Search Results for: cysts

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Differential Diagnosis in Dermatopathology

Discussions

…fundibular rete ridges of dilated pore are devoid of ducts or cysts, whereas the lobules of pilar sheath acanthoma usually contain structures like sebaceous ducts and cysts that house cornified cells. Last, dilated pore shows no evidence of follicula…

Differential Diagnosis in Dermatopathology

Metastatic carcinoma from a breast vs. Morpheiform basal-cell carcinoma

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesio…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Tricho-, pilo-, folliculo- ?

…. If a student is to understand the real nature of follicular cysts, hamartomas, and neoplasms, it is essential that differences be appreciated between the names of those lesions, on one hand, and the actual character of them, on the other. A first s…

Differential Diagnosis in Dermatopathology

Trichoepithelioma vs. Infundibulocystic basal-cell carcinoma

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesio…

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…scum contagiosum, fibroepithelial polyps, epidermal inclusion cysts, and analogues in obviousness, thereby prompting them either to refrain from “reading out” sections of skin altogether or to do it with reluctance and distaste. Lever&#82…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

…irm papules, and on the nose by a combination of infundibular cysts and sebaceous hyperplasia (rhinophyma). Pyoderma gangrenosum often starts out as suppurative infundibulitis and galvanizes to become extensive suppurative dermatitis and panniculitis…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…milia present often 9. No comedones or milia 10. Infundibular cysts and sinus tracts may be accompaniments 10. No infundibular cysts or sinus tracts 11. Telangiectasias not remarkable 11. Telangiectasias often striking 12. Little or no solar elastosi…

Differential Diagnosis in Dermatopathology

Discussions

…s, pustules, and nodules the latter representing infundibular cysts which, on rupture, became inflamed. When the inflammatory process is florid, it may eventuate, in years, in pitted or hypertrophic scars or in tenacious sinus tracts of “acne c…

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