Search Results for: infundibulum

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…8221; “peri-infundibulosis,” and “perifolliculosis” + 11.14.11B: Lymphocytes in the dermis and in an infundibulum replete with mucin = Mycosis fungoides, alopecia mucinosa expression Epithelial mucinosis is the sine qua non…

Differential Diagnosis in Dermatopathology

Discussions

…r’s disease. The “perforation” seen by microscopy is an inevitable consequence of suppuration in a dilated infundibulum in which neutrophils are so numerous that they cause a breach to form in the wall of the funnel-shaped…

Differential Diagnosis in Dermatopathology

Perforating folliculitis vs. Elastosis perforans serpiginosa

A hyperplasia of infundibular epithelium consequent to the effects of infection by a pox virus and manifesting itself clinically as one or more skin-colored, smooth-surfaced, dome-shaped papules, each with a central umbilication filled with horny…

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

…(H&E) Crowded solitary and nested confluent atypical melanocytes within the ulcerated and crusted surface epidermis and infundibulum overlying dermal severe solar elastosis, patchy lymphocytes and numerous melanophages. (D) Melan A outlines…

Histologic Diagnosis of Inflammatory Skin Diseases

Acne vulgaris

…ous secretion and sebum on the other. Acne vulgaris, when pustular, is a suppurative infundibulitis, not a folliculitis, the infundibulum being epidermal, not follicular. As a rule, the follicle is unaffected in acne vulgaris. Sebaceous secretion is…

Histologic Diagnosis of Inflammatory Skin Diseases

Arthropod assaults

…ich, not surprisingly, sometimes is caught up in the process. Not uncommonly, the actual site of the bite is an ostium of an infundibulum, that structure containing delicacies loved by insects, among them being bacteria, yeasts, mites, and lipids…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…er being the result of rubbing forcefully a discrete locus made itchy by virtue of the effects of neutrophils spewed from an infundibulum on nerve endings, the situation occurring mostly in patients on renal dialysis and in some with diabetes, the…