- 英
- perivascular pseudorosette
- 関
- 偽ロゼット
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- 1. RhD型不適合：妊娠および産後患者における予防rhd alloimmunization prevention in pregnant and postpartum patients [show details]
… respectively ; risk factors (eg, cesarean delivery) will only identify 50 percent of these cases . Rosette test – The rosette test is a qualitative, yet sensitive test for fetomaternal bleeding. We suggest performing … antenatal prophylaxis because of the possibility of a false-negative result. A false-negative result (an RHD-positive fetus incorrectly…
- 2. まれな脳腫瘍uncommon brain tumors [show details]
…tumors have been reported, typically in association with an elevated Ki-67 index (>5 percent) . Rosette-forming glioneuronal tumors are rare, slow-growing WHO grade 1 lesions primarily affecting young … positive for oligodendrocyte transcription factor 2 (OLIG2) . The characteristic finding is diffuse, perivascular, astroblastic pseudorosettes. Low-grade and high-grade variants exist, and grade and mitotic index …
- 3. スピッツ母斑と非定型スピッツ腫瘍spitz nevus and atypical spitz tumors [show details]
… with discohesive junctional melanocytic nests and perivascular lymphoid infiltrates.… and branched epidermal retia (a "filigree-like" pattern); rosette-like arrangements of melanocytes; and striking maturation… the ability of Ki-67 staining to discriminate atypical lesions from melanoma is limited and false positive or negative results may occur.…
- 4. アナフィラキシーの臨床診断を裏付ける臨床検査laboratory tests to support the clinical diagnosis of anaphylaxis [show details]
… and mast cells at mucosal surfaces contain less tryptase than those in the skin and perivascular tissues.… know when an elevated tryptase level indicates mast cell activation near the time of death or is a false positive. The diagnostic specificity of postmortem tryptase levels has been challenged by a study …
- 5. 乱用薬物の体内隠匿（ボディパッキング）internal concealment of drugs of abuse body packing [show details]
… sign") Air in the tied ends of condoms (the "rosette sign") Pooled data suggests that the sensitivity of… presence or absence of packets on a plain abdominal radiograph in 14 percent (41/279) of studies . False positive studies can also occur in the setting of bladder stones, hardened stool , or intraabdominal …
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- 腫瘍内部に小さなのう胞が複数みられます。病理像では，血管周囲に細胞核がない無核野が認められます。血管周囲に伸びた繊細な単極性突起が集まった領域です。これは，血管周囲偽ロゼット perivascular pseudorosette という上衣腫に
- 血管周囲性偽ロゼットは、腫瘍細胞が血管周囲に集合し、腫瘍細胞の突起により無核帯 anuclear zoneが形成されるもので、上衣腫のほぼ全例で観察される。
- 上衣腫 (WHO grade Ⅱ)は小型で均一な腫瘍細胞が血管周囲性偽ロゼット配列を示すことが特徴であり、多くの症例で観察される。中心管を模した上衣ロゼットが上衣腫の診断に有用であるが、典型的なロゼット形成は比較的少数の症例にしか
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★リンクテーブル★
[★]
- 同
- 血管周囲偽ロゼット
[★]
- 英
- blood vessel, blood vessels
構造
- 内皮細胞(単層扁平上皮細胞)
- 基底板
- 内皮下結合組織(内皮下層 subendothelial layer)：疎性結合組織、縦走平滑筋
- 内弾性板
分類
[★]
- 英
- rosette
- ラ
- rosetta
- 同
- 花冠、菊座、神経膠ロゼット glial rosette
- 関
- 花紋板、ロゼット形成細胞
[★]
- 英
- surrounding、circumferential、ambient、peri、around, circumference
- 関
- 環境、外周、約、外界
[★]
- 英
- false、spurious
- 関
- 仮性
[★]
- 英
- peritubular、periductal