Search Results for: infundibuloapocrine-sebaceous-follicular unit

Dermatology Practical & Conceptual

Dermoscopic clues to diagnose acantholytic dyskeratosis

Case presentations Case 1 A 61-year-old man presented with multiple small, reddish, eroded papules located on his chest (Figure 1A). Histopathologic examination revealed the typical findings of Grover’s disease. Figure 1. (A) Clinical examination of…

Dermatology Practical & Conceptual

Strategies for early recognition of cutaneous melanoma-present and future

…localized in palmoplantar skin but may also involve the nail unit. ALM represents the most common growth variant in dark-skinned (e.g., Asian) populations. Due to the architecture of palmoplantar skin with parallel ridges and furrows, the margins ar…

Histologic Diagnosis of Inflammatory Skin Diseases

Introduction

…al components of the skin, namely, epidermis, hair follicles, sebaceous units, apocrine units, eccrine units, nail units, melanocytes, Langerhans” cells, Merkel cells, structures of the dermoepithelial interface, blood vessels, lymphatics, coll…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous Fat

…or is not visualizable at all in a random section. The basic unit of the subcutaneous fat is a collection of adipocytes that seem to be cohesive, i.e., a primary microlobule. An aggregation of primary microlobules, termed a secondary lobule, is surr…

Histologic Diagnosis of Inflammatory Skin Diseases

Selection of the Method for Surgery

…egard to biopsy of inflammatory diseases that affect the nail unit, the following principles obtain: (1) as a rule, a specimen should be taken from the nail matrix; (2) when onychomycosis is suspected clinically, keratotic material situated beneath t…

Dermatology Practical & Conceptual

An atypical pigmented lesion on the nose

The patient A 56-year-old Caucasian woman, with skin phototype III, presented with an asymptomatic, slow-growing, gray-black plaque on her nose. The lesion had appeared almost 6 months prior, was 10 x 5 mm in size and presented with a paler, raised…

Histologic Diagnosis of Inflammatory Skin Diseases

Dermoepithelial Interface

…nd all epithelial structures of adnexa, i.e., hair follicles, sebaceous units, apocrine units, and eccrine units. Moreover, the vasculature and Schwann cells of nerves also are surrounded by a basement membrane. Figure 1.70 Basement membrane zone as…

Dermatology Practical & Conceptual

An atypical pigmented lesion on the nose—Answer

Below find the answer and discussion to the quiz by Savoia et al. presented in the previous issue of Dermatology Practical & Conceptual (http://dx.doi.org/10.5826/dpc.0401a12). Diagnosis Pigmented cutaneous squamous cell carcinoma (PCSCC). Clini…

Dermatology Practical & Conceptual

Dermatoscopy: A nodule on a woman’s leg

Clinical presentation A 61-year-old white female presented with a 7 x 4 mm nodule that was firm to palpation on her right leg (Figure 1) of 5 months’ duration. The lesion was not painful, but bleeding with minimal trauma. Figure 1. The lesion is loc…