (but a tenet basic of histology holds that histiocytes, fibrocytes, and endothelial cells may be indistinguishable from one another morphologically). Furthermore, the appellation…