ovary pathology

ovary

Cysts
- Corpus luteum cyst
  - prominent connective tissue
- follicular cyst
  - granulosa cell inner lining
  - theca cell outer lining
- epidermal inclusion cyst
  - statified squamous lining with granular layer
  - Filled laminated keratin
  - vs trichilemmal cyst: no granular layer, compact wet keratin)
- peritoneal inclusion cyst
- Walthard nest
- endosalpingiosis
- PCOD
  - multiple cortical cysts
- PCOS
- hyperreactio luteinalis
endometriosis
Walthard nest
Inflammation
- infection
  - tuboovarian abscess
  - PID
  - xanthogranuloma
  - malakoplakia
  - other bacterial, fungal and viral
- granulomatous oophoritis
  - foreign body granuloma
  - necrobiotic granuloma
  - sarcoidosis
  - Crohns disease
  - cortical granuloma
Hyperplasia
- stromal hyperplasia and hyperthecosis
- granulosa cell prolif of pregnancy
- hilar leydig cell hyperplasia
Metaplasia
- decidua
- smooth muscle metaplasia
Heterotopia
- endometriosis
- nests of endometrial stromal cells
- leydig cells
  - Reinke crystals
- neuroendocrine cells
- spleen
- prostate
- adrenal rest
Others
- luteoma of pregnancy
- cortical granuloma
- hyaline scar
- papillary stromal projections
- serous surface papilloma
- mesothelial cell hyperplasia
  - response to PID
  - can be florid tubulopapillary, pseudoinfiltrative, nuclear atypia
  - ddx mesothelioma

T1: limited to ovary(s)
- T1a: unilateral
- T1b: bilateral
- T1c: tumor ruptured, on surface, or in peritoneal fluid
T2: pelvic involvement
- T2a: uterus or tube involvement
- T2b: other pelvic tissue involvement
- T2c: malignant peritoneal fluid
T3: peritoneal involvement or N1
- T3a: microscopic only
- T3b: <= 2cm
- T3c: > 2cm or N1