Search Results for: peri-infundibulitis

Differential Diagnosis in Dermatopathology

Discussions

…in common. Both may be associated with a superficial and deep perivascular and lichenoid infiltrate of mononuclear cells, acanthosis, parakeratosis, and erosion or ulceration. Erythrocytes are extravasated in the dermis, neutrophils and lymphocytes m…

Differential Diagnosis in Dermatopathology

Discussions

…anus share several findings histopathologic, among them being perivascular, peri-infundibular, and perifollicular infiltrates of lymphocytes, vacuolar alteration at the junction between infundibula and dermis, infundibula plugged by orthokeratotic co…

Differential Diagnosis in Dermatopathology

Discussions

…of the dermis and the epidermis. Both are characterized by a perivascular infiltrate of lymphocytes and histiocytes, lymphocytes and vacuolar alteration at the dermoepidermal junction, necrotic keratocytes, and parakeratosis. Lymphocytes usually pre…

Differential Diagnosis in Dermatopathology

Discussions

…d epidermal basement membrane in discoid lupus erythematosus, peri-infundibular fibrosis in lichen planus, and melanophages situated beneath a thickened basement membrane in discoid lupus erythematosus, but scattered throughout a fibrotic papillary d…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…he dermis as a rule 4. Moderately dense superficial and deep, perivascular and interstitial, mixed-cell infiltrate; sometimes superficial only 4. Sparse superficial and deep perivascular and predominantly interstitial mixed-cell infiltrate; sometimes…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…lymphocytes usually sparse 6. Infiltrate of lymphocytes often peri-infundibular and perifollicular 6. Infiltrate of lymphocytes has no predilection for infundibulofollicular units 7. Infiltrate may be lichenoid 7. Infiltrate not lichenoid 8. Sideroph…

Ocular Inflammation

Ocular Inflammation

…elangiectases. On sites other than the midface like forehead, perioral, and periocular regions, however, erythematous papules and papulopustules may be unaccompanied by telangiectases. In contrast to acne, patients with rosacea have no comedones. His…

Differential Diagnosis in Dermatopathology

Discoid lupus erythematosus vs. Dermatomyositis

…pustules. It rapidly extends to become ulcers marked at their periphery by boggy tissue. The skin disease is associated commonly with inflammatory bowel disease, especially ulcerative colitis, and sometimes with rheumatoid arthritis, paraproteinemia,…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…rophic lichen planus 1. Granular zone thickened, but not with periodicity and in wedge shape 1. Granular zone often thickened focally at nearly periodic intervals and in wedge shape, especially in infundibula 2. Infundibula, when acanthotic, not mark…

Differential Diagnosis in Dermatopathology

Mucha-Habermann disease vs. Secondary syphilis

…pustules. It rapidly extends to become ulcers marked at their periphery by boggy tissue. The skin disease is associated commonly with inflammatory bowel disease, especially ulcerative colitis, and sometimes with rheumatoid arthritis, paraproteinemia,…