Search Results for: ulcer

Multiple confluent reddish nodules

Multiple confluent reddish nodules

…ith the same presentation seen in humans. The lesions are polymorphic and may present as papules, nodules, warty plaques and ulcers. Confluent keloid-like lesions in the legs, arms or ears are the most characteristic clinical scenario [1,3]. The…

Hyperkeratotic necrobiosis lipoidica

Hyperkeratotic necrobiosis lipoidica

…lipoidica in a non-diabetic patient that clinically resembled Degos’ papulosis [16]. Alonso et al described a case of ulcerated necrobiosis lipoidica on the glans penis that was initially suspicious for squamous cell carcinoma [17]. The ulcer

Histologic Diagnosis of Inflammatory Skin Diseases

Nodular vasculitis

…otic adipocytes and collections of neutrophils sometimes are discharged to the skin surface, and, in the process, the lesion ulcerates. Eventually, the ulcer heals as a depressed hyperpigmented scar. To make an unequivocal diagnosis histopathologic…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ermatosis, lymphocytes predominant + 11.14.3B: Strikingly abnormal lymphocytes in the dermis = Mycosis fungoides, nodule The ulcer is a consequence of the effects of the lymphomatous process, rather than of external trauma. Abnormal lymphocytes are…

Histologic Diagnosis of Inflammatory Skin Diseases

Atopic dermatitis

…scratching animated and rubbing energetic. The effects of scratching (excoriations) are epidermal necrosis, erosions and/or ulceration, degenerated collagen and fibrin immediately beneath some ulcers, and, later, fibroplasia in the uppermost part…

Histologic Diagnosis of Inflammatory Skin Diseases

Crohn’s disease

…tion of the dermis and the subcutaneous fat Perivascular and sometimes periadnexal infiltrate composed mostly of lymphocytes Ulceration sometimes Late Patchy fibroplasia in lobules in the panniculus in conjunction with granulomatous inflammation…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…sect vascular elements thereby creating lobules 9. No fibrous septa 10. Moderately dense, mixed infiltrate of inflammatory cells dispersed throughout the stroma 10. Sparse mononuclear infiltrate of inflammatory cells in non-ulcerated lesions;…

Histologic Diagnosis of Inflammatory Skin Diseases

Factitious dermatitis and panniculitis

…tefactual panniculitis. Alpha-1-antitrypsin deficiency panniculitis consists of tender erythematous nodules, plaques, and/or ulcers on the trunk and extremities; although features clinical often are claimed to be related to trauma, it seems that the…