Isolated myeloid sarcoma of lumbar spine without bone marrow involvement: a rare case report and treatment dilemma.

Granulocytic sarcoma, chloroma, myeloblastoma, or here referred as myeloid sarcoma (MS), is a rare extramedullary tumor composed of immature myeloid cells called myeloblasts. MS is seen most commonly in patients with acute myeloid leukemia and less frequently in chronic myeloid leukemia, myelodysplastic syndrome. In rarer instances, MS has been shown to precede the development of myeloid tumors by acute myeloblastic leukemia (AML). In particular, isolated MS involving spine is extremely rare. We herein present a rare case of isolated spinal MS in non-leukemic patient. This is a previously relatively healthy 47-year-old man who presented with signs of lumbar spinal cord compression, initially reported as schwannoma on imaging, later diagnosed with spinal MS on pathology. Further workup did not reveal any evidence of bone marrow or other hematological involvement. The patient successfully treated by L4/L5 laminectomy and debulking with subsequent radiation resulting in substantial decrease in size of tumor with significant improvement in symptoms during follow up. This case not only describes a rare case of isolated MS of lumbar spine, but also highlights the potential treatment challenges of such a rare diagnosis. We review the available literature, discuss available treatment options, and highlight the need for further investigations along with increased clinician awareness.

Locus Minoris Resistentiae: Two Cases of Malignant Metastasis and Review of Literature.

Locus minoris resistentiae refers to a region of decreased resistance within the body. This occurs from changes to the microenvironment secondary to previous trauma and results in increased vulnerability. As a result, infection, inflammatory processes, and malignancy may localize to this area. In this article, we describe 2 unique cases of malignancy, primary prostate carcinoma and serous carcinoma of the ovary, both of which disseminated to sites of prior trauma. We review the available literature, discuss proposed pathophysiology, and highlight the need for further investigations along with increased clinician awareness.

A Progressive Case of Eosinophilic Myocarditis Due to Eosinophilic Granulomatosis With Polyangiitis in a Caucasian Male.

Vasculitis is an inflammatory process involving blood vessels of various sizes, including the small vessels in the kidneys to the large vessels, such as the aorta. This inflammatory condition is usually autoimmune in nature and is associated with involvement of many locations, such as the sinuses, lungs, kidneys, and even the heart. Specifically, eosinophilic granulomatosis with polyangiitis (EGPA) is a systemic vasculitis that may initially hide as asthma, allergic rhinitis, and/or sinusitis. However, it is known to become a lethal disease once progressed to include cardiovascular manifestations. It is important to remember EGPA as a differential for any patient with a history of asthma, allergic rhinitis, and/or sinusitis who also presents with cardiovascular complaints and eosinophilia. Treatment recommendations focus on immunosuppression in such cases. In this article, we discuss the case of a 62-year-old male, with a known history of asthma, who presented to the emergency department with concern for his chest pain and right-sided weakness. He was later diagnosed with EGPA with eosinophilic myocarditis. Diagnosis and treatment are described.

Acute Myelogenous Leukemia With Trisomy 8 and Concomitant Acquired Factor VII Deficiency.

Acquired isolated factor VII deficiency is a rare bleeding disorder and has been reported in 31 cases. This is in contrast to congenital factor VII deficiency, which while also infrequent is the most common rare congenital bleeding disorder. Acquired isolated factor VII deficiency has been described primarily in patients with solid malignancies, sepsis, and in the presence of anti-factor VII autoantibodies. We report a case of acute myelogenous leukemia with an associated trisomy 8 cytogenetic abnormality presenting with factor VII deficiency. The factor VII deficiency cleared after induction chemotherapy and with the disappearance of the cytogenetic and molecular abnormalities. We discuss a possible link between trisomy 8 and vitamin K metabolism, which might result in acquired factor VII deficiency in acute myelogenous leukemia.

Leptomeningeal Carcinomatosis From Carcinoma of Unknown Primary in a Young Patient: A Case Report and a Literature Review.

Leptomeningeal carcinomatosis, leptomeningeal meningitis, or, as referred here, leptomeningeal metastasis (LM), is a rare but frequently fatal complication seen in advanced stage of cancer either locally advanced or after a metastasis of a known primary cancer. We present a rare and uncommon case of leptomeningeal metastases from carcinoma of unknown primary. A 32-year-old female was diagnosed with LM; however, no known primary carcinoma was identified after 2 separate biopsies. The first biopsy of the right pre-tracheal lymph node showed poorly differentiated pan-keratin (AE1 and AE3) and placental alkaline phosphatase with the possibility of germ cell origin. Second cytology of cervical lymphadenopathy was remarkable for cytokeratin 7 and 20, placental alkaline phosphatase, and CDX2 suggestive of germ line tumor with both mucinous ovarian and gastrointestinal carcinomas. Unfortunately, the LM progressed rapidly despite multiple cycles of germ cell origin directed systemic and intrathecal chemotherapy, and the patient opted for hospice care without getting a chance to identify the primary source.

An Unusual Presentation of Spinal Giant Cell Glioblastoma in a 21-Year-Old Female.

Primary spinal cord giant cell glioblastoma multiforme of the thoracic spinal cord is a rarely-diagnosed primary spinal cord tumor in comparison to neoplasms in intracranial locations. In this article, we highlight a young adult who was diagnosed with intramedullary giant cell glioblastoma, IDH wild-type, World Health Organization grade IV/IV of the thoracic spinal cord. This case report describes the treatment approach with a postsurgical combination of radiation therapy and temozolomide, which resulted in the patient to return to her baseline of health only to later develop neurological symptoms significant for a recurrence of malignancy. In a review of the literature of described cases of primary spinal cord glioblastoma multiforme, prognosis continues to be unfavorable as current treatment options of the aggressive malignancy remain absent of a cure.

A Synchronous Diagnosis of Metastatic Male Breast Cancer and Prostate Cancer.

In this article, we present a patient diagnosed synchronously with metastatic male breast cancer and prostate cancer. This is a 63-year-old male and recent immigrant from Nigeria, who sought medical attention for progressively worsening of shortness of breath and acute progression of a chronic right breast mass. An invasive breast carcinoma was diagnosed by the core biopsy of the right breast mass. Within 2 months of his breast cancer diagnosis, the patient also was diagnosed with prostate adenocarcinoma after being worked up for urinary retention. By presenting this patient with a synchronous diagnosis with metastatic male breast cancer and prostate cancer, history of chronic right breast mass, and gynecomastia, we speculate on possible cancer etiologies and risk factors.