Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ytes in association with scattered lymphocytes = Traumatic fat necrosis ┬áThe granulomatous lobular panniculitis and fibrosing dermatitis are a consequence of a procedure surgical performed at this site. The term “traumatic fat necrosis” i…

Histologic Diagnosis of Inflammatory Skin Diseases

Pancreatic panniculitis

…eatic panniculitis Synonyms Pancreatitis with subcutaneous fat necrosis Systemic nodular fat necrosis Pancreatic enzyme panniculitis Nodular fat necrosis Weber-Christian syndrome of pancreatic origin Presentation stereotypical Age and sex Fourth to s…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Wegener’s Granulomatosis?

“Inside the nose besides extensive necrosis, there is a cell-rich granulomatous tissue with granulomatous epithelioid cell foci which surround the vessels. . . . In both lungs: infarct-like necrosis in which one finds severe changes in the ve…

Histologic Diagnosis of Inflammatory Skin Diseases

Atypical mycobacterial infections

…in the dermis and sometimes in lobules in the subcutaneous fat Necrosis of adipocytes in lobules varies from slight to marked Granulomatous inflammation, i.e., epithelioid histiocytes in collections surround zones of suppuration and fat necrosis Mode…

Histologic Diagnosis of Inflammatory Skin Diseases

Hypodermitis sclerodermiformis

…mis, but in septa widened considerably in the subcutaneous fat Necrosis of adipocytes of variable extent manifested by foam cells, membranous fat necrosis, and fat “microcysts” in shrunken lobules Lobules in the subcutaneous fat constrict…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Endothelial Swelling?

…p, where it will join still-smoldering terms such as fibrinoid necrosis, necrosis of collagen, and toxic hyaline, and on which should be thrown eczema, parapsoriasis, and dysplasia. The gerund swelling implies progression and denotes an action that c…

Histologic Diagnosis of Inflammatory Skin Diseases

Cold panniculitis

…221; Differential diagnosis histopathologic Subcutaneous fat necrosis of the newborn is associated with needle-shaped clefts in the cytoplasm of histiocytes especially in fat lobules. Traumatic fat necrosis is marked by patchy infiltrates of foam…

Differential Diagnosis in Dermatopathology

Discussions

…stic of the end stage of lupus profundus is preceded by florid necrosis of adipocytes en masse. Because of the special character of adipocytes in general, necrosis of them cannot be gauged by the same criteria applicable to other cells. In other cell…