Search Results for: leukemia

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Mycosis fungoides, papular/plaque stage Adult T-cell leukemia/lymphoma, papular stage 1. No crusts as a rule 1. Crusts common 2. No collections of lymphocytes in the cornified layer usually 2. Collections of lymphocytes in the cornified layer often…

Histologic Diagnosis of Inflammatory Skin Diseases

Cytomegalic inclusion disease

…but only by laboratory methods. Extremely young children with leukemia may exhibit purpuric macules, papules, and nodules. Herpes simplex infection at times also may affect the perianal region and may present itself with ulcers in immunosuppressed pa…

Differential Diagnosis in Dermatopathology

Pyogenic granuloma, fully developed vs. Kaposi’s sarcoma, nodular

An inflammatory disease caused by the yeast Candida albicans and manifested clinically as erythematous papules and pustules that may become confluent to form plaques in the case of the former and erosions in the case of the latter. The nail unit may…

Differential Diagnosis in Dermatopathology

Discussions

…ar disorders, such as Hodgkin’s disease and lymphocytic leukemia. Although not in itself lethal, patients with Kaposi’s sarcoma may die of bleeding from gastrointestinal or pulmonary lesions, from infections superimposed upon massively ed…

Histologic Diagnosis of Inflammatory Skin Diseases

Erythema figuratum

…ary dermis and, sometimes, by spongiosis. Chronic lymphocytic leukemia may resemble erythema figuratum closely, but the lymphocytes may exhibit abnormal nuclei and some of them may be present in the interstitium. Lupus tumidus, i.e., the tumid varian…

Histologic Diagnosis of Inflammatory Skin Diseases

Acquired epidermolysis bullosa

…rheumatoid arthritis, pulmonary fibrosis, chronic lymphocytic leukemia, thymoma, and multiple myeloma). Comment All of the so-called types of epidermolysis bullosa (simplex, junctional, dystrophic, and acquired) represent very different bullous disea…

Differential Diagnosis in Dermatopathology

Photoallergic dermatitis vs. Phototoxic dermatitis

An inflammatory disease caused by the yeast Candida albicans and manifested clinically as erythematous papules and pustules that may become confluent to form plaques in the case of the former and erosions in the case of the latter. The nail unit may…

Histologic Diagnosis of Inflammatory Skin Diseases

Erythema nodosum

…oral contraceptives; malignant neoplasms, e.g., lymphoma and leukemia; and whatever is responsible for sarcoidosis and ulcerative colitis. Comment It is easy to diagnose erythema nodosum histopathologically when lesions of it are developed fully and…