A 30-year-old male undergoes ear piercing in a jewellery shop. Following that, he develops pain and swelling of the pinna which gets subsided in a few days. Six months later, he presents to the clinic with firm nodular swellings on pinna at the site of piercing as shown in the image.

Which of the following processes is most likely occurring in this patient?

A 56-year-old male presents to the Emergency Department with sudden onset central chest pain associated with sweating. Following investigations, he is diagnosed with acute myocardial infarction. He is treated and discharged. One month later, he comes to the clinic for follow-up. He is recovering well and has no other medical problems. Which of the following morphological changes is most likely to be seen in his myocardium at this point of time?

A 25-year-old woman is taking corticosteroid therapy for an autoimmune disease. She develops a small abscess on her arm which is incised and drained. But her wound heals poorly over the next month. Which of the following aspects of wound healing is affected in this patient?