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A 35-year-old Nigerian man presented to the emergency department with a distended, tender abdomen; fever; and weight loss. His abdomen had grown increasingly large during the past several months as his appetite diminished. The patient reported no allergies, took no medication, and denied tobacco, alcohol, and illicit drug use. His only significant medical history was jaundice during adolescence.

A 68-year-old woman was referred from an acute care clinic for evaluation of a persistent cellulitis. Ten days before, erythematous, pruritic plaques developed on her ankles; these slowly enlarged, and pustules formed. The patient denied fever or chills. Her past medical history was unremarkable, and conjugated estrogen, medroxyprogesterone acetate tablets, and multivitamins were the only medications and nutritional supplements she was taking.

This red papule developed 6 months ago at the base of a 53-year-old woman's thumb. The lesion was asymptomatic, but it bled easily when traumatized. It was treated definitively with surgical excision, and the biopsy report was consistent with the clinical diagnosis of pyogenic granuloma. This most commonly appears on the face or fingers and may result from minor trauma.

A painful skin eruption surrounding her colostomy stoma had appeared several months ago and was slowly increasing in size, complained a 64-year-old woman with Crohn's disease. The lesion consisted of several coalescent ulcers with a yellow, fibrinoid base and a violaceous, undermined border.

The left ear of a 1-month-old infant girl shows a congenital papillomatous lesion at the preauricular area. She had no other apparent abnormalities.

This contorted hand of a 49-year-old man demonstrates Dupuytren's contracture, a disorder first described by Baron Guillaume Dupuytren in 1831. Although the condition may occur as a completely independent abnormality, it is commonly associated with chronic liver disease, diabetes mellitus, epilepsy, palmar fasciitis, carpal tunnel syndrome, rheumatoid arthritis, pulmonary tuberculosis, and alcoholism. This patient had a history of alcohol abuse.

A 76-year-old woman had a 40-year history of rheumatoid arthritis (RA). She had repeatedly refused treatment with disease-modifying drugs, including methotrexate. Nodules began to develop 15 years after the initial diagnosis; they recurred after surgical removal.

The use of preserved artificial tears several times a day provided little relief to this 54-year-old woman with red and painful eyes. The patient had a history of rheumatoid arthritis and dry eye syndrome; the latter is very common in patients with rheumatoid arthritis.

A 65-year-old woman, who was confined to a wheelchair because of severe rheumatoid arthritis, was concerned about nodules that had erupted on her fingers and hands during the previous 3 weeks. Her medical history included colon cancer, chronic renal insufficiency, anemia, and hypertension. The nonpruritic nodules were painful when they began to form under the skin; however, once they erupted, the pain disappeared.

This 64-year-old woman has had rheumatoid arthritis for 15 years; her hands show classic rheumatic changes. She also had a leg ulcer that had failed to heal in 8 years despite three skin grafts.

Various types of cutaneous lesions may occur in association with RA, including rheumatoid nodules, rheumatoid neutrophilic dermatitis, vasculitis, palpable purpura, and pyoderma gangrenosum. Many of these manifestations-including rheumatoid nodules-are specific for RA. The presence of these nodules is associated with seropositive disease and with a more severe, erosive clinical presentation. The nodules appear in 20% to 30% of patients with RA. Sites of predilection are those subject to shear stress, including the subcutaneous tissues over the extensor aspects of the elbow region, over the sacrum in bedridden persons, and at the pericardial and pleural surfaces.

This 60-year-old man has had rheumatoid arthritis (RA) for 40 years. Typical of progressive, long-standing disease is the deformity seen here in his hands and feet.

Cutaneous and subcutaneous lesions of the extremities may be clues to the presence of rheumatic diseases such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and the vasculitides. The history and physical examination can generally help confirm the cause. Skin biopsy is sometimes necessary for a definitive diagnosis; useful results depend on a technique that gives the depth necessary to see the pathology and proper interpretation of biopsy specimens by an experienced dermatopathologist.

This 20-month-old girl was born to a 28-year-old mother at 38 weeks' gestation. The pregnancy was uncomplicated, and vaginal delivery was normal. The infant sat with support at 10 months of age, sat without support at 12 months, crawled at 13 months, and walked at 18 months. She had not yet begun to talk at 20 months. The child was noted to have frequent laughing episodes and often made flapping movements with her hands.

A 30-year-old woman was brought to the hospital with syncope, bradycardia, and hypotension. For the past 6 years, she had vomited after eating meals and after occasional episodes of binge eating.

Severely limited vision plagues this 27-year-old woman with aniridia, the bilateral absence of the iris of the eye.

This x-ray film of a man in his 50s illustrates an extreme case of renal osteodystrophy. On examination, the patient's legs were very tender and one could actually see the femur bend in the examiner's hands as if it had a greenstick fracture.

Highly pruritic, 2- to 4-mm, papular lesions with central ulceration erupted on the back of a 66-year-old woman. She had had 2 similar outbreaks in the past. The patient was taking conjugated estrogens, alprazolam, and alendronate.