Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Occlusion Triad?

…,” a reference to the vague resemblance of infundibular cysts of acne conglobata to balls of different sizes. The image, however, conveys no sense for the nature fundamental of the disease, to wit, a suppurative infundibulitis accompanied often…

Differential Diagnosis in Dermatopathology

Trichoepithelioma vs. Infundibulocystic basal-cell carcinoma

…solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with scars of different types, e.g., keloidal or atrophic, including cri…

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…

Differential Diagnosis in Dermatopathology

Dilated pore vs. Pilar sheath acanthoma

…solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with scars of different types, e.g., keloidal or atrophic, including cri…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…lia 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 elas…

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…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Primary and Secondary Lesions?

…esicles, bullae, pustules, plaques, atrophic plaques, wheals, cysts. Secondary (modified) lesions: scales (desquamation), crusts (scabs), erosions, ulcers, fissures, excoriations.” Goodheart HP. Illustrated glossary of basic skin lesions. In:…

Histologic Diagnosis of Inflammatory Skin Diseases

Acquired epidermolysis bullosa

…ppermost part of the dermis in some lesions Tiny infundibular cysts (milia) Correlation clinicopathologic A blister forms beneath the epidermis and, by electron microscopy, is seen to be positioned in the region below the lamina densa. A scar observ…