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4. Exophytic carcinoma of the stomach: Difference between revisions
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[[File:Exophytic gastric cancer prep front.jpg|thumb|Exophytic gastric cancer prep front]]'''Organ''': Stomach | [[File:Exophytic gastric cancer prep front.jpg|thumb|Exophytic gastric cancer prep front]]'''Organ''': Stomach | ||
'''Description''': On the front of the preparation can we see a large tumor that protrudes into the lumen of the stomach. On the surface of this tumor is there ulcerated mucosa. | '''Description''': On the front of the preparation can we see a large tumor that protrudes into the lumen of the stomach. On the surface of this tumor is there ulcerated mucosa. On the back side of the preparation can we see multiple metastatic lymph nodes. Some are whole and some are in cross-section. | ||
On the back side of the preparation can we see multiple metastatic lymph nodes. Some are whole and some are in cross-section. | |||
'''Diagnosis''': Fungal type gastric adenocarcinoma | '''Diagnosis''': Fungal type gastric adenocarcinoma | ||
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* Long-standing chronic gastritis | * Long-standing chronic gastritis | ||
'''Theory''':[[File:Exophytic gastric cancer prep back.jpg|thumb|Exophytic gastric cancer prep back]]Adenocarcinoma accounts for 90% of all cancers in the stomach. It’s very common in Japan for unknown reasons. | '''Theory''':[[File:Exophytic gastric cancer prep back.jpg|thumb|Exophytic gastric cancer prep back]]Adenocarcinoma accounts for 90% of all cancers in the stomach. It’s very common in Japan for unknown reasons. There are two ways to classify gastric adenocarcinoma: by macroscopy, which uses the Borrmann classification, and by microscopy, which uses the Lauren classification. The Borrmann classification goes like this: | ||
There are two ways to classify gastric adenocarcinoma: by macroscopy, which uses the Borrmann classification, and by microscopy, which uses the Lauren classification. The Borrmann classification goes like this: | |||
# Polypoid type – Protrudes into the lumen like a polyp | # Polypoid type – Protrudes into the lumen like a polyp | ||