Search Results for: ballooning

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…lteration, a smudged appearance of that junction, a thickened basement membrane), in the viable epidermis (e.g., spongiosis, ballooning, acantholysis), and/or in the cornified layer (e.g., parakeratosis in mounds that house neutrophils,…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ar stage The vesicle in incontinentia pigmenti comes into being as a rule solely by spongiosis. This example is exceptional; ballooning is present as well as spongiosis. 10.50.5A: Perivascular dermatitis, psoriasiform + 10.50.5B: Many dyskeratotic…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Subcorneal Blistering Diseases?

…analogous situation obtains in some intraepidermal blistering diseases typified either by extensive spongiosis or inordinate ballooning. An example of the former is severe allergic contact dermatitis that begins as intraepidermal vesicles that, in…

Histologic Diagnosis of Inflammatory Skin Diseases

Behçet’s Disease

…n the wall of venules and/or thrombi in the lumen of venules in some lesions Intraepidermal vesicles sometimes, secondary to ballooning Ulceration episodic secondary to vasculitis Correlation clinicopathologic Acneiform papules are not like those of…

Differential Diagnosis in Dermatopathology

Discussions

…, individual necrotic keratocytes in the surface epidermis and upper portion of epithelial structures of adnexa, spongiosis, ballooning, lymphocytes contiguous to many necrotic keratocytes, clusters of necrotic keratocytes in the surface epidermis…

Balloon cell melanoma in primary care practice: a case report

Balloon cell melanoma in primary care practice: a case report

…f balloon cells has been confirmed both by immunohistochemical studies [12] and electron microscopy, which revealed that the ballooning change was due to progressive vacuolisation of melanosomes [13,14,15]. BCMM is characterised by aggregations of…

Histologic Diagnosis of Inflammatory Skin Diseases

Livedo vasculitis

…or more venules Many erythrocytes extravasated in the upper part of the dermis Edema of the papillary dermis Spongiosis and ballooning sometimes resulting in intraepidermal vesiculation Epidermis necrotic often Late Sparse infiltrate of lymphocytes…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…l (basket-woven, laminate, and compact orthokeratosis) 2. Intra-epidermal vesiculation 2. No intra-epidermal vesiculation 3. Ballooning of keratocytes 3. No ballooning of keratocytes 4. Reticular alteration of the epidermis 4. No reticular…