Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…Eosinophilic cellulitis, eosinophilic fasciitis, eosinophilic folliculitis, eosinophilic panniculitis, and eosinophilic spongiosis describe accurately those pathologic processes. Reason: The cellulitis, fasciitis, folliculitis, panniculitis, and spo…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s in infundibula and sebaceous lobules = Eosinophilic pustular folliculitis Because eosinophils are more conspicuous than neutrophils in this condition, it has been termed “eosinophilic pustular folliculitis.” It seems, however, to be a s…

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

In 1963, the year that one of us (A.B.A.) began a residency in dermatology, Walter Lever’s textbook, Histopathology of the Skin, was in its third edition and was deemed, universally, to be “the bible” of dermatopathology. To a firs…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Reactive Perforating Collagenosis?

“A case is presented exhibiting an unusual reaction of the skin to superficial trauma. In response to minor trauma, certain changes take place within the papillary layer of the corium characterized by affinity of the connective tissue for he…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Degeneration Syndrome?

…;The scarring alopecia resulting from destructive inflammatory folliculitis (including folliculitis decalvans), as well as that following chronic tractional alopecia, hot comb alopecia, and the follicular degeneration syndrome, may create very simila…

Dermatology Practical & Conceptual

From the Dermatologikum Hamburg: Quiz

The patient A 78-year-old man presented with a keratotic and crusted plaque on the scalp (Figure 1). He had a history of multiple actinic keratoses with various attempts at treatment. The lesion was excised under the clinical diagnosis of squamous c…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Pseudopelade?

…her: first one, our type, which is characterized by absence of folliculitis and to which we have given the name pseudopelade; the second type is that of Quinquaud which is characterized by discrete folliculitis, and the third one, sycosis lupoid, is…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…Examples of this phenomenon, termed badly “eosinophilic folliculitis” (the condition, actually, is an infundibulitis, not a folliculitis, and it is not eosinophilic, but rather is dominated by eosinophils), are encountered in Ofuji&#8217…