Subcutaneous sarcoidosis: A case series of 19 patients.

Subcutaneous sarcoidosis is a rare variant of this disease, whose relationship with systemic disease is still controversial. Our objective was to describe the clinical characteristics of a series of patients with subcutaneous sarcoidosis and to investigate the relationship between these skin lesions and the disease's activity, severity, and prognosis. Nineteen patients with biopsy-confirmed subcutaneous sarcoidosis between 2009 and 2019 were selected. Mean age at diagnosis was 53 years. Lung involvement was detected in 10 patients (52.6%), mainly in stages I and II. Only two patients (10.5%) had additional systemic signs and five patients (26%) suffered from other autoimmune diseases simultaneously. Six patients (31.6%) had elevated angiotensin-converting enzyme levels (mean level 174.5 U/L). Eight patients (42%) received treatment, mainly systemic corticosteroids, and all patients except for one had a favorable clinical outcome. Subcutaneous sarcoidosis is frequently associated with a mild form of systemic disease, and the prognosis seems favorable regardless of treatment. Sarcoid nodules could be an early finding of systemic disease, allowing for less invasive procedures for histological confirmation.

Cutaneous Sarcoidosis.

Sarcoidosis is a multisystem disease that most commonly affects the lungs, lymphatic system, eyes, and skin but any organ may be involved. Cutaneous sarcoidosis most commonly presents as pink-red to red-brown papules and plaques that commonly affect the head and neck. With the skin being readily accessible for evaluation and biopsy, when sarcoidosis is suspected, dermatologic evaluation may be helpful for establishing a definitive diagnosis. Treatment strategy depends on the severity and distribution of skin lesions and should incorporate patient preference and treatment considerations for other organs that may be involved.

Darier-Roussy Subcutaneous Sarcoidosis Masquerading as Multiple Abscesses: A Report of a Rare Case.

Sarcoidosis is an idiopathic multisystemic granulomatous disease that mainly affects the lungs. Darier-Roussy subcutaneous sarcoidosis is among the specific and least encountered skin manifestations of sarcoidosis. In this case study, we report how subcutaneous sarcoidosis could mimic multiple abscesses presentation and hinder reaching a definitive diagnosis. A 65-year-old female presented with five, multiple, deep-seated skin lesions on the forearm, chest, and scalp. The lesions showed redness and tenderness. The patient also experienced arthralgia in the right ankle. Laboratory workup of the patient showed a high erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and white blood cell (WBC) count. The patient was suspected to have multiple abscesses, which were managed with antibiotics with no response. Thus, a computed tomography (CT) scan of the chest was done and showed mediastinal lymphadenopathy. A biopsy was taken from one of the right forearm skin lesions, and it revealed characteristic features consistent with sarcoidosis. The patient was managed with hydroxychloroquine and a tapering dose of prednisone. Therefore, subcutaneous sarcoidosis should be included in the differential diagnosis of subcutaneous lumps.

Polymorphous Cutaneous Sarcoidosis With Excellent Response to Minocycline.

Sarcoidosis is notorious for producing a wide variety of skin lesions, which are categorized as either specific or nonspecific. The specific lesions include primary morphologies ranging from micropapules to subcutaneous nodules. Nonspecific skin lesions include associated conditions like erythema nodosum, calcinosis cutis, and prurigo. It is not uncommon for a patient to have a combination of specific and nonspecific lesions. In contrast, it is exceedingly rare for one patient to have multiple specific sarcoidal lesions. When present, the term "polymorphous cutaneous sarcoidosis" has been used. We present the case of a patient who presented with three specific cutaneous morphologies of sarcoidosis: papular sarcoid, Darier-Roussy subcutaneous sarcoidosis, and lupus pernio. After only two months of oral minocycline, our patient demonstrated remarkable improvement with near-complete resolution of the cutaneous lesions. In addition to describing the rare polymorphous presentation, this case also highlights the challenge of relating lesion type to overall prognosis when multiple morphologies are present.

Darier Roussy Subcutaneous Sarcoidosis from Nepal: A case report.

Introduction: Sarcoidosis is a common, multisystemic non-caseating granulomatous disease of unknown etiology with cutaneous lesions present in about one-fourth of patients. Darier Roussy sarcoidosis is a rare variant of sarcoidosis with distinct cutaneous presentation characterized by multiple deep-seated nodules on the trunk and extremities which could either be asymptomatic or may present mild tenderness. Case presentation: A case of 35 yrs male with cough and fever for 3 months was initially diagnosed as a case of tubercular lymphadenitis and started with ATT following which ATT-associated cutaneous adverse drug reaction was suspected due to development of rashes with generalized redness and mild itching a few weeks after starting ATT. He then developed multiple, skin-colored, deep-seated, subcutaneous lesions over the legs then over the arms, forearms, thigh, and trunk. FNAC and histopathological examination of the lesions revealed non-caseating granulomas composed localized to the subcutaneous tissue. A diagnosis of subcutaneous sarcoidosis was made. Subsequently, steroid therapy was started. Discussion: Clinical manifestations of sarcoidosis range from asymptomatic (mostly) to progressive and relapsing disease. A family history of the disease raises the risk; those with one afflicted first-degree relative face a 3.7-fold increase in risk. Sarcoidosis is diagnosed based on three key criteria: a consistent clinical presentation, the discovery of non-necrotizing granulomatous inflammation in one or more tissue samples with confirmed histology, and the elimination of other origins of granulomatous disorders. . Diagnosis should be confirmed with a biopsy of the lesion, with the histological finding of non-caseating granuloma. Conclusion: Clinically localized subcutaneous sarcoidosis can be confused with ATT induced drug reaction due to the difficulties in diagnosing granulomatous skin disease. The prognosis is good with subcutaneous disease and if there are no disfiguring skin lesions or other critical organ involvement, corticosteroid therapy might suffice.

Atraumatic forearm swelling in a patient with poorly controlled asthma.

We present a case of sarcoidosis presenting as unilateral forearm swelling. A 65-year-old male with a long history of asthma presented with unexplained left forearm and hand swelling. Over many years, chest imaging had been devoid of adenopathy or parenchymal findings suspicious for sarcoid, until after the extremity findings emerged. The patient was diagnosed based on subcutaneous, dermal and mediastinal lymph node histopathology. Sarcoid presenting with isolated extremity findings prior to more typical pulmonary manifestations is rare even for cutaneous or soft tissue sarcoid, highlighting the need to maintain a high index of suspicion for sarcoidosis.