Search Results for: spindle-cell hemangioma

Nail apparatus melanoma initially diagnosed as nail matrix blue nevus: a case report with dermatoscopy and dermatopathology

Nail apparatus melanoma initially diagnosed as nail matrix blue nevus: a case report with dermatoscopy and dermatopathology

…ted as 71.7% [3] with the median Breslow thickness of nail apparatus melanoma being reported as 0.8 mm with up to 18% having spindle shaped cells [4]. All reported nail apparatus melanomas have apparently arisen de novo, there being no reports of…

Differential Diagnosis in Dermatopathology

Morphea, late stage vs. Collagenous nevus

…radiation keratosis, are euphemisms for various types of superficial squamous cell carcinoma. Very episodically, neoplastic cells of those types of squamous cell carcinoma proliferate wildly, and the primary neoplasm then consists of aggregations…

Dermoscopy of histoid leprosy: a case report

Dermoscopy of histoid leprosy: a case report

…rrow). [Copyright: ©2017 Ankad et al.] Figure 3. Histopathology showing epidermal atrophy, Grenz zone. Dermis is replaced by spindle shaped histiocytes in an interlacing pattern (H & E, 10x). [Copyright: ©2017 Ankad et al.] Discussion HL is…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Fibromatoses?

…gray area between reactive proliferations and neoplasms and range from those composed largely of dense collagen with sparse spindle cells to densely cellular tumor-appearing masses. Classification: Palmar, plantar and penile fibromatosis Desmoid…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Pigmented Lesions

…es several of them, e.g., “Spitz’s” cells, “balloon” cells, and “deep penetrating” cells, in addition to cells conventional in a congenital nevus. Miescher’s (526, 570) Dome-shaped with nests, cords…

Differential Diagnosis in Dermatopathology

Dermatofibroma vs. Dermatofibrosarcoma protuberans

…radiation keratosis, are euphemisms for various types of superficial squamous cell carcinoma. Very episodically, neoplastic cells of those types of squamous cell carcinoma proliferate wildly, and the primary neoplasm then consists of aggregations…

Differential Diagnosis in Dermatopathology

Discussions

…higher magnifications, angiolymphoid hyperplasia with eosinophilia is seen to consist of large, often polygonal endothelial cells, many of which have prominent vacuoles in their cytoplasm. No such vacuoles are present in the endothelial cells of…

Differential Diagnosis in Dermatopathology

Discussions

…ment of nearly the entire dermis by the innumerable dilated blood vessels lined by plump endothelial cells, some endothelial cells in mitosis, a mixed infiltrate of inflammatory cells, stroma that tends to be edematous and contain some mucin and…

Dermoscopy of a single plaque on finger

Dermoscopy of a single plaque on finger

…osis The most common differential diagnosis involves melanocytic nevi, Spitz-Reed nevi, malignant melanomas, pigmented basal cell carcinomas, seborrheic keratoses, dermatofibromas, and other vascular lesions such as hemangiomas or pyogenic…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…al and involutes on its own in time. 11.16.2A: Nodular dermatosis + 11.16.2B: Proliferation of small vessels, edema, a mixed-cell infiltrate, and a thinned epidermis = Pyogenic granuloma, fully developed At the base of the section is a large…