Search Results for: hyperplasia

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…th lipid or hemosiderin pigment. Touton giant cells may be present.” From L, Assaad D. Neoplasms, pseudoneoplasms, and hyperplasia of supporting tissue origin. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds. Dermatology in General…

Differential Diagnosis in Dermatopathology

Discussions

…s not known. In rhinophyma, the most dramatic presentation of rosacea, bulbous enlargement of a nose results from tremendous hyperplasia of sebaceous lobules and formation of many infundibular cysts that rupture, thereby sending contents of…

Differential Diagnosis in Dermatopathology

Pyogenic granuloma vs. Bacillary angiomatosis

An hemangioma is a benign neoplasm of blood vessels, a vascular malformation is an aberration in development of one or more major vascular structures, and an ectasia is a dilation of a preexisting end vessel.

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous Horn?

…;cutaneous horn” is not satisfactory. The latter description that avoids the crucial issue of whether a condition is a hyperplasia (e.g., verruca vulgaris), a benign neoplasm (e.g., seborrheic keratosis), or a malignant neoplasm (e.g., solar…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Endothelial Swelling?

…duals. AIDS 1997;11(9):1119–22. “Endoarteritis obliterans is manifested by endothelial cell swelling, endothelial hyperplasia and expansion of vessel walls by edema and a lymphohistiocytic infiltrate with luminal attenuation.”…

Non-choroidal yellow melanoma showing positive staining with Sudan Black consistent with the presence of lipofuscin: a case report

Non-choroidal yellow melanoma showing positive staining with Sudan Black consistent with the presence of lipofuscin: a case report

…the case reported here. Another published cause of dermatoscopic yellow is the presence of sebaceous structures in sebaceous hyperplasia [15], nevus sebaceous and sebaceous adenoma [16]. Bryden et al. attributed the yellow color in sebaceous…

Ocular Inflammation

Ocular Inflammation

…to brake up and to evaporate, thereby resulting in dryness of the ocular surface.”[18] Occasionally extensive squamous hyperplasia of the Meibomian duct has been reported in rosacea.[19] Zengin et al., in 1995, confirmed again that patients…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…ndibular epidermis typical of lichen planus are exaggerated in response to longstanding rubbing. Instead of jagged epidermal hyperplasia, which is expected in papules of lichen planus, there is bulbous infundibular acanthosis, which is an…