Search Results for: comedo

Histologic Diagnosis of Inflammatory Skin Diseases

Acne vulgaris

…extend in bloated form into the subcutaneous fat. In short, acne vulgaris may be papular, pustular, or cystic, and devoid of comedones. All lesions of acne vulgaris, whether papular, pustular, or cystic, are centered in infundibular epidermis, not…

Differential Diagnosis in Dermatopathology

Discussions

…a comedo, dilated pore contains cornified cells arranged in basket-woven and laminate pattern, whereas cornified cells in a comedo are arranged compactly. Furthermore, comedones do not have rete ridges along the sides of the infundibular…

Extraocular sebaceous carcinoma: a series of three cases with varied presentation

Extraocular sebaceous carcinoma: a series of three cases with varied presentation

…200). [Copyright: ©2012 Panjwani et al.] Figure 3. (A) Varied morphology and patterns of the tumour cells: solid nests , (B) comedonecrosis and (C) cords with hyalinisation (H&E x10). (D) IHC for EMA showing characteristic vacuolated cytoplasm…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Keratosis Lichenoides Chronica?

…yringocentric. Sometimes, papules had an atrophic center accompanied by tiny erosions or crusts. Also encountered often were comedo-like lesions. Keratotic papules and plaques could be discrete or, by way of confluence of them, form linear or…

Histologic Diagnosis of Inflammatory Skin Diseases

Mycosis fungoides

…ll collections Deposits of mucin in infundibular epithelium often (epithelial mucinosis of “alopecia mucinosis”) Comedo-like plugs of infundibula sometimes Eosinophils in the interstitium of the reticular dermis, at times many of them…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Occlusion Triad?

…tion an inflammatory process that all too often is the bane of adolescence. A correlate of the clich? is that the finding of comedones allows acne vulgaris to be distinguished clinically from other types of acne, such as “steroid acne”…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine Neoplasms?

…s Eccrine duct proliferation Eccrine-centered nevus Eccrine angiomatous hamartoma Syringofibroadenoma or acrosyringeal nevus Comedo nevus of the palm, linear eccrine nevus with comedone, porokeratotic eccrine ostial nevus or porokeratotic eccrine…

Differential Diagnosis in Dermatopathology

Discussions

…, it may eventuate, in years, in pitted or hypertrophic scars or in tenacious sinus tracts of “acne conglobata.” Comedones traditionally have been described as “open” (blackheads) or “closed” (whiteheads). In…

Pigmented eccrine poroma: dermoscopic and confocal features

Pigmented eccrine poroma: dermoscopic and confocal features

…lar vessels. Minagawa et al. [3] valuated PEP, describing 12 cases in which vascular structures, globule-like structures and comedo-like openings were the hallmarks. More recently, it has been shown that eccrine poroma might mimic several benign and…

In vivo reflectance confocal microscopy features of a melanoacanthoma

In vivo reflectance confocal microscopy features of a melanoacanthoma

…pathologically proven melanoacanthomas. All eight lesions had at least one dermoscopic feature associated with SK, including comedo-like openings, sharp demarcation, more than two milia-like cysts, ridges and fissures, moth-eaten borders, or hairpin…