Primary malignant melanoma of the genitourinary tract: case series of a rare form of primary mucosal melanoma.

Primary malignant melanoma of the genitourinary tract is extremely rare. We present two such cases in elderly Caucasian females. An 81-year-old female with urinary retention and polypoid urinary bladder mass and a 72-year-old female with gross hematuria and urethral caruncle.

Thirteen Synchronous Multifocal Calcifying Epithelial Odontogenic Tumors (CEOT): Case Report and Review of the Literature.

Background: Calcifying epithelial odontogenic tumor (CEOT, Pindborg tumor) is a rare, benign, locally aggressive neoplasm of the jaws that accounts for approximately 1% of all odontogenic tumors. It was first defined by Pindborg in 1955 and has been reported approximately 350 times in the literature; 7 reported multiple (up to 4) synchronous lesions.

Materials And Methods: We report an individual with the largest number of CEOTs reported to date and provide a literature review of multifocal CEOT cases.

Outside the Thorax: Doege-Potter Syndrome Presenting as a Retroperitoneal Abdominal Mass.

Objective: We present a case of refractory hypoglycemia, weight loss, and retroperitoneal solitary fibrous tumor. . A 68-year-old female presented with symptomatic hypoglycemia, weight loss, and abdominal mass identified on CT scan of the abdomen.

Educational Case: Gallstones, Cholelithiasis, and Cholecystitis.

http://journals.sagepub.com/doi/10.

Human Papillomavirus Infection of the Skin.

Context: - Human papillomavirus is implicated in the pathogenesis of benign and malignant neoplasms of the skin.

Objective: - To review the role of human papillomavirus in the development of malignancies and their precursor lesions in skin.

Data Sources: - The study comprised a review of the literature.

Unicentric epithelioid hemangioendothelioma of the calcaneus: a case report and review of literature.

Background: This review of the literature combined with a clinical case will allow the illustration of of this variable malignancy, display a role for limb salvage surgery with intralesional treatment, and offer a clinical example of epithelioid hemangioendothelioma, a rare malignancy.

Case Presentation: The case report presents a case of solitary epithelioid hemangioendothelioma (EHE) of the calcaneus in a 60-year-old male. Primary vascular tumors of the bone are rare; however, EHE is one of the most common primary malignant vascular tumors to occur in bone.

Retroauricular Pleomorphic Adenoma Arising from Heterotopic Salivary Gland Tissue.

A 38-year-old woman is described who presented with a slowly growing mass on the posterior aspect of the left ear. Excision and histopathologic evaluation revealed a pleomorphic adenoma (PA) originating from heterotopic salivary gland tissue. Many authors have presented cases of PAs originating from ceruminous glands in the external auditory canal or of so-called chondroid syringoma originating from apocrine and eccrine sweat glands.

IgA Nephropathy in a Patient Presenting with Pseudotumor Cerebri.

IgA nephropathy is the most common glomerulonephritis worldwide and typically has minimal signs for chronicity in histopathology at the time of initial presentation. Pseudotumor cerebri (PTC) is characterized by increased intracranial pressure in the absence of any intracranial lesions, inflammation, or obstruction. PTC has been reported in renal transplant and dialysis patients, but we are unaware of any reports of pseudotumor cerebri in patients with IgA nephropathy.

Bullous Henoch-Schönlein purpura in children.

Henoch-Schönlein purpura (HSP) is a systemic vasculitis that is common in the pediatric population and often presents with the classical triad of palpable purpura, arthralgia, and abdominal pain. We describe a case of HSP in a 14-year-old adolescent girl who presented with atypical features of painful hemorrhagic bullae. The patient was treated with high-dose steroids, dapsone, and supportive therapy with remarkable improvement.

Myeloid Sarcoma of the Bladder in the Setting of Refractory Anemia with Excess Blasts-2 (RAEB-2).

Myeloid sarcoma is an extramedullary tumor consisting of immature hematopoietic cells of granulocytic or monocytic differentiation. While rare, it can be seen in a variety of clinical settings and is most commonly associated with acute myeloid leukemia (AML), myelodysplastic syndromes (MDS) and myeloproliferative neoplasms (MPN). We present a rare case of myeloid sarcoma occurring in the bladder of a 56 year old male.

Perirenal extra-adrenal myelolipoma.

Myelolipomas are rare tumors consisting of both adipose and hematopoietic tissue and are typically found within the adrenal gland. Extra-adrenal involvement is rare, especially those tumors involving the perirenal space and collecting system. We report a case of a patient with an incidentally discovered perirenal mass that was initially concerning for a retroperitoneal liposarcoma.