Apocrine acne – an outdated term based on the disproven concept that apocrine glands are primarily involved, though many do have apocrine gland infection
Apocrinitis – another outdated term based on the same thesis
Fox-den disease – a term not used in medical literature, based on the deep fox den–like sinuses
Hidradenitis supportiva – a misspelling
Pyodermia fistulans significa – now considered archaic
Verneuils disease – recognizing the surgeon whose name is most often associated with the disorder as a result of his 1854–1865 studies

Histology
Terminology
Although hidradenitis suppurativa is often referred to as acne inversa, it is not a form of acne, and lacks the core defining features of acne such as the presence of closed comedones and increased sebum production. References
External links
Medline: What is Hidradenitis Suppurativa? Hidradenitis Suppurativa (2004) Prof J. Revuz Archived 28 February 2005 at the Wayback Machine
There is often associated vomiting.Chronic pyelonephritis causes persistent flank or abdominal pain, signs of infection (fever, unintentional weight loss, malaise, decreased appetite), lower urinary tract symptoms and blood in the urine. Chronic pyelonephritis can in addition cause fever of unknown origin. Furthermore, inflammation-related proteins can accumulate in organs and cause the condition AA amyloidosis.Physical examination may reveal fever and tenderness at the costovertebral angle on the affected side. Causes
Most cases of community-acquired pyelonephritis are due to bowel organisms that enter the urinary tract. Common organisms are E. coli (70–80%) and Enterococcus faecalis. Hospital-acquired infections may be due to coliform bacteria and enterococci, as well as other organisms uncommon in the community (e.g., Pseudomonas aeruginosa and various species of Klebsiella). Most cases of pyelonephritis start off as lower urinary tract infections, mainly cystitis and prostatitis. E. coli can invade the superficial umbrella cells of the bladder to form intracellular bacterial communities (IBCs), which can mature into biofilms. These biofilm-producing E. coli are resistant to antibiotic therapy and immune system responses, and present a possible explanation for recurrent urinary tract infections, including pyelonephritis.