A 45-year-old man sought medical advice after suffering for 6 months with recurrent pain and a purulent discharge at the sacrococcygeal region. Two weeks before this consultation, an abscess on the patient's right buttock had been drained by another physician. The patient had insulin-dependent diabetes mellitus for 5 years; his medical history was otherwise unremarkable.
The painless lesion on this 66-year-old woman's upper eyelid had been enlarging for the past couple of months and was now obscuring her vision.
This disorder occurs in fetal development, when the midgut supplied by the superior mesenteric artery grows too rapidly to be accommodated in the abdominal cavity. Prolapse into the umbilical cord occurs around the sixth week of gestation. Between the tenth and eleventh weeks, the midgut retracts from its location at the exocelomic umbilical stalk back into the abdominal cavity. During this return, the midgut undergoes a 270-degree counterclockwise rotation about the axis of the superior mesenteric artery, followed by fixation to the posterior abdominal wall. Malrotation results from failure of the midgut to properly rotate and affix itself to this wall. This disorder occurs approximately once in 500 live births.
Two enlarging, dry, tender lesions had developed on the right breast of a 62-year-old woman 2 years before she sought medical consultation. The patient had no other symptoms; she was taking metoprolol succinate for cardiac arrhythmias.
A 65-year-old man presented with bluish toes and petechiae on his toes and feet 3 days after having undergone renal angiography. Bilateral pitting pedal edema was noted, and laboratory tests revealed proteinuria, eosinophilia, and an erythrocyte sedimentation rate (ESR) of 65 mm/h.
Following a cholecystectomy, an indwelling urethral catheter was placed in a 51-year-old woman with urinary retention. Five days later, the patient complained of a burning sensation at the site. A rounded, swollen, hemorrhagic area surrounding the catheter was noted, and a urinary tract infection was diagnosed.
A 56-year-old man was admitted to the hospital with right lower lobe pneumonia, which was exacerbated by smoking-induced chronic obstructive pulmonary disease (COPD).
An 80-year-old man with a history of congestive heart failure, coronary artery disease, cardiomyopathy, and thoracic and abdominal aneurysms was taken to the emergency department because of mental status changes, back pain, and ecchymotic areas over his body. The ecchymoses started on his back 5 days before admission and spread to his abdomen.
Tan-pink acneiform lesions on the face of a 15-year-old girl had not responded to topical acne therapy. A 1 × 0.5-cm, elevated subcutaneous nodule was noted on the right lateral knee. The lesions on her face and knee had been present for 11 years. The family history was noncontributory.
A 32-year-old man who had HIV disease complained of headache, fever, and weakness on his right side. His history included intravenous drug use, Pneumocystis carinii pneumonia, and mucocutaneous candidiasis.
Intermittent right upper quadrant abdominal pain prompted a 42-year-old woman to seek medical consultation. Ultrasonographic examination of the abdomen revealed cholelithiasis; percutaneous gallstone dissolution was performed.
During the assessment of an 83-year-old man who had an infected arteriovenous graft, chest films showed a masslike density in the lower right hemithorax.
A 28-year-old woman reported that she was in good health before experiencing generalized weakness; exhaustion; and pain in her legs, shoulders, and back for the past 3 months. She also complained of shortness of breath with minimal activity, irregular menstrual periods, and occasional episodes of nose and gum bleeding.
An obese 56-year-old woman was hospitalized after 2 days of chest pain, shortness of breath, and palpitations. Physical examination revealed no abnormalities, and serial cardiac enzyme studies and an ECG ruled out myocardial infarction. However, transesophageal echocardiography showed a lesion in the mediastinum.
The parents of a 2-year-old boy with a 3-day history of fever took him to the emergency department. The child's temperature fluctuated between 38°C (100.4°F) and 39°C (102.2°F). As part of the workup, chest films were taken.
Following an uneventful pregnancy, a 25-year-old woman was delivered of an infant girl by repeat cesarean birth with occiput anterior presentation at 39 weeks gestation. The deformity was readily evident at birth.
A 69-year-old man with a long history of lymphedema secondary to repeated cellulitis sought medical care for mildly pruritic, nontender, purple nodules that had erupted on the bottom and side of one foot 6 months earlier. Scale surrounded the nodules.
This 63-year-old woman's primary care physician had referred her to an ophthamologist because of her persistently red eye. She had been treated unsuccessfully for almost 3 weeks with several different antibiotic eyedrops. Her vision had begun to worsen, and she started to hear “swishing” noises. Pertinent medical history included a carotid endarterectomy on the same side as the red eye about 1 month before onset of the symptoms.
A 55-year-old man complaining of backache had localized tenderness at the paraspinal region over the posterior portion of the right 7th rib. A CT scan of the thorax revealed erosion of this portion of the rib, along with a space-occupying lesion that displaced the adjacent pleura and lung. Needle aspiration and biopsy study of this mass showed it to be a plasmacytoma.
A 12-year-old boy was brought to his physician because of a tensely cystic mass in the right side of the scrotum. The spermatic cord could be felt above and below the lump. It had no cough impulse.
