Melanoderma is a genus of two species of white rot poroid fungi in the family Polyporaceae. The genus was circumscribed in 2011 to accommodate the type species Melanoderma microcarpum, found in China. Melanoderma disciforme, found in Yunnan, was added to the genus in 2015. The generic name Melanoderma refers to the dark-coloured crust of the cap. Phylogenetic analyses shows that Melanoderma is closely related to the genus Vanderbylia. == References ==
Contrast-enhanced computed tomography and endoscopic retrograde cholangiopancreatography (ERCP) may also assist in diagnosis, with the latter an essential component of treatment. Types
External
An external pancreatic fistula is an abnormal communication between the pancreas (actually pancreatic duct) and the exterior of the body via the abdominal wall. Loss of bicarbonate-rich pancreatic fluid via a pancreatic fistula can result in a hyperchloraemic or normal anion gap metabolic acidosis. Loss of a small volume of fluid will not cause a problem but an acidosis is common if the volume of pancreatic fluid lost from the body is large. Internal
First described by Smith (1953), and elaborated upon by Cameron et al. (1976), internal pancreatic fistulas can result in pancreatic ascites, mediastinital pseudocysts, enzymatic mediastinitis, or pancreatic pleural effusions, depending on the flow of pancreatic secretions from a disrupted pancreatic duct or leakage from a pseudocyst. Treatment
The production of pancreatic enzymes is suppressed by restricting the patients oral intake of food patient in conjunction with the use of long-acting somatostatin analogues. The patients nutrition is maintained by total parenteral nutrition. This treatment is continued for 2–3 weeks, and the patient is observed for improvement. If no improvement is seen, the patient may receive endoscopic or surgical treatment. If surgical treatment is followed, an ERCP is needed to identify the site of the leak. Fistulectomy is done in which the involved part of the pancreas is also removed. References

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