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 (bŏt′rē-oid′l) also bot·ry·oid (bŏt′rē-oid′)
Shaped like a bunch of grapes. Used especially of mineral formations: botryoidal hematite.

[From Greek botruoeidēs : botrus, bunch of grapes + -oeidēs, -oid.]

bot′ry·oi′dal·ly adv.
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Adj.1.botryoid - resembling a cluster of grapes in form
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References in periodicals archive ?
The mass appeared to be several combined structures that looked botryoid (Fig 2).
Urinary bladder botryoid rhabdomyosarcoma with widespread metastases in an 8month-old Labrador cross dog.
Botryoid cysts are characterized by a multilocular histologic finding and a higher risk of recurrence than lateral periodontal cysts.
Horn and Enterline in 1958 devised the first classification based on the pathological features into Embryonal, Botryoid, Alveolar and Pleomorphic subtypes.
Embryonal RMS has three variants, botryoid variant, spindle cell variant and anaplastic variant.
5) These changes included the elimination of botryoid RMS as an independent diagnosis, instead classifying it under typical embryonal RMS.
Eventually, after a scan showed a blockage, it was discovered that Jayden had a tumour in his bladder and he was diagnosed with Botryoid Rhabdomyosarcoma, an extremely rare form of cancer.
The other two histological types are pleomorphic and botryoid, which account for <10%, and are also associated with a favourable outcome.
9%) of other cysts, such as lateral periodontal, botryoid odontogenic, and gingival cysts (Table 1).
Acute lymphoblastic leukemia + bone marrow transplantation (2) Acute lymphoblastic leukemia (6) Acute myeloblastic leukemia (3) Adrenal cortical carcinoma (1) Astrocytoma (1) B-cell lymphoma (1) Botryoid rhabdomyosarcoma (1) Brainstem primitive neuroectodermal tumor (2) Burkitt lymphoma (1) Craniopharyngioma (2) Ependymoma (1) Fanconi anemia + allogeneic BMT (1) Forearm rhabdomyosarcoma (1) Hepatoblastoma (1) Infantile fibrosarcoma (1) Medullary aplasia + allogeneic BMT (1) Medulloblastoma (1) Neuroblastoma + Pepper syndrome (1) Optic nerve glioma (1) Oropharynx undifferentiated carcinoma (1) Rhinopharynx carcinoma (1)
The two main histological subtypes of RMS affecting the paediatric age group are embryonal (with botryoid and spindle cell variants) and alveolar.
In the international classification of rhabdomyosarcoma there are 5 recognized variants: embryonal, alveolar, botryoid embryonal, spindle cell embryonal and anaplastic.