The most important conditions of the stomach are anomalies (congenital stenosis of pylorus, situs inversus), acute and chronic passive congestion (portal stasis), hæmorrhages, hæmorrhagic erosions (portal stasis), gastritis (acute, chronic, catarrhal, purulent, fibrinous, diphtheritic, phlegmonous, atrophic, hypertrophic), tuberculosis (rare), syphilis (rare), anthrax, action of corrosive poisons (acids, concentrated lye, carbolic acid, mercuric chloride, silver nitrate, oxalic acid, potassium cyanide), round or peptic ulcer, perforation, neoplasms (carcinoma the most common [adenocarcinoma, medullary, scirrhous, colloid]; primary sarcoma rare [lymphosarcoma], secondary are less rare; metastases of malignant syncytioma may occur in the stomach wall; benign tumors are rarely important. The most common are adenomatous polypi, fibroma, myoma and fibromyoma), stenosis, dilatation, contraction, wounds, concretions, foreign bodies and parasites (temporary as gordius, round-worms occasionally enter, intestinal form of trichina). 6. =Pancreas.= Weight 60-100 grms.; measures 17-20 cm. long, 3-4.5 cm. broad, and 2.5-3 cm. thick. _Color_ reddish-grayish-yellow; _consistence_ firm; _lobules_ distinct. Postmortem change occurs quickly. The most common pathologic conditions are: atrophy, fatty infiltration, hyperæmia, hæmorrhage, inflammation (degenerative, parenchymatous, hæmorrhagic, necrotic, gangrenous, purulent, chronic fibroid or interstitial [inter- and intra-acinar], cirrhosis of pancreas), tuberculosis (very rare), syphilis (gumma not common, interstitial pancreatitis most common form), fat-necrosis, cysts, congenital cystic pancreas, concretions in duct, hæmosiderosis, neoplasms (primary carcinoma the most important [scirrhous, medullary, adenocarcinoma]; primary sarcoma rare; secondary melanotic sarcoma and lymphosarcoma occur, secondary carcinoma less frequently; benign tumors rare, cystadenoma being the most common), and parasites (echinococcus, round-worm in duct). In fat-necrosis or acute pancreatitis the pancreatic ducts should be examined for obstruction due to calculi or stenosis. Areas of fat-necrosis appear as opaque, white, yellow or brown, firm nodules. Accessory pancreatic tissue not rare in wall of intestine. May occur more rarely in stomach-wall, omentum or abdominal wall.