Search Results for: isthmic-catagen cyst

Dermatoscopy of folliculosebaceous cystic hamartoma

Dermatoscopy of folliculosebaceous cystic hamartoma

…er, the surrounding stroma was fibrotic, with a high number of small vessels (Figure 3C). No hair shafts were present in the cystic cavity. These findings were consistent with a diagnosis of folliculosebaceous cystic hamartoma (FSCH). Figure 3. (A)…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Syringocystadenoma papilliferum Hidradenoma papilliferum 1. Not truly cystic (not a sac enclosed by epithelium) 1. Truly cystic (a sac enclosed completely or almost completely by epithelium) 2. Surface of skin papillated and hyperkeratotic 2….

Appearances may be deceiving

Appearances may be deceiving

…ripheral polymorphous vascular pattern showing the presence of dotted, linear and irregular vessels (Figure 2). A milia-like cyst was also observed in the inferior part of the lesion. An excisional biopsy was performed with 2 mm margins. The…

Histologic Diagnosis of Inflammatory Skin Diseases

Darier’s disease and simulators of it

…e related than are acantholytic dyskeratotic acanthoma and Darier’s disease. Warty dyskeratoma, a type of infundibular cyst whose lining is characterized by changes throughout its circumference of acantholytic dyskeratosis, initially was…

Differential Diagnosis in Dermatopathology

Discussions

…tes it, but in some epidermal nevi, a solitary keratosis (acantholytic dyskeratotic acanthoma), and an uncommon infundibular cyst (warty dyskeratoma). Those findings histopathologic occur also as an incidental change confined to a single rete ridge…

Differential Diagnosis in Dermatopathology

Discussions

…mors that have no distinguishing features. Not uncommonly, clinicians misinterpret both apocrine and eccrine mixed tumors as cysts and incise the lesions rather than attempt to excise them, a maneuver that often results in an artifactual cleft being…

Differential Diagnosis in Dermatopathology

Discussions

…ammatory process that arises secondary to injury, often a penetrating one, but also consequent to rupture of an infundibular cyst. It evolves through stages of granulation tissue accompanied by countless extravasated erythrocytes, granulomatous…

Differential Diagnosis in Dermatopathology

Discussions

…an arthropod (especially mosquito) “bite,” but sometimes secondary to a ruptured infundibulum or an infundibular cyst. Therefore, the term dermatofibrosis describes the lesion more aptly, conveying as it does that the process is a type…