Related Experiment Video
Updated: Jul 19, 2025

08:49
A 3D Organotypic Melanoma Spheroid Skin Model
Published on: May 18, 2018
15.8K
Pleomorphic dermal sarcoma: it might be rare but it exists.
Konstantinos Seretis1, Antonios Klaroudas2, Vasiliki Galani2
1Department of Plastic Surgery, Medical School University of Ioannina, Greece.
Journal of Surgical Case Reports
|August 7, 2023
Summary
Pleomorphic dermal sarcoma (PDS) is a rare skin tumor. This case report details a large PDS on the scalp, emphasizing diagnostic challenges and management strategies for this uncommon mesenchymal neoplasm.
Area of Science:
- Dermatology
- Oncology
- Pathology
Background:
- Pleomorphic dermal sarcoma (PDS) is a rare mesenchymal neoplasm.
- PDS presents diagnostic challenges due to overlapping features with other skin tumors like squamous cell carcinoma, fibrosarcoma, desmoplastic melanoma, and atypical fibroxanthoma (AFX).
Observation:
- An 83-year-old male presented with a large, exophytic scalp lesion.
- The lesion was surgically excised with clear margins.
Findings:
- Pathologic examination confirmed the diagnosis of invasive pleomorphic dermal sarcoma.
- The case underscores the rarity of large PDS and the importance of accurate histopathological diagnosis.
Implications:
- Accurate differentiation of PDS from similar entities is crucial for appropriate patient management.
- Understanding the histological and molecular characteristics of PDS aids in refining treatment strategies.
- This case contributes to the literature on the clinical presentation and management of pleomorphic dermal sarcoma.
Related Concept Videos
Skin Cancer
4.2K
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
4.2K
Papillary Dermis
3.0K
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...
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...
3.0K
Reticular Dermis
2.6K
The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
2.6K
Abnormal Proliferation
4.6K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.6K
Desmosomes
5.4K
The term desmosome derives from the Greek words "desmo" and "soma" meaning "adhesion bodies." This structure was first observed during the late 1800s and described as small, dense nodules in the epidermis. Desmosomes are button-like structures that help form an interlinked network of intermediate filaments across the cells. These junctions are essential to hold cells together under mechanical stress and to maintain tissue integrity. Desmosomes are multi-protein...
5.4K

