Fibrous papule with hyalinized collagen bundles and increased dilated vascular channels.
(a) Bundles of bland myofibroblast‐like cells in the dermis in a case of inclusion body fibromatosis. (b) Numerous typical eosinophilic intracytoplasm...
Histological appearance of dermatofibroma, showing epidermal hyperplasia overlying the dermal sclerotic component.
Prominent cellular pleomorphism in a case of atypical fibroxanthoma.
Clinical appearance of a pyogenic granuloma on a typical site at the tip of the finger.
Well‐differentiated angiosarcoma, with thin‐walled irregular vascular channels lined by atypical endothelial cells. Note the dissection of collagen pa...
A typical case of glomangiomyoma displaying vascular channels, smooth muscle and thin layers of glomus cells.
Typical Verocay body in a case of schwannoma.
Typical whorling appearance and some degree of sclerosis in a case of perineurioma.
Clinical appearance of multiple leiomyomas.
Storiform collagenoma. Poorly cellular stroma composed of hyalinized collagen in a storiform pattern.
Pathological appearance of dermatofibrosarcoma protuberans, showing the storiform or ‘cartwheel’ distribution of the fairly uniform, spindle‐shaped tu...
Cellular fibrous histiocytoma. Note the increased cellularity, fascicular appearance and focal extension into the subcutis.
Typical clinical appearance of an atypical fibroxanthoma with a polypoid architecture.
A dermal collection of thick‐ and thin‐walled blood vessels in a typical case of cirsoid aneurysm.
Typical haemorrhagic appearance of an angiosarcoma.
Clinical appearance of a glomus tumour.
Multiple soft papules, typical of neurofibroma in a patient with neurofibromatosis type 1.
Cellular neurothekeoma. Nests of epithelioid cells in the background of a hyalinized stroma. In cases with cytological atypia and mitotic activity, co...
Large cells with prominent granular cell change in a case of dermal non‐neural granular cell tumour.
Clinical appearance of an acquired digital fibrokeratoma.
Recurrent abdominal dermatofibrosarcoma protuberans.
Aneurysmal fibrous histiocytoma. Prominent haemorrhage and cavernous‐like spaces obscure the typical background of a fibrous histiocytoma.
Tufted angioma. Multiple circumscribed vascular lobiules in a ‘cannonball’ distribution in the dermis.
Vascular channels lined by epithelioid endothelial cells with abundant pink cytoplasm in a case of epithelioid haemangioma.
(a,b) Histopathology of atypical vascular proliferation after radiotherapy.
Histological appearance of an amputation neuroma. Small nerves proliferate in the dermis in a background of fibrosis.
Irregular poorly formed nerves in a plexiform neurofibroma.
Prominent pseudoepitheliomatous hyperplasia mimicking a squamous cell carcinoma in a case of granular cell tumour.
Typical tissue culture‐like appearance of nodular fasciitis with prominent myxoid background.
Typical pseudovascular spaces focally lined by multinucleated cells in a case of giant cell fibroblastoma.
Clinical appearance of a fibrous histiocytoma or dermatofibroma.
Typical lobules of capillaries in a myxoid background in a case of pyogenic granuloma.
Epithelioid haemangioma, or angiolymphoid hyperplasia with eosinophilia. (Courtesy of and copyright of Dr R. H. Champion, Addenbrooke's Hospital, Cam...
Numerous vascular channels surrounded by layers of pericytes in an onion‐ring distribution in a case of myopericytoma.
Sharply demarcated dermal nodule in a case of solitary circumscribed neuroma.
Clinical appearance of a plexiform neurofibroma.
Pathology of leiomyoma, showing spindle‐shaped cells with eosinophilic cytoplasm arranged in bundles closely resembling the arrector pili muscle.