Search Results for: peri-infundibulitis

Dermatology Practical & Conceptual

Papillary adenocarcinoma in situ of the skin: report of four cases

…00); (C) High power view showing the presence of necrosis and peripheral myoepithelial cell layer (H&E, x400). [Copyright: ©2014 Chen et al.] Figure 3. Case 3, papillary adenocarcinoma in situ. Immunocytochemical stain for P63 (A, x400) and Ki67…

Dermatology Practical & Conceptual

An asymptomatic cluster of violaceous papules

…ncisional biopsy from one of the lesions involving lesion and peri-lesional skin was performed. Figure 1. Multiple violaceous papules on the right lateral thigh. [Copyright: ©2015 Yaghoobi et al.] Discussion Dermatopathological examination revealed h…

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,…

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

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

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

…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…