Search Results for: hyperplasia

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…lammatory Skin Diseases: A Method By Pattern Analysis, 1978: superficial perivascular dermatitis + spongiosis + psoriasiform hyperplasia = spongiotic psoriasiform dermatitis (allergic contact or nummular dermatitis, fully developed). Figure 5.4…

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

A systemic disease, which manifests itself in the skin first as violaceous macules and patches that tend to progress to papules and plaques, and sometimes to nodules and tumors, all of which represent hyperplasia of endothelial cells.

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…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…dermis common 10. No dull pink globules within the epidermis as a rule 11. Hyperkeratosis, hypergranulosis, and spinous-cell hyperplasia usual 11. Hyperkeratosis not prominent; no hypergranulosis usually; little epidermal hyperplasia 12. No evidence…

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

A systemic disease, which manifests itself in the skin first as violaceous macules and patches that tend to progress to papules and plaques, and sometimes to nodules and tumors, all of which represent hyperplasia of endothelial cells.