Dermatology Practical & Conceptual

Glomangiosarcoma in the shoulder of a 51-year-old man

Abstract Glomangiosarcoma is a very rare type of soft tissue neoplasm. Here we report such a case in the shoulder of a 51-year-old man. Case report A 51-year-old white Hispanic man presented with a pruritic lesion on the back of his left shoulder. H…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Subacute Cutaneous Lupus Erythematosus?

“Hydropic degeneration of the epidermal basal cell layer and mononuclear cell infiltration around dermal blood vessels and appendages are constant features of both forms of cutaneous LE. The lesions of SCLE [subacute cutaneous lupus erythema…

Dermatology Practical & Conceptual

Dermoscopic findings in a patient with multiple piloleiomyomas

Abstract Piloleiomyoma can manifest itself as a pigmented lesion and part of the differential diagnosis with other pigmented skin lesions. However, we are not aware of previous descriptions in the literature of the dermoscopic features of piloleiomy…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Nuclear Atypia, Cytoplasmic Atypia, and Architectural Atypia?

“The cytologically atypical melanocytes have the same features as cytologically atypical cells in any neoplastic system. Such cells are larger than normal melanocytes or the intraepidermal melanocytes of an ordinary melanocytic nevus.”…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Study By Disease

“Blue nevus” (Jadassohn-Tièche) (Quiz #360) “Blue nevus” (Jadassohn-Tièche) (Quiz #525) “Blue nevus” (Masson’s blue neuronevus) (Quiz #359) “Collagenous” nevus, papillary dermal type* (Quiz #11…

Differential Diagnosis in Dermatopathology

Discussions

Both nodular fasciitis and malignant fibrous histiocytoma are comprised of oval and spindle cells, some of which are arranged in fascicles that appear to be intertwined and may involve the lower part of the dermis, subcutaneous fat, fascia, and skel…