Search Results for: hemangioma

A slowly enlarging purple nodule on the arm

A slowly enlarging purple nodule on the arm

…resent extravasation of erythrocytes from capillaries. Important clinical differential diagnoses include malignant melanoma, hemangioma and Kaposi’s sarcoma. In summary, in the presence of a gradually enlarging, blue-purple, hard nodule with…

Differential Diagnosis in Dermatopathology

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…ud flesh” that consists histopathologically of exuberant granulation tissue beneath an ulcer and, in time, resembles a hemangioma, clinically and histopathologically. As it resolves, an ulcerated pyogenic granuloma re-epithelializes, develops…

Differential Diagnosis in Dermatopathology

Discussions

…with erythromycin or another antibiotic administered systemically. Pyogenic granuloma may be misinterpreted clinically as an hemangioma, a lesion of Kaposi’s sarcoma, or a melanoma. Bacillary angiomatosis does not really resemble any other…

Differential Diagnosis in Dermatopathology

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…issue and in which there are countless extravasated erythrocytes and innumerable siderophages, it has been called sclerosing hemangioma; at a more advanced stage in which the lipophages and siderophages predominate, it has been designated…

Melanoma and satellite blue papule

Melanoma and satellite blue papule

…asis. Blue hue can also be seen in nonmelanocytic lesions like seborrheic keratosis, including lichen planus-like keratosis, hemangioma, pigmented basal cell carcinoma, hemosiderotic dermatofibroma, Kaposi sarcoma and angiosarcoma. Finally,…

Differential Diagnosis in Dermatopathology

Discussions

…its development, when blood vessels are prominent and hemorrhage is extensive, it has been given the appellation sclerosing hemangioma. Later, consequent to the mighty extravasation of erythrocytes, histiocytes ingest hemosiderin and lipid, and,…

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

…osis for melanoma may be found in other benign or malignant proliferations, such as melanocytic nevus, seborrheic keratosis, hemangioma, adnexal proliferations, basal and squamous-cell carcinoma, and lymphoma, to mention but a few. However,…