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Showing posts with label Ulcerations. Show all posts
Showing posts with label Ulcerations. Show all posts

Sunday, February 19, 2012

Dialysis Patient with Atypical Ulcers

Abstract: 77 y.o.woman on dialysis with skin ulcers for over a year

HPI: The patient is a 77 yo woman with diabetes and ESRD on hemodialysis for a number of years. She had a diagonsis of porphyria cutanea tarda over four years ago, but no lab studies are available and it's unclear if this was a clinical or laboratory diagnosis. For over a year she has had painful skin ulcers which are located on the abdomen, scalp, breast and hands. These do not heal with good wound care. Her medications include Lantus insulin, sevelamer, cinacalcet (used to treat secondary hyperpartahyroidism), midodrine, risedronate, pravastatin, omeprazole, fenofibrate, famotadine.

O/E: This is a chronically ill-appearing woman. She has a periungual ulceration on her right ring finger. There are ulcers with escars on the abdomen, buttock, sccalp and extremities. The ulcers vary from one to 4 cm in diameter.

Clinical photos (presented with patient's permission)




Photo above is L. buttock and to right is abdomen

Labs; Although a diagnosis of PCT was made four years ago, the only reference to porphyrin levels is that they were "low." We do not have parathyroid hormone or Ca++ levels. These should be available from her nephrologists.

Pathology: Bx. 11/20/11 Read by Dan Carter, M.D.
Histologic changes consistent with "acquired perforating dermatosis of dialysis."

Diagnosis: Atypical Skin Ulcers in a Renal Transplant Patient. The etiology of her ulcers is unclear at this time.

Discussion: The patient is anemic with iron deficiency and her nephrologists are reluctant to treat with i.v. iron because of the past diagnosis of PCT. The current lesions do not look like classic PCT. Nor do they look like perforating dermatosis. They are also quite atypical for calciphylaxis.

Questions: What are your thoughts? Serum porphyrin levels could be done prior to and after iron infusion. Perhaps a deeper biopsy. Has she been checked for hyperparathyroidism? Has anyone seen a case like this?

References: I could find no helpful references for this case.

Update from her nephrologist: After this posting, this woman had a GI bleed and developed very painful decubitus ulcers. Last Friday I spoke with her while she was on dialysis. Her quality of life has been poor and no reasonable expectation that things were going to improve for her. She and I agreed that dialysis was no longer allowing her to have the acceptable quality of life she has had on dialysis for over 12 years. She terminated her dialysis treatment and passed away about 48 hours later.

Wednesday, April 16, 2008

Stumped...

Abstract: 60 yo man with unusual cutaneous ulcers and erosions
Presented by Dr. Hamish Dunwoodie, Moncton, New Brunswick
HPI: The patient is a disabled physician's assistant who injured his scalp on a low basement ceiling beam around a year ago. When he was first seen he had a thick escar over the area. This was debrided and cultured. It grew Staph aureus with the usual sensitivities and he was treated with wet compresses, dicloxacillin and bactroban ointment. Since his initial visit 4 months back it has not gotten smaller and now the central portion reaches the calvarium. Over the past six weeks, he has developed similar lesions on shoulders and upper back. By history these began at sites of ECG leads.

Pertinent medical history is positive for insulin-dependent diabetes, hypertension and coronary artery disease. His medications include insulin, warfarin, enalapril, furosemide, ASA, oxycodone.

O/E: 3 cm ulcer mid parietal area of scalp. Erosions on both shoulders, surface somewhat escharotic. Some with irregular borders.

Photos:


4 months later








Lab: Occasional skin cultures positive for S. aureus (not MRSA), CBC shows mild normochromic normocytic anemia. (Hct 32.6.Hgb 11.2).

Pathology: "Ulceration with scar. No evidence of malignancy." Repeat biopsy April 18, 2008 from new lesion on shoulder send to Canadian National Pathology Lab.

Diagnosis: Non-healing erosions etiology unclear. One always considers factitial disease in health care professionals with atypical skin lesions and this man also has free access to needles as a diabetic. In a year, the scalp lesion has shown no tendency to improve.

Further Treatment: He was treated with topical corticosteroids in case this was erosive pustular dermatitis of the scalp (no response) and imiquimod in case erosion might have been hypergranulation tissue. (no response) We ordered Duoderm dressings, but they were too expensive for the patient.

Questions: Where would you go from here? Diagnostic and therapeutic suggestions.