Neoplastic Pancreas Flashcards
Etiologies of Von Hippel-Lindau Syndrome
Autosomal dominant
Etiologies of Polycystic Kidney Disease
Autosomal dominant
Characteristics of pt’s with Von Hippel-Lindau Syndrome
- 75% have pancreatic cysts
- Neuroendocrine tumors - related to, or involving, the interaction between the nervous system and the hormones of the endocrine glands
- Renal cell carcinoma
- Eye tumors
- Brain/spinal cord lesions
- Pheochromocytomas
Clinical signs of Von Hippel-Lindau Syndrome
- Asymptomatic
- Pain/pressure/jaundice if obstruction of the bile ducts occurs
- HTN w/ pheochromocytomas
Sonographic appearance of Von Hippel-Lindau Syndrome
- Single or multiple of various sizes
- Size and number of cysts can increase with age
- 72% found in patient at autopsy
- 25% found in patients with ultrasound
What percentage of pancreatic cysts does neoplastic cysts make up?
10-15%
What are the 2 types of neoplastic cysts?
- Microcystic adenoma (serous)
- Macrocystic adenocarcinoma (mucinous)
Where is Microcystic Adenoma Found?
- Rare
- Benign
- Elderly women
- No potential for malignency
- Seen in patients with Von Hippel-Lindau Syndrome
Where is Macrocystic Adenocarcinoma Found?
- Rare
- Significant malignancy potential
- Slow growing
- 35-60% found in body and tail, only 5% found in head
Clinical Signs of Microcystic Adenoma (Cystadenoma)
- Asymptomatic
- More frequent in females
- People over 60yo
Labs associated with microcystic adenoma (cystadenoma)
- None specific
- Increase in amylase
Sonographic appearance of microcystic adenoma (cystadenoma)
- Large, well circumscribed lesion with multiple tiny cysts
- Cyst size varies from 1-20mm
Clinical signs of macrocystic adenocarcinoma (cystadenoma)
- Non-specific abd. epigastic pain
- Palpable mass
- Concurrent disease, such as diabetes, calculous disease of biliary tree, arterial hypertension
Sonographic appearance of macrocystic adenocarcinoma (cystadenoma)
- Well circumscribed
- Thin or thick walled
- Uni- or multi-loculared
- > 20mm in size
Etiology of Adenocarcinoma
- Most common primary tumor of the pancreas
- 60-70% occur in the head of pancreas
- Involves the EXOCRINE!!! portion of gland
- > 90% of all malignant tumors of the pancreas
- 4th leading cause of cancer death, behind lung, breast, & colon
- Rare before 40yo. 2/3 present after 60.
- More common in males!!!
- Poor prognosis. Mean average survival time is 2-3 months