Alexander K. C. Leung, MD

April 01, 2005

During the last few weeks of gestationor shortly after birth, the layersof the processus vaginalis normallyfuse together and obliterate the entranceto the inguinal canal in thevicinity of the internal inguinal ring.An indirect hernia results from a failureof fusion of the processus vaginalis;the bowel subsequently descendsthrough the inguinal canal.

March 01, 2005

An 18-year-old man presented with a 3-day history of fever, sore throat, and neck swelling. He had previously been healthy, and his immunizations were up-to-date. There was no history of travel outside the country or of an animal bite or scratch.

February 02, 2005

A 14-year-old boy presented with a 3-day history ofrunny nose, cough, and fever. His temperature was37.7°C (100ºF); heart rate, 78 beats per minute; and respirationrate, 26 breaths per minute. Several symmetric,circular ecchymotic lesions that measured 4 cm in diameterwere noted on the upper chest. There was no evidenceof external injury to other parts of the body. Thechild reported that the bruises resulted from cupping,performed by a Chinese practitioner in an attempt torelieve the fever.

February 02, 2005

A 7-year-old Chinese boy presented with fever, cough,and sore throat of 2 days’ duration. His temperature was38.3°C (101°F); heart rate, 85 beats per minute; andrespiration rate, 26 breaths per minute. The throat waserythematous but without any exudate. There weresmall cervical lymph nodes bilaterally. The chest wasclear.

February 02, 2005

This 9-year-old girl had a slightlypruritic perioral rash for 6 months.The skin around her mouth wasred, scaly, thickened, and hyperpigmented.She also had eczematouslesions in the antecubital andpopliteal fossae.

January 02, 2005

For 2 years, a 66-year-old woman had a winglike structure on the nasal sideof her right eye. She had normal vision. A diagnosis of pterygium was made.

November 01, 2004

A male infant was born to a 29-year-old woman (gravida 3, para 2), following an uncomplicated pregnancy and normal vaginal delivery. At birth, a brownish 1-cm nodule was noted on the right side of the upper abdomen. The infant was otherwise healthy.

September 16, 2004

A symptomatic brown macules developed on the face of a 32-year-old woman 1 year ago. She had been taking oral contraceptives for the past 5 years. Her medical history was unremarkable, and the results of a physical examination were normal.

July 01, 2004

This 17-year-old presented with a 1-month history of weight loss, increased appetite, mild insomnia, hand tremor, palpitations, sweating, heat intolerance, and quick loss of temper. The number of daily bowel movements had increased from 1 to 2. There was no family history of thyroid disorders.

July 01, 2004

A 17-year-old adolescent experienced an episode of generalized paralysis ofacute onset after physical exertion and consumption of a high-carbohydratemeal. Despite a good appetite, the patient had lost between 2 and 3 lb duringthe past month. He complained of heat intolerance and palpitations and reportedlosing his temper easily.