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Path B12 Joint/Soft Tissue Tumors -- 3 q's Flashcards

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5506184123Ganglion (Synovial) CystBenign cyst near joint capsule or tendon sheath Wrist is common Asymptomatic0
5506186434Tenosynovial Giant Cell Tumor (TGCT)Benign neoplasm of synovium 2 types - diffuse and localized1
5506187650Diffuse TGCTMimic monoarticular arthritis Knee is common --> locking, pain, swelling2
5506189540Localized TGCTSlow growing Wrist and finger tendon sheaths Most common soft tissue tumor of hand3
5506192383Synovial SarcomaDeep soft tissues around large joints of extremity Knee is common *Will metastasize* to lung, bone, regional lymph nodes Biphasic appearance4
5506206059LipomaBenign, most common soft tissue tumor in adult Mobile, slowly enlarging Encapsulated5
5506207598LiposarcomaMalignant neoplasm Deep soft tissue in the *retroperitoneum* Well-differentiated - good Myxoid/round cell - bad, metastasize to lung after excision6
5506215807Nodular FascitisReactive proliferation, trauma precedes growth Fibroblastic proliferation on forearm, chest, back Painful, rapidly growing7
5506218067Myositis OssificansReactive proliferation, trauma precedes growth Proximal muscles of extremities in young adults --> calcification8
5506220719FibromatosesFibroblastic proliferations that infiltrate 2 types - superficial and deep9
5506223385Superficial FibromatosesPalmar Plantar Penile Well differentiated, long sweeping bundles10
5506224307Palmar FibromatosisDupuytren's contracture Nodular thickening of palmar aponeurosis --> flexion deformities in fingers Middle aged men11
5506226805Plantar FibromatosisLedderhose's disease Nodular thickening of plantar aponeurosis12
5506227244Penile FibromatosisPeyronie's disease Abnormal curvature of penis13
5506232019Deep Fibromatoses (Desmoid tumors)Abdominal Intra-abdominal Extra-abdominal Deep IM location Large size 10-15 cm Infiltrative, high rate of recurrence14
5506235377Abdominal Deep FibromatosisAbd wall in young women Peripartum/post-partum15
5506236887Intr-abdominal Deep FibromatosisYoung adults Mesentery Associated w/ Gardner's syndrom16
5506238226Exra-abdominal Deep FibromatosisMost aggressice Adults in 20's-30's Pectoral and pelvic girdles17
5506471135FibrosarcomaMalignant neoplasm of fibroblasts Deep tissues of thigh, knee, retroperitoneal area Slow growth Metastasize to lungs Soft, unencapsulated, w/ hemorrhage and areas of necrosis18
5506474207Fibrohistiocytic TumorsMix of fibroblasts and phagocytic lipid laden cells that resemble activated macrophages Benign or Sarcoma19
5506477533Benign Fibrohistiocytic TumorsCommon and small Mobile nodule in dermis or subcutaneous tissue20
5506478762Pleomorphic Fibrohistiocytic TumorsPloemorphic fibroblastic sarcoma or pleomorphic undifferentiated sarcoma Swirling pattern 30-50% will metastasize21
5506481507RhabdomyosarcomaSkeletal muscle tumor Most common soft tissue sarcoma in kids Head and neck or genitourinary tract22
5506482790LeimyomaSmooth muscle tumor Benign Uterus......can be anywhere though23
5506483955LeiomyosarcomaMalignant smooth muscle tumor Females24

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