Previous Pathology Case Challenges

A 9-month-old infant develops respiratory distress and is found to have a left posterior mediastinal mass and pleural effusion.

A 63-year-old woman undergoes orthotopic liver transplantation. She has a history of liver disease first diagnosed 25 years ago.

A 67-year-old man presents with hematuria. An abdominal CT scan reveals a 9 cm mass in the upper pole of the left kidney.

A 72-year-old man presents with an enlarging chest wall mass. Gross examination of the resected specimen shows a well-circumscribed mass of multilobulated, yellow adipose tissue.

A 65-year-old woman presents to the emergency department with watery diarrhea for five days. Her abdomen shows diffuse tenderness on palpation.

An 82-year-old woman presents with vague abdominal pain and increasing jaundice. Her medical history is notable for primary sclerosing cholangitis.

A 27-year-old G1P0 woman is admitted in active labor at 37 weeks of gestation. Her second trimester routine ultrasound showed a 7.0 cm placental lesion.

An 81-year-old man presents with a 9.0 cm intramuscular neck mass. Gross examination reveals a soft, yellow to gray-white, well-delineated, non-encapsulated, focally hemorrhagic tumor encased in red-brown skeletal muscle.

A 62-year-old woman presents with abdominal pain and nausea. A CT scan shows a well-circumscribed, multilocular mass with a prominent central scar in the tail of the pancreas.