key: cord-1021418-o0sptbp3 authors: ALHetheli, Ghadah I; Aljarbou, Ohoud Z; ALHumidi, Ahmed; AlJasser, Mohammed I title: Atypical Palmar Involvement with Erythema Elevatum Diutinum as a Sole Manifestation: A Report of Two Cases date: 2020-08-07 journal: Clin Cosmet Investig Dermatol DOI: 10.2147/ccid.s241960 sha: 134ec91edcd8d52040af844e3f6c980a7e22beba doc_id: 1021418 cord_uid: o0sptbp3 Erythema elevated diutinum (EED) is a rare distinctive form of cutaneous leukocytoclastic vasculitis. EED typically presents with asymptomatic symmetrical erythematous-brown papules, nodules or plaques which favor the extensor aspect of extremities while distinctly sparing the palms. We report two cases of EED with a rare presentation limited to the palms. Erythema elevatum diutinum (EED) is a rare distinctive form of cutaneous leukocytoclastic vasculitis. It is typically characterized by asymptomatic, symmetrical, firm, erythematous-brownish papules and nodules or plaques which favor the extensor surface of extremities. 1,2 EED was first described in 1988 in a male patient by Hutchinson 3 and in a female patient in 1889. 4 Later on, in 1894 Radcliff-Crocker and William gathered the two types in one entity under the name of EED. 3 EED can occur at any time during life, but more often affects people in their fourth to sixth decades with no racial variations. However, it can appear earlier in life in patients with Human immunodeficiency virus (HIV). 5 Herein, we report two distinctive cases of EED with a rare presentation of limited palmar involvement. A 65-year-old male known to have diabetes mellitus presented with a painful palmar rash for 2 weeks. This was preceded 1 week ago with fever and sore throat which resolved after treatment with an oral antibiotic for approximately 1 week. The patient had no history of other respiratory symptoms, abdominal pain, or joint pain. Skin examination revealed multiple purpuric macules and patches affecting both palms (Figure 1 ). Involvement of the right palm was more prominent. The right big toe had similar findings. Mucous membranes were intact and peripheral lymph nodes were not enlarged. The rest of systemic examination was normal. A skin biopsy from the margin of the proximal part of the right palm was obtained with the differential diagnosis of either vasculitis or vasculopathy related to a thromboembolic process. Biopsy showed perivascular neutrophilic infiltrate with some lymphocytes and few extravasated red blood cells ( Figure 2 ). There was evidence of leukocytoclasia and scattered interstitial neutrophils. A diagnosis of early EED as a form of small blood vessel vasculitis was made and vasculitis workup was performed. Erythrocyte sedimentation rate (80 mm/hr; normal range 0-15 mm/hr), C-reactive protein (120 mg/L; normal <8 mg/L), and serum ferritin (963 µ/L; normal range 22-275 µ/L) were very high. Antistreptolysin O titer was elevated (429 IU/mL; normal <116 IU/mL). Anti-cyclic citrullinated peptide antibody was normal (3.96 u/mL; normal <20 u/mL). Complete blood count, serum electrolytes, urinalysis, coagulation profile, liver function, and renal profile were all within normal limits. Screening for antinuclear antibody, anti-double-stranded DNA, antineutrophil cytoplasmic antibodies (C-ANCA and P-ANCA), complements, cryoglobulins, serum immunoglobulins, creatine kinase, and antiphospholipid antibodies were normal. Blood, urine, and respiratory cultures were negative. Polymerase chain reaction (PCR) on nasopharyngeal swabs was negative for adenovirus, rhinovirus, coronavirus, influenza viruses, respiratory syncytial virus, and Mycoplasma pneumoniae. Blood cytomegalovirus PCR was negative. Serology for hepatitis B virus, hepatitis C virus, human immunodeficiency virus, and Epstein-Barr virus was negative. Serum protein electrophoresis was normal. Echocardiography and computerized tomography scan of the chest, abdomen, and pelvis did not reveal any abnormality. Based on the aforementioned findings, the patient was diagnosed with atypical EED secondary to streptococcal throat infection. Written informed consent has been provided by the patients to have the case details and any accompanying images published. Institutional approval was not required to publish the case details. No therapy was initiated for the throat infection since it was already treated with empirical antibiotics and there were no upper respiratory symptoms or fever. Due to the limited skin involvement, topical tacrolimus 0.1% and betamethasone dipropionate ointments were applied for 2 weeks with no improvement. The patient continued to have pain in both palms; therefore, prednisolone 30 mg orally once daily was started. This resulted in a significant improvement after a few days. However, the eruption flared up upon tapering prednisolone over 2 months. The patient refused to switch the treatment to colchicine or dapsone. Clobetasol propionate cream was prescribed instead. Five months after the onset of the eruption, there was almost complete resolution of the rash without the use of clobetasol propionate (Figure 1 ). A 66-year-old male farmer known to have diabetes mellitus on metformin presented to dermatology clinic with 2-week history of painful palmar lesions restrict his daily work activity. Examination showed erythematous to violaceous plaques limited to both palms ( Figure 3 ). There were no other mucocutaneous, nail, or hair findings. Other clinical systemic enquiry was not remarkable. This rash was preceded by upper respiratory tract infection during which he was treated by a seven-day course of oral antibiotics and analgesics. Our working diagnosis was neutrophilic dermatosis of hands with the differential diagnosis of erythromelalgia and vasculitis. A 4 mm punch biopsy was taken from the thenar eminence of Left palm and showed normal epidermis with underlying mixed inflammatory cell infiltrates including fibroblast, histiocytes, lymphocytes, neutrophils and eosinophils. Eosinophils were also seen infiltrating some of the small blood vessels with endothelial cell swelling and few extravasated RBCs. There was an early sign of fibrosis in papillary dermis (Figures 4 and 5) . The overall histologic findings were suggestive of early erythema elevatum diutinum (EED). Consequently, diagnosis of leukocytoclastic vasculitis with the suggestion of early EED was made and vasculitis workup was performed. Complete blood count was normal. Electrolytes, renal function test, liver function test and urine analysis were all normal. Erythrocytes sedimentation rate and rheumatoid factor were normal. Anti-streptolysin O titer was raised (374 IU/mL; normal <116 IU/mL) Serum protein electrophoresis and serum immunoglobulins were of normal pattern. Anti-nuclear antibodies, anti-double-stranded DNA, and anti-neutrophil cytoplasmic antibodies (C-ANCA and P-ANCA) were all normal. Hepatitis, HIV, Syphilis serology were negative. Chest x-ray and Computed tomography for chest, abdomen and pelvis were both with normal findings. Depend on the constellation of findings from patient's history and results of whole laboratory and histopathologic workup, the patient was diagnosed with atypical EED a farmer. Three months after continued topical treatment, the palmar lesions completely cleared (Figure 3 ). The etiology of EED is not well understood, but it is believed to be related to vascular deposition of circulating immunocomplexes. 6 EED has been associated with multiple underlying diseases like infections (streptococcal infection, hepatitis B and C virus, HIV), 7 rheumatologic diseases (rheumatoid arthritis, lupus erythematosus), 8 inflammatory bowel diseases (ulcerative colitis, Crohn's disease) 9 and hematological disorders like myelodysplasia, 10 multiple myeloma, 11 lymphomas (B-cell lymphoma, 12 non-Hodgkin's lymphoma 13 ) and paraproteinemias. 14 EED typically presents with red-violaceous to brown nodules and/or plaques over extensor surfaces. Atypical DovePress presentation of EED has been reported including truncal involvement. 15, 16 Atypical distribution of EED has also been reported as the first clinical sign of non-Hodgkin's lymphoma. 13 There have been several cases reported of classic EED presentation along with the involvement of other atypical sites like the palms and soles [17] [18] [19] and the oral mucosa. 20 Isolated involvement of palms and soles in EED as seen in our cases is very rare. 12, 21, 22 This makes the diagnosis more challenging with a high potential to be missed. This is especially true when the other usually affected body sites in EED are spared as seen in our cases. We report two cases of atypical EED limited to the palms. The typical, acral, symmetrical morphological features together with the age of both patients and the mixed perivascular inflammatory cells infiltrate with the early dermal fibrosis are all in favor of EED. The high ESR in the first case also goes with EED. The histological findings were against the differentials which are neutrophilic dermatosis of hands (variant of sweet syndrome), vasculopathy due to thromboembolic event and erythromelalgia. Even with the literature review, the possible reason behind this was not mentioned by the authors. We believe it is just a different and unusual site of distribution like any other rare presentations of other diseases. Hence, just to do not overlook the possibility of it. Both patients had a preceding streptococcal throat infection. Favorable prognosis with a resolution of lesions within approximately 3-6 months was noted in both cases. Early EED secondary to streptococcal throat infection should be considered in the differential diagnosis of isolated painful palmar erythema. 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A clinical and histopathologic study of 13 patients Atypical presentation of erythema elevatum diutinum An atypical distribution of erythema elevatum diutinum Erythema elevatum diutinum: an atypical presentation REPORT a rare case of erythema elevatum diutinum presenting as diffuse neuropathy Erythema elevatum diutinum in Crohn's disease-associated spondyloarthritisa rare vasculitis, an unusual association An atypical presentation of erythema elevatum diutinum involving palms and soles Erythema elevatum diutinum involving palms and soles: a case report and literature review The authors report no funding and no conflicts of interest for this work.