Infectious Disease

22-year-old man who presented with a painless posterior neck mass.

58 year old woman with leg swelling.

A young woman felt a skin nodule on her thigh.

Procedure: excisional biopsy.

Micro: see photos. 4X to 40X. H&E stain.

What is the name of this organism?

39-year-old male with chronic hepatitis C.

Procedure: Ultrasound guided random liver biopsy

Microscopic Photos: severe periportal inflammation and piecemeal necrosis, bridging fibrosis with arch

31-year-old with sleep apnea.

Patient with shortness of breath

43-year-old male with AIDS and pneumonitis.

Cytology: Cell block show numerous groups of vacuolated alveolar casts. H&E stain.

30-year-old male with a 6.6 cm.