Related Experiment Videos
Rapidly growing hemorrhagic papule on the cheek of a 54-year-old man
Marianne Junck1, Christopher J Huerter, Deba P Sarma
1Department of Dermatology, Creighton University Medical School, Omaha, USA. debasarma@creighton.edu
Abstract:
A 54-year-old man sought medical attention for a growth on his right cheek that had been present for three months. The growth began as a small, brown “pimple” that gradually increased in size over time. Physical examination revealed a 9 mm well-circumscribed erythematous nodule with a hemorrhagic crust. On dermoscopy, the lesion was completely vascular appearing, with no pigment visualized. A clinical diagnosis of pyogenic granuloma was made. The lesion was biopsied and histopathologic examination revealed a 2.8 mm thick, Clark level IV, ulcerated, amelanotic nodular melanoma. Because the literature contains reports of nodular melanoma mimicking the presentation of a pyogenic granuloma, all such lesions should be biopsied for histopathologic diagnosis.
Related Concept Videos
Papillary Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen and...
Endocarditis II: Clinical Features of Infective Endocarditis
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Peptic Ulcer
Epistaxis
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...