Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s + 10.9.4B: A lymphoplasmacytic infiltrate and extensive fibroplasia = Acrodermatitis chronica atrophicans This process can be told to be active still by virtue of the density of the lymphoplasmacytic infiltrate and inferred to be long standing…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…nter. The lesion is firm (fibroma durum) because of extensive fibroplasia that in the upper part of it sometimes consists of keloidal collagen. In sum, clinically, histopathologically, and biologically, dermatofibroma is an inflammatory process and n…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…nce of suppuration, granulomatous inflammation, and extensive fibroplasia, the latter manifested clinically as a scar. The appearance of scars that follow on suppurative infundibulitis of acne vulgaris varies; it ranging from “ice pick” a…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Common Baldness—an Inflammatory Disease?

…They thought it was the effects of T lymphocytes that induced fibroplasia in sheaths of follicles and, as a consequence, trichogenesis disturbed profoundly. Inflammatory cells may be seen in otherwise normal scalps secondary to trauma of various kind…

Differential Diagnosis in Dermatopathology

Atrophic lichen planus vs. Atrophic discoid lupus erythematosus

…ntly from external trauma, usually in the form of a puncture or a yank of a “hang nail.” In time, the proliferation of vessels ceases, there is progressive fibroplasia, and the then gray or white papule shrinks and eventually disappears….

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Pustular Dermatitis

…a new addition to the already longstanding peri-infundibular fibroplasia. Figure 5.315 A&B. Origin of this suppurative dermatitis of pyoderma gangrenosum: rupture of an infundibular cyst. The extensive suppuration early in the course of this…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ry of “sclerosing fibroma,” which is a pattern of fibroplasia that occurs in a variety of circumstances, one of those being dermatofibroma. 10.20.13A: Nodular dermatitis, fibrohistiocytic + 10.20.13B: Keloidal collagen in haphaz…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…n inference that derives from the vertical orientation of the fibroplasia. 10.96.7A: Fibrosing dermatitis + 10.96.7B: Plump fibrocytes and fibrillary bundles of collagen parallel to the skin surface = Scar, fully developed  Plump fibrocytes…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…is + 10.94.7B: A widely dilated infundibulum enveloped by fibroplasia = Rosacea, rhinophymatous  At a much earlier stage, sebaceous glands were more numerous and infundibular cysts were even more formidable. The cysts ruptured, suppuration and gr…