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A 63-year-old woman presented to the outpatient primary clinic with tender erythematous nodules and ulcers draining oily brown material on bilateral lower extremities (figure 1A). Her medical history was notable for an episode of pancreatitis and pancreatic pseudocyst, 4 years ago. The lesions appeared a week ago and progressed from areas of erythematous macules (figure 1B) to tender nodules and few evolved into ulcers draining an oily brown material (figure 1A). At the time of presentation, she also had nausea and mild abdominal pain. Physical examination was remarkable for skin changes and mild abdominal tenderness. On laboratory investigations, serum amylase and lipase levels were 3804 and 5775 U/L, respectively. CT scan showed enlarged pancreatic duct measuring 7 mm with unchanged cystic mass up to 1.6 cm in the uncinate process with mild pancreatic inflammation. She was admitted to the hospital for management of acute pancreatitis with intravenous fluids and pain medications. Biopsy of the skin lesions revealed lobular panniculitis without vasculitis, necrosis of adipocytes with formation of ‘ghost adipocytes’ (enucleated cells after coagulation necrosis) and calcium deposition, pathognomonic for pancreatic panniculitis (figure 2). She was discharged from hospital, her lesions completely resolved on follow-up visit 4 weeks later and is currently scheduled for outpatient endoscopic ultrasound to rule out underlying pancreatic malignancy.
Pancreatic panniculitis is a rare cutaneous manifestation which is observed in 2%–3% of individuals with pancreatic disease.1 The lesions are usually due to subcutaneous fat necrosis mainly of the extremities and present as inflammatory nodules and plaques which may ulcerate and exudate.1 It is mostly associated with acute or chronic pancreatitis but can harbinger pancreatic carcinoma (most frequently acinar type) and can precede neoplasia by several months.2 3 Recurrent or persistent pancreatic panniculitis warrants screening for occult pancreatic malignancy.2 Skin lesions improve with managing the underlying condition.4 Symptomatic relief can be achieved by non-steroidal anti-inflammatory drugs.4 Some studies suggest benefit from octreotide, a synthetic somatostatin-like polypeptide, which inhibits pancreatic enzyme production.5
Pancreatic panniculitis is a rare cutaneous manifestation which is observed in 2%–3% of individuals with pancreatic disease; hence, patients presenting with skin lesions and abdominal pain should be promptly evaluated for a possible diagnosis of pancreatitis to avoid delay in management.
It is mostly associated with acute or chronic pancreatitis but can harbinger pancreatic carcinoma (most frequently acinar type) and can precede neoplasia by several months.
Patients with recurrent or persistent pancreatic panniculitis should be screened for occult pancreatic malignancy.
Contributors AK: Drafted and revised the manuscript. MHH: Drafted and revised the manuscript. AY: Drafted and critically revised the manuscript. RT: Drafted, revised the manuscript and gave the final approval for submission.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.