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 © 2001-2009, DermAtlas | Image Name: | Hemangioma_1_030528 | File Type: | jpg | |
| Diagnosis: | HEMANGIOMA | Category: | lumps & bumps (plaques, nodules, tumors) | ||
| Body Site: | face / cheek | Age: | 53 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | There is a well-circumscribed non-encapsulated collection of thick-walled vessels in the upper and mid dermis, most of which are lined by endothelium and have a fibromuscular wall which contains elastic fibers. | ||||
| Comments: | This skin biopsy was obtained from a 3 mm red papule on the right jaw of a 53-year-old man. The histologic findings were typical of a hemangioma. | ||||
 © 2001-2009, DermAtlas | Image Name: | Keratosis_Pilaris_1_030514 | File Type: | jpg | |
| Diagnosis: | KERATOSIS PILARIS / ICHTHYOSIS, VULGARIS | Category: | papulosquamous eruptions | ||
| Body Site: | Age: | 0 | |||
| Contributor: | Donna Bilu, MS | ||||
| Description: | A keratin plug is seen filling the opening of a hair follicle and protruding above the surface. | ||||
| Comments: | This biopsy of a follicular papule on the upper arm shows histoligic findings consistent with keratosis pilaris. | ||||
 © 2001-2009, DermAtlas | Image Name: | Nevus_Sebaceous_3_030514 | File Type: | jpg | |
| Diagnosis: | NEVUS SEBACEUS / HAMARTOMA | Category: | neoplasm, benign / congenital malformation | ||
| Body Site: | forehead | Age: | 19 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | Sections of skin show a lobular basophilic tumor without connection to the epidermis. The tumor consists of deeply basophilic cells arranged in nests with peripheral palisading. Tumor stromal clefting and mucin deposition are not identified. The surrounding stroma is loose and paucicellular. Mitotic figures are readily identified. Here, apocrine glands are seen. | ||||
| Comments: | These findings are diagnostic of a nevus sebaceous. | ||||
| Related Images: | All related Images Nevus_Sebaceous_1_030514 Nevus_Sebaceous_2_030514 | ||||
 © 2001-2009, DermAtlas | Image Name: | Nevus_Sebaceous_2_030514 | File Type: | jpg | |
| Diagnosis: | NEVUS SEBACEUS | Category: | neoplasm, benign | ||
| Body Site: | forehead | Age: | 19 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | Sections of skin show a lobular basophilic tumor without connection to the epidermis. The tumor consists of deeply basophilic cells arranged in nests with peripheral palisading. Tumor stromal clefting and mucin deposition are not identified. The surrounding stroma is loose and paucicellular. Mitotic figures are readily identified. Apocrine glands are seen. | ||||
| Comments: | These findings are diagnostic of a nevus sebaceous. | ||||
| Related Images: | All related Images Nevus_Sebaceous_1_030514 Nevus_Sebaceous_3_030514 | ||||
 © 2001-2009, DermAtlas | Image Name: | Nevus_Sebaceous_1_030514 | File Type: | jpg | |
| Diagnosis: | NEVUS SEBACEUS / HAMARTOMA | Category: | neoplasm, benign / congenital malformation | ||
| Body Site: | forehead | Age: | 19 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | Sections of skin show a lobular basophilic tumor without connection to the epidermis. The tumor consists of deeply basophilic cells arranged in nests with peripheral palisading. Tumor stromal clefting and mucin deposition are not identified. The surrounding stroma is loose and paucicellular. Mitotic figures are readily identified. Apocrine glands are seen. | ||||
| Comments: | These findings are diagnostic of a nevus sebaceous. | ||||
| Related Images: | All related Images Nevus_Sebaceous_2_030514 Nevus_Sebaceous_3_030514 | ||||
 © 2001-2009, DermAtlas | Image Name: | Seborrheic_Keratoses_2_030514 | File Type: | jpg | |
| Diagnosis: | KERATOSIS, SEBORRHEIC | Category: | neoplasm, benign / lumps & bumps (plaques, nodules, tumors) | ||
| Body Site: | back | Age: | 49 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | The biopsy is composed of basaloid cells with a mixture of squamous cells. Keratin-filled invaginations and horn cysts are seen. | ||||
| Comments: | This biopsy was taken from an irregularly pigmented papule on the right trapezius area of a 49-year-old man. These histologic features are typical of a seborrheic keratosis. | ||||
| Related Images: | Seborrheic_Keratoses_1_030514 | ||||
 © 2001-2009, DermAtlas | Image Name: | Seborrheic_Keratoses_1_030514 | File Type: | jpg | |
| Diagnosis: | KERATOSIS, SEBORRHEIC | Category: | neoplasm, benign / lumps & bumps (plaques, nodules, tumors) | ||
| Body Site: | back | Age: | 49 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | The biopsy is composed of basaloid cells with a mixture of squamous cells. Keratin-filled invaginations and horn cysts are seen. | ||||
| Comments: | This biopsy was taken from an irregularly pigmented papule on the right trapezius area of a 49-year-old man. These histologic features are typical of a seborrheic keratosis. | ||||
| Related Images: | Seborrheic_Keratoses_2_030514 | ||||
 © 2001-2009, DermAtlas | Image Name: | Squamous_Cell_Carcinoma_2_030514 | File Type: | jpg | |
| Diagnosis: | CARCINOMA, SQUAMOUS CELL | Category: | neoplasm, malignant / lumps & bumps (plaques, nodules, tumors) | ||
| Body Site: | forearm | Age: | 85 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | Nests of squamous epithelial cells with abundant eosinophilic cytoplasm and large nuclei are seen extending into the dermis. There is central keratinization and horn pearl formation. Cells at the periphery of the tumor nests are still cohesive. Small basaloid cells are also seen. | ||||
| Comments: | These findings are typical of an acantholytic squamous cell carcinoma with focal basaloid features.This biopsy was taken from an 11 mm nodule on the right forearm of an 85-year-old man. | ||||
| Related Images: | Squamous_Cell_Carcinoma_1_030514 | ||||
 © 2001-2009, DermAtlas | Image Name: | Squamous_Cell_Carcinoma_1_030514 | File Type: | jpg | |
| Diagnosis: | CARCINOMA, SQUAMOUS CELL | Category: | neoplasm, malignant / lumps & bumps (plaques, nodules, tumors) | ||
| Body Site: | forearm | Age: | 85 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | Nests of squamous epithelial cells with abundant eosinophilic cytoplasm and large nuclei are seen extending into the dermis. There is central keratinization and horn pearl formation. Cells at the periphery of the tumor nests are still cohesive. Small basaloid cells are also seen. | ||||
| Comments: | These findings are typical of an acantholytic squamous cell carcinoma with focal basaloid features.This biopsy was taken from an 11 mm nodule on the right forearm of an 85-year-old man. | ||||
| Related Images: | Squamous_Cell_Carcinoma_2_030514 | ||||
 © 2001-2009, DermAtlas | Image Name: | Compound_Nevus_2_030513 | File Type: | jpg | |
| Diagnosis: | NEVUS, PIGMENTED / NEVUS, PIGMENTED, ATYPICAL / NEVUS, PIGMENTED, COMPOUND | Category: | neoplasm, benign / hyperpigmentation | ||
| Body Site: | foot | Age: | 65 years | ||
| Contributor: | Donna Bilu, MS | ||||
| Description: | There is intraepidermal lentiginous hyperplasia of melanocytes, random cytological atypia, a stromal response, and architectural atypia. Lentiginous hyperplasia means that melanocytes are proliferating in nests along the basal layer, as well as singly. An intradermal component of nevus cells are seen. Cells in the upper dermis are cuboidal and contain more melanin pigment in the cytoplasm than smaller, deeper cells. Focal scarring of the superficial dermis is also common. | ||||
| Comments: | This biopsy of a nevus on the right foot of a 65-year-old woman revealed a compound nevus with architectural disorder and focally severe cytologic atypia. These features may be seen in nevi from individuals with the familial atypical mole-melanoma syndrome. | ||||
| Related Images: | Compound_Nevus_1_030513 | ||||
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