Search Results for: spongiosis

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…idermal vesicles. The intraepidermal vesicles developed mostly as a consequence of ballooning of keratocytes, rather than of spongiosis. 10.32.4A: Vesicular dermatitis, subepidermal, lymphocytes predominant + 10.32.4B: Vacuolar alteration in company…

Histologic Diagnosis of Inflammatory Skin Diseases

Mucha-Habermann disease

…vesiculation develops mostly secondary to extensive ballooning affiliated often with reticular alteration and sometimes with spongiosis. Episodically, a blister is brought into being mostly by spongiosis. Subepidermal vesiculation may be a…

Histologic Diagnosis of Inflammatory Skin Diseases

Pityriasis alba

…on lymphocytes around venules of the superficial plexus, and lymphocytes scattered in the spinous zone in company with scant spongiosis. The spongiosis in both pityriasis alba and in flat lesions of mycosis fungoides does not eventuate in…

Histologic Diagnosis of Inflammatory Skin Diseases

Limitations of the Algorithmic Method

…dermoepidermal junction in conjunction with vacuolar alteration, the pattern is “interface dermatitis,” and the spongiosis and/or ballooning is understood to be a finding additional and expected. It should be recognized, too, that…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

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

Histologic Diagnosis of Inflammatory Skin Diseases

Photoallergic dermatitis

…nicopathologic Papules consist of perivascular infiltrates of inflammatory cells, edema of the papillary dermis, and foci of spongiosis; blisters are expressions of spongiotic vesiculation. Differential diagnosis histopathologic Phototoxic…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…n allergic contact dermatitis, photoallergic dermatitis, nummular dermatitis, and an “id” reaction, by virtue of spongiosis only. The situation here is different, namely, in addition to the predominant spongiosis, there also is…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…t. 10.5.36A: Vesicular dermatitis, intraepidermal and subepidermal + 10.5.36B: Lymphocytes and eosinophils in the dermis and spongiosis and ballooning in the epidermis + 10.5.36C + 10.5.36D = Response to an assault by an arthropod A vesicle induced…